,,- - - -,-
FINAL REPORT
PALYNOLOGY OF THE UPPERMOST LARAMIE AND ARAPAHOE FOI&lATIONS AT ‘TEE ROCKY FLATS PLANT mAR GOLDEN, COLORADO
U.S. DEPARTMENT OF ENERGY Rocky Flats hant
Golden, Colorado
ENVIRONMENTAL RESTORATION PROGRAM 30 APRIL 1993
Text, Table, and Plates
mMIN RECORD S W-A-004907 TABLE OF CONTENTS
Section -Title Page
1.o STUDY OBJECTIVES 1
2.0 INTRODUCTION 3
3.0 METHODS 4
4.0 RESULTS 5
5.0 CONCLUSIONS 10
6.0 REFERENCES CITED 11
Palynology of the Uppermost Laramie Final Report and Arapahoe Formations at the April 30, 1993 Rocky Flab Plant oc81 OOkh Colorado i LIST OF TABLES
Number -Title
1 ROCKY FLATS POLLEN, SPORES, AND DINOFLAGELLATE OCCURRENCES IN WELLS #B217489, #B218589, #00291, #00191, AND #B3 15289 2 ROCKY FLATS POLLEN, SPORES, AND DINOFLAGELLATE OCCURRENCES IN WELLS M2892, #40891, #40591, #40591, #B217689, AND #B217789 3 A COMPOSITE OF ROCKY FLATS POLLEN, SPORES, AND DINOFLAGELLATE OCCURRENCES IN WELLS #B217489 AND #B218589
Palyaology of tbc Uppamost Laramie and Arapabw Fommtiona at the 3 Rocky fiats Plant m?ar Go- Colorado ii PALYNOLOGY PLATES
-Title Plate Nos.
NON-MARINE FORMS: FERN SPORES 1-14 GYMNOSPERM POLLEN 15 - 20 ANGIOSPERM POLLEN 21 - 38
MARINE FORMS: DINOFLAGELLATES 39 - 44
I
Palywlogy of the Uppamost Laramae FiReport andAra&oe Formatiom at tbe Apnl30.1993 Rocky nats Plant near Go- Colorado iii LIST OF APPENDICES
Number -Title
1 TWO MEMOS FROM FRED GRIGSBY RE: POTENTIAL SUBSURFACE STRATIGRAPHIC MARKER BEDS 2 LrrHOLOGIC WELL LOGS
3 PLANT MICROFOSSIL COUNT DATA FROM WELL a17489 AND WELL W291
Palynology of the Uppermost Laramie FiiReport andArapaboeFomratiOllsattbe April 30.1993 5 Rocky Flats Plant near Goldea Colorado iv 1.0 STUDY OBJECTIVES
The current geologic characterization model for the Rocky Flats Plant (RFP) establishes au environment of deposition that is based upon interpretation of stratigraphic data
obtained from numerous boreholes and wells installed throughout the plant Site. The current
interpretation at the RFP for the Late Cretaceous age Arapahoe Formation is a meandering system of fluvial or lower deltaic sandstone-frlled distributary channels surrounded by
interdistributary claystone, mudstone, siltstone, or argrllaceous sandstone. Difficulties in
identifying and recognizing correlative units or continuous lithologies has confounded
stratigraphic interpretations. It was initially thought that a biostratigraphic study might aid in defhg and resolving the issue of depositional architecture through interpretation of the
depositional environments. However, during the course of this study, it became apparent that
a palynology study would not provide the stratigraphic resolution necessary to accomplish
this. Therefore, EG&G modified the objectives of the study to address several other relevant issues. 6.The fvst objective of this study was to evaluate the environments of deposition of the Laramie and Arapahoe Formations in the subsurface at the RFP. The determination of
sedimentary environments can be a useful tool for defining subsurface sandstone aquifer geometries.
2. The second objective of this study was to evaluate the location of the contact
Palynology of the Uppamost Laramie FiReport a 1993 and Arapahoe Formatiom at the -30, Rocky Fla@ Plant nex Golden, Colorado 1 0 between the Laramie and Arapahoe Formations.2 the Geologic Characterization Report (1991) the Arapahoe Formation underlying the RFP is described as consisting of 150 feet of
claystone, siltstone, and sandstone. According to the Surface Mapping Report (1992), the
Arapahoe Formation is significantly thinner. In the surface mapping report, the sandstone
defrned as Arapahoe Sandstone No. 1 in the Geologic Characterization is termed the basal Arapahoe Sandstone. 3. The third objective was to establish basic stratigraphic correlation. Correlations in the Phase I Geologic Charactexkition (July 31,1991) were based on the assumption that the
subsurface units are laterally continuous and relatively flat lying with a regional dip of 1.5
degrees to the east. In a recent field mapping project (Phase II Geologic Characterization Data Acquisition - - Surface Geologic Mapping of the RFP and Vicinity, Jefferson and e Boulder Counties, Colorado, 1992), it was suggested that faulting in the area could account for difficulties with stratigraphic correlation. Evidence for faulting was presented on COR
logs from the 1991-1992 site-wide drilling program (i.e.. Borehole 40291). In addition, one
or more potential marker beds (see attachments in Appendix 1) were identifed in the 1991-
1992 site-wide drilling program. One of the issues addressed by this biostratigraphic study
was to determine if any of the potential marker beds were truly correlative.
Palynology of tbe Uppermost Laramie ~innlReport e andArapaboeFomrationsatthe April 30,1993 Rocky Flats Plant eat Goklezr, Colored0 2 0 2.0 INTRODUCTION
The Upper Cretaceous (Maastrichtian) Laramie and Arapahoe Formations occur in the subsurface at the Rocky Flats Plant located north of Golden, Colorado. The Laramie Formation consists of sandstone, siltstone, claystone, and thin coal beds (See Generalized
Stratigraphic Section). According to Weimer and Land (1975), the Laramie Formation was
deposited in a delta plain environment along the western edge of the Western Interior Seaway.
Within the delta plain complex, sub-environments include channel, channel-levee, swamp,
crevasse splay, and bay or lake settings. The Arapahoe Formation consists of conglomeratic
sandstone, sandstone, siltstone, mudstone, and claystone (see Generalized Stratigraphic Section) and was deposited in a fluvialdeltaic environment.
The paiynology of the Laramie and Arapahoe Formations was studied to: 1)
document the depositional environments represented by the plant microfossil assemblages: and
to 2) determine if the two formations could be distinguished by their plant microfossil
assemblages; and finally to 3) determine if several thin calcareous siltstone beds within the
Laramie Formation could be used as stratigraphic correlation markers in the subsurface.
a Palynology of the Uppermost Laramie Final Report andArapabaFarmationsattbe April 30,1993 Rocky Flats Plant near Golden, Colorado 3 GENERALIZED STRATIGRAPHIC SECTION Best ~~~~1~~1~~~~~ Golden-Morrison Area JEFFERSON COUNTY, COLORADO , PERIOD FORMATION .-'HI DESCRIPTION
Green Conglomerates. sandstones and siltstones; caps Green Mountain Mountain LOWER TERTIARY
. . . Denver .....,...... Sandstones, shales, and conglomerates; volcanic material . ------/ common; lava flows near Golden are in upper third ut Arapahoe room formation. . . -- . - . . . .
Sandstones. shales, and thin coal layers in lowermost part: Laramie shales locally quarried - -Shales and sandstones; occasional fossils: shales dark gray - -n u f UPPER t Shales, Sandy shales, and few thin sandstones; hales dark CRETACEOUS Pierre 0 gray m n I\ u -Too thick to plot to Eale
moky Hills Shale, very limey (Smoky Hills unit); dark gray, speckled
Hays unit); locally quarried: forms minor
Shales with few thin limestones in middle Part; dark gmy; Benton streaks of bentonite common; platy siltstone (Mowry) at ------base LOWER some dark gray shales; filled stream -- -E CRETACEOUS Dakota t: noted for oil, gas. water. and ceramic .r 3 inent hogback east of Park ------~~ Sandstones, red and yay hales. and thin gray limestones; MorriJon JURASSIC reptilian fossils including dinosours occur locally
--Shales. sandstones, siltstones. and yyprum layen; lidht Ralrton Creeh .------red to tan TRIASSIC (?) Siltstones anJ hales; red: two thin limestones in luwer ------Lykins half - Glennon. Falcon PERMIAN Sandstones and conglomerates; gray to white; locally Lyons ------cross bedded and ripple marked
.-c UPPER Sandstones, siltstones, and conglomuates; conspicuously Fountain z red; most prominent formation outcropping3 in the Park 0 PENNSYLVANIAN I Y
Cambrian, Ordovician, Silurian 0).and Mississippian formations occur at this point in the Garden of the L. W. LeRoyi Gods. Colorado Springs - "- 1
PRECAMBRIAN Gneisses, ohins, and granite dikes and rills (1 to 2 billion years) 4' V @ 3.0 METHODS
Thirty core samples were collected from five wells on 8 September 1992. Four
additional core samples from two different wells were collected on 25 September 1992. After
initial analysis of the 34 samples, 15 additional samples were collected on 5 January 1993.
The 49 core samples were from the following wells: #00191, #00291, #40591, #40891, #41191, M2892, #B217489, #B217689, #B217789, #B218589, and #B315289. (see Appendix
2). The 49 core samples were processed to extract the plant microfossils used in the study.
The processed samples were then examined to characterize the plant microfossil assemblages.
Plant microfossils found in the samples include dinoflagellates and acritiuchs (marine
plankton), fern spores, and gymnosperm and angiospexm pollen. Plant microfossil specimens @ were counted in eight samples to determine the relative percentages of each plant type (Le. gymnosperm, fern spore, angiosperm, acritarch, and dinoflagellate) present in each sample
(see Appendix 3). The vegetational composition and likely depositional environment were
then inferred from the percentages of the plant types (see Conclusions section).
0 Palynology of the Uppennost Laramie 4 4.0 RESULTS
Tables 1 and 2 show the Occurrences of 52 pollen and spore taxa and 19 dinoflagellate taxa in the eleven wells. Fourteen samples were taken from well #B217489. Samples from this well contain pollen, spores, dinoflagellates, and acritarchs. The uppermost sample at
45.1’ -45.5’ yielded only 23 specimens. For a statistically accurate evaluation, a minimum of
200 specimens is necessary. Except for the samples from 45.1’, 75.9’’ 130.7” 198.3’, and
214.3’, the entire sampled interval contains both marine and terntrial plant microfossils.
The five samples listed above contain only terrestrial plant microfossils. The marine algae are represented by the dinoflagellates and acritarchs. The terrestrial vegetation is represented by pollen from both the gymnosperms and angiosperms and by fern spores. The marine component of the plant microfossil assemblage from well B217489 ranges from three to ten percent (see Appendix 3). Under normal marine conditions, the dinoflagellates would make up most of the assemblage.
In well #00291, the samples from 33.9’ and 35.0’ yielded five and seventeen specimens, respectively. The sample from 33.9’ yielded primarily gymnosperm pollen and no dinoflagellates. The sample from 35.0’ yielded several acritarch specimens, which are indicative of marine influence. Well #00191 was barren and yielded no significant specimens.
Under normal circumstances, the presence of dinoflagellates and acritarchs would indicate a marine or brackish-water depositional environment. One potential pitfall in interpreting depositional environments from relative percentages of marine and terrestrial taxa
Palydology of the Uppamost Laramie FdReprt andArapahoaponnatiOrrsatthe April% 1993 Rocky Flats Piant near Golden, Colorado 5 is the possibility that some of the taxa are derived from reworked older material. In this
study, the presence of Ovoidinium verrucosum is an example of older material occurring in
younger strata. Ovoidinium vemcosum last appears in place in the Cenomanian (Nichols and
Jacobson, 1982). There are three possible explanations for its occurrence in the Laramie
Formation. The fmt option is a localized extension of its stratigraphic range into the
Maastrichtian. The second option is that it is reworked from older strata. The third option is
that it is contamhation from the drilling mud manufactured with bentonites containing
Ovoidiniwn vemcoswn. Without knowing the source of the drilling mud used to dxill these.
wells, it is not possible to speculate on the third option. However, there am other clues to
rule out the fmt option. Reported occurzences of Ovoidhiurn vemcosm in strata younger
than Cenomanian or possibly Turonian, are interpreted to be out of place (Nichols and @ Jacobson, 1982). It is highly unlikely that the top of the stratigraphic range should be extended all the way from Cenomanian to the Maastrichtian. The second option is a mon?
realistic possibility. If other older taxa were present in the wells, then it is more likely that
there is reworked older material in the plant microfossil assemblage. In fact, there are several other taxa that have not been reported from strata as young as Maastrichtian. These taxa
include: Balaeohystricophora-infusorioides, Quadripollis krempii, and Umbosporites callosus.
These taxa were previously reported from strata as young as Campanian, but not
Maastrichtian. It is possible that the occuffence of these additional taxa in the Laramie
Formation represent local geographic extensions of their stratigraphic ranges. However, the
presence of Ovoidiniwn venucosum along with these taxa, makes reworking an option.
The implications of reworked material occurring within the assemblages makes
Palplogy of the Uppermost Laramie andAmpahoepolmatrOas* atthe 6 recreating a realistic picture of the vegetation and depositional environments more difficult. @ If there is reworked material present, it may not be appropriate to interpret the low
percentages of dinoflagellates in the Laramie Formation as indicative of marine conditions.
However, in this case, it may be appropriate to infer a marine influence within the Laramie
Formation, even though the= is evidence of reworked material. Within the dinoflagellate
assemblage there are several species of Dimgymium. Because the species of Dimgyrnniwn
that occur in the Laramie Formation are known to occur in Maastrichtian age strata, it is likely that they occur in place.
Additional evidence for marine conditions comes from Weimer and Land (1975) and
Spencer (1961). Weimer and Land (1975) reported the occurrence of the marine foraminifer,
Hupbphrugmoides sp. and Spencer (1961) reported the occurrence of marine mollusks within 0 the lower Laramie Formation. Although the occurrence of HaprOphrugmiCies sp. was above the sandstone beds of the Fox Hills Formation, Weimer and Land (1975) placed the strata
containing Hupbphrugnwides sp. into the Fox Hills Formation because its presence indicated
marine to brackish-water conditions. Taking this information into account, the portion of the Laramie Formation in this study most likely represents at least brackish-water conditions.
The high percentages of fern spore taxa in the study samples (see Appendix 2) indicate that
the depositional site was close to shore. Therefore, the portion of the Laramie Formation
encountered in this study probably represents a lagoonal, brackish-water environment. The results of the palynological study indicate that only the uppermost Arapahoe
Sandstone identified in the Geologic Characterization report is fluvial. The other sandstone
units were probably deposited in a shallow marine or brackish water environment.
Palynology of the Uppermost Laramie F' Report e andArapahoeFormationsatthe Apnl30.1993 RocLy Flats Plant near Goldeo, Cobrado 7 I3 a The second objective of this study was to determine if the Laramie and Arapahoe Formations could be differentiated on the basis of their respective plant microfossil
assemblages. AU of the samples from well B217489 are probably within the Laramie
Formation. The shallowest sample (45.1’-45.5’)does contain a slightly different plant
microfossil assemblage from the samples below. Unfortunately, there were only 23 specimens in that sample which makes a conclusive interpretation difficult Unless there is
lithologic evidence in this well for the LaramidArapahoe boundary between 45.5’ and 672,
the plant microfossil evidence is not strong enough by itself to indicate a boundary in this interval.
The samples from well #00291 provide some infoxmation for interpreting the
LaramidArapahoe boundary. The deepest sample (57.6’) contains a plant microfossil @ assemblage that is similar to the assemblage in well #B217489. This indicates that the deepest sample from well W0291 is within the Laramie Formation. The two shallower
samples (33.9’ and 35.0’) are more difficult to interpret because of the poor recovery of plant microfossils. Six specimens were recovered from the sample at 33.9’ and 17 specimens were
recovered from the sample at 35.0’. The sample at 35.0’ does contain several acritarchs which may indicate brackish-water conditions. It is possible that the acritarchs are reworked
from older material. Because the sample from 57.6’ is within the Laramie Formation, the
LaramidArapahoe boundary is above 57.6’ in well #00291.
The single sample from well #B315289 contained only one pollen specimen and
therefore, cannot provide any reliable information. The single sample from well #00191 was barren and therefore, cannot provide any additional information.
Palynology of the Uppermost JAramie Final Report . A@ 30, 1993 The results of this biostratigraphic study suggest that if the Arapahoe Formation is
present in the studied wells, it is relatively thin. Rock units identified in the Geologic Characterization report as Arapahoe Formation have similar plant microfossil assemblages as the Laramie Formation. Subsequent efforts to identify the shallowest bedrock units as either
Laramie or Arapahoe were inconclusive because core samples from these shallow units were
too oxidized to yield satisfactory results.
The third objective was to use the plant microfossils to determine if any of several
calcareous siltstone beds identified by the well logger from core could be useful for
stratigraphic correlation of the wells. Wells #40591, #40891, #41191, #42892, #B217489,
#B217689, #B217789 and #B218589 contain one or more of these beds. Tables 1 and 2
show the occurrences of various pollen, spores, and dinoflagellates along with the calcmous
siltstone beds in each well. Selected pollen, spore, and dinoflagellate taxa from these eight
wells suggests that the calcareous siltstone beds may not make good stratigraphic markers.
The palynological data suggest the following correlations. In well #B217489 the calcareous
siltstone bed at 69.8’ is designated as marker A. In the nearby well, #B218589, there are
three similar beds. The upper unit at 72.7’ is designated as bed A, the one at 170.0’ as bed B, and the one at 255.4’ as bed C. Table 3 shows a composite section formed by correlating
and combining the palynological data and depth information from these two wells. In Table
3, sample depths from well #B218589 are accompanied by the suffix (b). This composite
section serves as a reference section for trying to correlate the calcareous siltstone beds in the
other wells. In well #B217689, the palynological data suggest that the calcareous siltstone
bed at 82.6’ correlates with bed B in the composite section. Many of the taxa that occur e Palpology of the Uppamost Laramie Final Repart April% 193 0 above the calcareous siltstone bed in this well do not occur above bed A in the composite section, but do occur above bed B in the composite section. Similarly, the calcareous
siltstone bed at 114.8’ in well #B217689 correlates better with calcarous siltstone bed C in
the composite section. Unfortunately, the lithostratigraphic data (see Appendix 1) suggest that
the upper calcareous siltstone bed at 82.6’ correlates with bed A in the composite section,
rather than bed B as the palynological data suggest. Similar discrepancies between the
lithostratigraphic data and biostratigraphic data are evident in several of the other wells (see
Table 3). If these calcareous siltstone beds are to be used as stratigraphic markers, it will be necessary to resolve the discrepancies between the lithostratigraphic and biostratigraphic data.
In reality, neither of these methods can stand alone to provide the necessary stratigraphic
resolution to solve these discrepancies. Therefore, the calcaous siltstone beds should not be 0 used as stratigraphic markers in the well cores until these discrepancies are resolved. One of the most common uses for palynology is relative age dating. Several of the
taxa found during this study have reported occurrences in the literature that range from
Campanian to Maastrichtian. These taxa include Integricorpus rigidus and Liburnisporis
adnucus. Other taxa, such as Thomsonipollis magnificus and Tripunctisporis maastrichtiensis, fmt appear in the Maastrichtian and range on up into younger strata. Some of the other taxa
have longer stratigraphic ranges and are less useful for estimating the age of the rocks in these wells. By their overlapping stratigraphic ranges, the above mentioned taxa indicate that
the age of the rocks in these wells is at least Maastrichtian. This estimate can be refrned
even more by noting the absence of significant upper Maastrichtian taxa (Nichols and
Jacobson, 1982), such as Aquilapollenites delicatus vat. collaris and Wodehouseia sp-.
Rocky &ts Plant mar Gok,Colorarb 10 The lack of upper Maastrichtian taxa suggests that the rocks sampled from the seven wells in this study are most likely lower to middle Maastrichtian in age.
Palynology of the Uppennost Laramie Final Report and Arapahoe Formatiolls athe April34 1993 Rocky Flats Plant near Golden, Cobra& 11 0 5.0 CONCLUSIONS
Based on a combination of lithologic and palynological data the following conclusions
are made in this study:
1) Most of the Laramie Formation core sampled in this study represent brackish-water, lagoonal conditions. The notable exceptions are the two deepest samples in well #B217489 which contain no dinoflagellates. However, when this well is correlated with #B218589 to form a composite section (Table 3), there are dinoflagellates present below the
two deepest samples from well #B217489.
2) The LaramidArapahoe contact probably does not occur within well #B217489. The
contact probably does occur within well #00291 somewhere above 57.6’ and perhaps deeper 0 than 35.0’. Otherwise, the biostratigraphic data from the wells studied, suggest that the Arapahoe Formation is thinner than previously thought.
3) The calcareous siltstone beds in wells #40591, #40891, #41191, #42892, #B217489, #B217689, #B217789, and #B218589 have questionable utility as stratigraphic
markers because of the different Stratigraphic occurrences of selected plant microfossils
relative to these units. Exception to this recommendation could be justified for wells that
occur in close proximity to each other, such as wells #B217489 and #B218589. These
calcareous siltstone beds may represent several fluvial horizons with limited lateral extent that
were deposited at different stratigraphic levels within the Laramie Formation. It is likely that
the calcareous cement is secondary and was precipitated from carbonate saturated
groundwater.
FiReport andhapatmxIhnationsatthe April 30,1993 Rocky Flats Plant near Golden. Colorado 12 i8 4) The Laramie Formation represented in this study is lower to middle Maastrichtian
in age.
e
Palynology of the Uppermost Laramie FiReport e and ArapaboepormatiOns at the April 30, 1993 I" Rocky Flats Plant near Ooldeo, Colorado 13 6.0 REFERENCES CITED
EG&G, 1991, Geologic Characterization Report for U.S. Department of Energy, Rocky Flats
Plant. July 31, 1991.
EG&G, 1992, Phase II Geologic Characterization - data acquisition, surface geologic mapping of the Rocky Flats Plant and vicinity, Jefferson and Boulder counties, Colorado. March, 1992. Nichols, D.J., and Jacobson, S.R, 1982, Palynostratigraphic framework for the Cretaceous
(Albian - Maastrichtian) of the overthrust belt of Utah and Wyoming: Palynology, v. 6, p.
119- 147.
Spencer, ED., 1961, Bedrock geology of the Louisville Quadrangle, Colorado: United States 0 Geological Survey, Geologic Quadrangle Map GQ-151. Weimer, R.J., and Land, C.B, 1975, Maastrichtian deltaic and interdeltaic sedimentation in the
Rocky Mountain region of the United States: Geological Association of Canada,
Special Paper Number 13, p. 633-666.
OTHER USEFUL REFERENCES:
Drugg, W.S., 1967, Palynology of the upper Moreno Formation (Late Cretaceous-Paleocene)
Escarpado Canyon, California: Palaeontographica, Abt. B, v. 120, p. 1-71, pl. 1-9.
Farabee, M.J., 1990, Triprojectate fossil pollen genera: Review of Palaeobotany and
Palynology, V. 65, p. 341-347, pl. 1-2.
Farabee, M.J., and Canright, J.E., 1986, Stratigraphic palynology of the lower part of the
Lance Formation (Maastrichtian) of Wyoming: Palaeontographica, Abt. B, v. 199, p. 1-89, pl. 1-26.
OTHER USEFUL REFERENCES: (continued)
Farabee, M.J., Vezey, E.L., and Skvarla, J.J., 1991, Systematics of the genus Striatocorpus
(Krutzsch 1970) Farabee et al. 1991: Palynology, v. 15, p. 81-90, pl. 1-3.
Funkhouser, J.W., 1961, Pollen of the genus AquiZupoZZenites: Micropaleontology, v. 7, no. 2,
p. 193-198, pl. 1-2.
Jameossanaie, A, 1987, Palynology and age of South Hospah coal-bearing deposits,
McKinley County, New Mexico: New Mexico Bureau of Mines & Mineral Resources
Bulletin 112, p. 1-65, pl. 6-17.
May, F.E., 1980, Dinoflagellate cysts of the Gymnow,Peridiniaceae, and
Gonyaulacaceae from the upper Cretaceous Momouth Group, Atlantic highlands, New
Jersey: Palaeontogmphica, Abt. B, v. 172, p. 10-116, pl. 1-23.
Srivastava, S.K., 1966, Upper Cretaceous microflora (Maastrichtian) from Scollard, Alberta,
Canada: Pollen et Spores, v. 8, no. 3, p. 497-552, pl. 1-11.
------, 1968, Reticulate species of AquiZupoZZenites and emendation of genus Mmcicorpus
Mtchedlishvili: Pollen et Spores, v. 10, no. 3, p. 665-699, pl. 1-7.
------, 1970, Pollen biostratigraphy and paleoecology of the Edmonton Formation
(Maastrichtian), Alberta, Canada: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 7, p. 221-276, pl. 1-4.
------, 1972, Systematic description of some spores from the Edmonton Formation
(Maastrichtian), Alberta, Canada: Palaeontographica, Abt. B, v. 139, p. 1-46, pl. 1-35.
Palynology of the uppelmost Laramie PiReport andAIapah~~matIhe April 30,1993 Rocky Flats Plant near Gokh Colorado 15 a Tschudy, B.D., 1969, Species of Aquilapollenites and Fibulapollis from two upper Cretaceous localities in Alaska: U.S. Geological Survey Professional Paper 643-A,p. A1-A15,pl.
1-16.
--I-----, 1973, Palynology of the upper Campaniaa (Cretaceous) Judith River Formation,
northcentral Montana: U.S. Geological Survey Professional Paper 770, p. 1-42, pl. 1-
11.
PALYNOLOGY PLATES
FERN SPORES
PHOTO #: NAME
1. Cibotiidites bettianus
2. Cicam.cosisporites austraiiensis
3. Deltoidospora mesozoica
4. Gleicheniidites senonicus
5. Ghoshispora bellu
6. Kuylisporites scutatus
7. Laevigatosporites s p.
8. Liburnisporis &us
9. Retim'letes mirabilis
10. Triporoletes novomexicanus
Palyaology of the uppermoat Latamie and~Formatiooeattbe Rocky Flats Plant oear Goldeo. Colorado 16 @ 11. Triporoletes reticulutus
12. Tripunctisporis maastnchtiensis
13. Trisolissporites monmensis
14. Umbosporites callosus
PALYNOLOGY PLATES (ant.)
GYMNOSPERM POLLEN
PHOTO# NAME:
15. Callialmporites dumpieri
16. Corollina torosa
17. Gnetaceaepollenites eocenipites
18. Equisetospontes volutus
19. Rugubivesiculites sp.
20. Tarodiaceaepollenites sp.
ANGIOSPERM POLLEN
PHOTO# NAME:
21. Aquilapollenites aptus
22. Aquilapollenites bertillonites
Palplogy of the Uppamost Laramie FiReport andArapahosFormotionratthe April34 1993 Rocky Flats Plant mar 00- Colorado 17 23. Aquilapollenites striatus
24. Aquilapollenites m*&tus vu. variabilk
25. Aquilupollenites turbidus
26. Integricorpus rigidus
27. Mancicorpus calvus
28. Pseudointegricorpus clarireticulatw
29. Erdtmanipollis procumbentifonnis
30. Plicapollis serta
31. Proteacidites thalmMni
32. ThomronipoUis magnificus
33. Margocolporites sp.
PALYNOLOGY PLATES (conk) ANGIOSPERM POLLEN
34. Rhoipites globosus
35. Cupaniedites sp.
36. Retitrescolpites angulolum'nosus
37. Liliacidites leei
38. Quudripollis krempii
PALYNOLOGY PLATES (conk)
Palplogy of the uppermost Lpramis andArapahoeF4mathmatthe Rocky Flats Plant near GokW colotado 18 DINOFLAGELLATES
PHOTO# NAME:
39. Chatangiella sp.
40. Cyclonephelium distinctum
41. Dinogymnium acumhatum
42. Dinogymnium digitus
43. Dinogymnium euclaense
44. Isabelidinium sp.
Palynology of the Uppermost Laramie FiiReport April 30.1993 and Arapahoe Formations attb Rocky Flats Plant ear Goklen. Colorado 19 2
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APPENDIX 1
N
TWO ATTACHMENTS FROM FRED GRIGSBY RE: POTENTIAL SUBSURFACE STRATIGRAPHIC MARKER BEDS
Palynology of the Uppennoat Laramie FdReport and Arapahoe Formations at the April 34 1993 Rocky Flats Plant near GoW. Colondo ATTACHMENT 1 MEMORANDUM
DATE: June 24, 1992 TO: Laurie Host FROM: Fred Grigsby RE: Potential Marker Bed, Rocky Flats Site
Core logging has resulted in the identification of a calcareous siltstone bed that has been found in boreholes site-wide. This bed, although relatively thin, appears to be consistent in lithology and infed lateral extent and may be a mappable unit that could be helpful in defining the suucture of the upper Laramie Formation underlying the Rocky Flats Plant.
This unit appears to be the uppermost calcareous siltstone of three neariy identical beds. The consistency and lateral continuity of the lower two beds has not been established, primarily due to their depths. The second bed has been found in at least twelve holes, while only four boreholes were deep enough to intercept the third bed.
The thickness of the top bed varies from a current maximum of 2.7 feet in hole 40392 to a minimum of only 0.2 feet in holes 43892 and 44192. While these thickness are not especially favorable, it should be noted that in hole 43892, which was completed this week, the bed was intercepted at approximately the depth expected. Also of interest is the fact that an identical bed was found in an obvious fault at a depth of 13 feet below the top bed. This hole is located in the PA at Rocky Flats.
The calcareous siltstone marker bed has been recognized in 19 boreholes at depth ranging from 45.8 to 199.0 feet. A list of boreholes containing the potential marker bed is enclosed. When the ground level survey is completed for these boreholes a structure contour map of the calcareous siltstone bed could be constructed. Such map may reveal that the siltstones’ present configuration is a result of origmal depositional relief, folding of the western flank of the Denver Basin, or possibly fault offset beneath Rocky Flats Plant.
This represents only a preliminary evaluation of the logging projgam. Connie 3Gdge has been aware of the progress of this program, and has requested a copy of this memo.
cc: Connie Dodge EG&G Rose Zeiler AS1 Dm1Dunn AS1 Potential Calcareous Siltstone Marker Bed
11 Borehole Number EG&G Number 1 Bed Deprh I Bed Thickness\/ II 40392 BHZ-43 53.0’ 2.7‘11 40592 BHZ-1 1 123.0’ I 1.5’ I/
41 192 BHZ-45 45.8’ 1.O’ 4 1392 BHZ-17 I 129.9’ I 0.4’ ll I 41702 BE-50 50.!’ 2.0’ I 1 41892 BHZ-5 1 152.2’ 1.8’ II 41992 BHZ-49 I 160.3’ I 1.O’ I1 I I I It I II 42092 BHZ-48 98.9’ 1.1’ 42192 BHZ-47 156.8’ 0.7’ 42392 BE-6 199.0’ 0.8’ ll 42592 BHZ-9 122.2’ 0.8’ I II 42692 I BHZ-12 106.3’* 1 1.4’ II I I I 11 42892 BHZ-54 121.2’ 0.9’ I 43292 BHZ-53 103.6’ 0.5’ 43892 BHZ-40 59.1’ I 0.2’ 1 43992 BHZ-41 80.9’ 0.6’ I 44.092 BEZ-42 91.0’ 1.4’ 44192 BHZ-52 70.1’ 0.2’*
* Best correlation -
NOU 26 '5; ;%:25 473 P02
______~~ ~~ I I 120.3' I 5976.4' I 0.15'
B204089 I 5877.6' 1 205.8 I 5671.8' I 0.2' II c- . -.
287.6' 5631.4' 2.0' B317189 5725.0' 77.5' 56473' 0.8' 1735'* 55513' 1.55' 184.6' 5540.4' 0.6' B217289 5777,s' 1092'- 5668.3' 0.4' 1723' 56OS2' 0.3' 210.8' 5566.7' 1.6. B21.7489 - 5%13' 69.8. 5891.4' 0.2' * Indicated marker bed with overtying claystone ** Possible repeated section of marker bed with upper claystone at 1092' and 210.8'. Possible fault indicated at 1723*, ont half of core calmus siltstbne and one half claystone (70" + fracm). APPENDIX 2 e LITHOLOGIC WELL LOGS
Palynology of the Uppermost Laramie FdReport aod Arapaboe Formatiom at the Apnl341B3 Rocky Flab Plant near Ooldeo, Colorado 0.41 n.4
Silty Cloystore uith SORSond sand percentage wies G iscl qe110 7R 7/41 to mod yellcuish brcwn 110 fl 53 Sone pole ye1 lacish bcun mtt I i Urconsol , wet ad sticky Cmtoins so7 tered 'lo jR Siltstone6121 ebbleshmutite stoiffi lto 1 25 in I Smd dl sorted !h-oqulrr to sutrmmded Oucrtz 101( smq 78 cloy, 1R silt
6.M h t
!
I
I j I EW Ria Eeolwist; --R.1 h. Mle Filled withbentmlte grM ad Mm 10/4/91.
SILTY aiisimE PKSIBLE AUT ZOK with sone Sold (he o m n.¶
f - /--/- 7-7-' in sard! intervok qurrtz Ch-0 uIr, v f KII - - /-- /- red 7-7-- scrted Sandy side 1511 smd, 2591 silt,?B cloy krsardy - -/-- /- side 201 silt, 801 cloy 7--/-- - - /-- /- 7--/--/SI111 CIAISIN SI I ty Cloystone light bromish g 15 !R 6/11 in upper 7-7-- half d iniervol md doh eilowish1 roin I10 IR 4121 in - - /- - /- lower holf PRM1IN[NI FRdIUK with kovy fe ninerolizotion 7--/-- - - /--/- Imd brow 15 YR 9/91 md dah yellowish oraye I10 fl 7-7----- bl6lI on iow Frocture plones irociure ongle opmx 60 a w(D * I +a W2 w>zw 00 a (Lo mc ww&a 0
Q n.4
7--/-- - -/-- /- Sllfl UAISTONE: Si I Clo stone with trace sand. Orrk ye1 lwish brain 7--7-- I10 R 1 pd. uncmsul. very noist, - - /-- /- !i41 sticky. Consol. 7--/-- Cloystone mal. inhted. tvidence of to ue sbing - - /- -/- dlring 61II iq. Sold fractim pred. cpr '$ z, v.f sdr -7--7-- - - /--/- o ltr tomylor. 7-7-- (Ysmd, 28l silt, 67% cloy. - - /-- /- 7--/-- - - /--/- 7--/-- - - /-- /- 7-7-- --/--/- 7--/-- - - /-- /- 7--/-- - - /-- /- 1.N h.i 7--/-- - - /--/- 7-7-- P--- I==__----- CLAYSTONE: Cloystone uith sone Silt md trace Sod. Orrk yellwlsh _---__--_------_------brum I10 IR 4/21 to 01 ive goy 15 I 4/11. txtenstvely __------froctlred by,&~II iq. Cloy inbrated but nod. frirble when _------dmp. %wring rubabl occurs ~longSI Ity iniervols. ------i ------koce of sod, R!51 SI~~ >85I day. ------_------MRE: recovery. :--
- . .-. ..- . - . .. ._ ...... - .. . -. - . .. __ .... - -. - .- . . -. _. . ~...... - . . . ._. .. - . . .. . _. ..-Y
PEHCClll RECOVERT
P REcnVEPrI IrIlERVAL
11. I * 1 I DCPIII If-l 1
'= I 4=z E
PCIlCElll RECOVER1
8
-- ze E..
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! 4 0 AISTONI.: 'Si-- Itv.'. Cloystone. Sae os obove \reference intervoi 94.2' t
I
j --/--A -/--/-- j NO %RE: NoToto1 dril d depth = 100.0' 1 1 I L I 4 ,;Tu: 3N
iu? , 1 1
1
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i 1 i F I I n I ! i ! ! I I u i P i c ! I ! n
I 1 I 2311 armel. 371 smd. >#I silt, clw. J' (2% 1 Coliche wiih rove/ and Ihite with !Y CALIME bed cloy closrs IN1 F I ight 01 ive gray 1 6/11 cloy closts n (5 NO MFtE /lo Recuvery
0 fl E- m Son$ Cloy uirn sme Silt OM troce Grovei ;ole yellowish brom i10 YR 6/21 to I iohr olive way i5 76/11 HtIh dmdt @ 'J very ple ororqe 110 YR'8121 colckeous (col tcine) intervols r- fled plasticity 1-200 Frocrionl Scnd pred sub-romded, 111 quortz ooorly grdtd Troce quorrzite pebbles lop ox 112 in 1 cloys pwo indlroitd Fred bodly broken Ery hiahl coicmous Htrh severol col tche cesRnied1enrickd in- m .m tei'vo !s Possible Cloystme clost OT bwlder ot opprox 8' E- Troce grovel, 301[ smd, (101 si It, cloy ffl >60I
I ! ! E- jn ! E- I n
I i (4 -m I r- NO ME No recovery I n I ! rn 1 I I ~ Smdv Cloy ~iihme SI It ord irate Grovel. Sax os move Ire6rexe intervol 6 0' to 9.5'1 excepi intermixed with clasts of Red. ,goy iffil cloy owone lcry quartz1 te hble lm ox. 1.75 in.]. Also sme rpyisin crmy 110 7R ?p141 ooiB ling (fel on dost surfcces and on sone smll froctres. Top of intervol less colccreous thn iniervoi fron 6.0' to 9.Y.-hmt of calccreous ceraeniiy decreases twcrds bot-
6.1h.0
i
w10191. . iw id i5 L-l- SI +a3c 00cw
40- - - /-- /- 7--7.7-- - - /-- /- n 7--/-- - - /-- /- cn 7-7-- n - - /-- /- 9 1- 7--/-- - - /-- /- 7-7-- 1.m n a - - /-- /- 7-7-- - -/-- /- 7--/-- 42- - -/-- /- 7--/-- --/--/-
I 7--/-- I - - /-- /- 7-7-- I - - /-- /- 43 7--/-- 7-k:-SIlTY ClhYSTONE Silty Cloystone uith troce Sard [xtensive Fe Oxide - - /-- /- minerol izot ion Pale el brum 110 YR 6/21, very I 7-7-- lowish ple I - - /-- /- oqe(10 M1 8/21 oldyl I t olive goy 15 7 6/11 with by I 7--7-- drk ye1 lowish orolge I10 tR 6/61 fe cooting old stoini - - /-- /- 44 7-7-- ttrougLlout intervol Extensively disturbed ond fructlr 3 - - /--/- bedditq irdicoted Sone lenses of discmtiruws v f 7--/-- Sold IS I - - /--/- Soldstone awrtz, sh-urgulr to sub-rod 1 7---/--- sorted Thickest int'ervol IO 9'1 ot 50 6' 51 0' - /--/- to 1 -7--/-- tlres extensive No evidence of SIickeffiides nost con- 45 - - /-- /- sistent Reosuroble frocture ode is 30 dqrees Core 7-7'-- - - /--/- SI~tly day Vmes frm md ~ellcenmred to fridh ,I I 7--/-- lit it looy vmscoraidermly but hecmes more consistent 'I --/--/- below 0' depth Crbn vories Iron some to obuldt 7-7-- 5r 1 - - /-- /- Uoody froyenis foirly comm Possibly some blrruw costs i 4: Trace of sad, si It, cloy :,i 7--7--~ - /--/- >20% (80% '11 7--7-- 1: - - /-- /- ! 7.m n F r 7-7-- L - - /-- /- n 7--/-- 4i - - /-- /- i -7--/-- - -/-- /- ! 7--7-- D ! r --/--/- ! -7--/-- F - - /--/- I u1 I 41 7--/-- 1 - - /- - /- I 7--/-- - - /-- /- I F 7-7-- ! -i - - /-- /- 1 t- Ul. 7--/-- - - /-- /- I 4' -7-7-- I - - /-- /- 7--/-- I 10 - - /-- /- i P i 7---/-- I t- - -/-- /- \ ut 7--/-- , !O 5h I I ! iii
5 1-
52-
53
I
I 54
I I'! I 55
1 r I n 5E .I
F ! 1 c n 5i
m m f 111 51
f m f 111 5
10 m F ul 6 mnu
CLAYSTONE Cloystone ?red bromisn my (5 YR 4/11 wiih sone dorc yellowish oro e (10 TR 6/61 Consisiencv of stidy plioble cloy uiih clos1 s of idlroied cloystone l?ossibk 8reccio Zone1 Rmdam mineralized froctures in sene intervols In- tavol damj broken, sticky Some corom dispersed tkcu$- out interhl >FIX clay
I iI 'I jj
1.111.1
2.N R. U
PERCENT RECOVERl
RECOVERY/ 8 INTERVAL
on run I FT I oEPwIFTI
.- 0
I I
1 8 1-
i 1 82-
1 i n 03 Cloystone with troce Si It 01 ive roy 15 Y 4/11 Sane os above except 511 htl me day !li$tl U sistenc o s frioble -I tbd ?Iightly Or 110 IR 6/61 iron staining and possible SI n 84 high mgle, irrq frocture lunoble to neaslrel Iron stoining olso in mnemffi micro froctlres Troce si It tl-3 SI It, t/-% cloy -I 1 c wi th troce SI It Grades From 01 ive qro 15 7 4/11 n Cloystone 85 at very too of intervol to olive block 15 1 2/11 !o bromish block 15 YR 2/11 lost 3 5' ~oooruxi or' iniervd Entire
intervol is do ~ massively bkaded, SIidnrly to mal fri- 0 Dark oronoe iron sroining in -I oble ye1 !owih (10 YR 6/61 t- irrqulcr fractures ond irireynt lnoit les in top opprox n 86 - 3 9' of intervol Some oossible slickensides in the irreg froctlres Iopcrox 84 03 At ooprox 87 0' intervol be- comes mcre cdmmoceous locolikd cool sem ot oppfox F 0 87 4' At opprox 90') intervol is bromish black %ne to t- otudt crrbomcews mteriol and cwl No opprrent iron 111 stoinino OT bedding 81 +/-SI silt, tl-951
ID 0 r. r. 111 8t i- .O b 111 8'
Ill 4 P 111
I !VlOR1.
1lh
111:
ll?
113
11y
I- I 1: I 115.
I- I I 1 lib-
n 0 n. 117:
D- c 9 -. - . - . . d"rees. _ . - . - . . n - . - . - . . smd, 11s- 8 261 si It, 3% cloy. 1.-. -. f SfflOY UAYSTONE: Interbedded Smdv,Clavstone os move ma bloyey Smdstone _ . - . - . . F- with mt Silt. I~IVEyo! ij i Yll io ii i olive g~y F 15 Y 6/11, Smd v.f .g.] nod. to we1 I sorte T shqul~ 10 111. -.-.- to sub-romded. Visuol orosity lo~[in cloyl, to d.!n 11y Smdstone. Hod. to 511rl tly frioble. ,hint bedding lonim- e _ . -. -. . tions visible, hriz., ihin,l(l Ipm. thickl. blp. Trace to in thin 10- .-._.- sae wrbmocmus moterial fropenis ord h mm. thidtl In: ((1 111 461 smd, +/-61si It, tl-981 cloy. 120- -4- rK =E i5 zw Y> ww DU SI 00 ow 3- zo oc +h ww uz EW LU zn 00
.----- ,-,-:'SI11-/--/ UAlSTIHE Interbedded Silty Cloystone d Cloyey Siltstone 111th sax sad li$t goy 15 1 6/11 to olive g 15 Y Vll . 1 -'- olive ,I Oistinct wlcwm zme Thin1 Ioinoted I! M I, SMII -/--/- /--/-- sale crpss loination (ripples?! Trm cwh
--J CMKY SMD!lOM Interbedded Cloyey Sondstme old Si Ity CI stone (Prtd ! Clayey Sandstme) Light 01 ive groy 15 Y 9/I1 to 01 ive , bld 15 l 2/11 Sold v f g I rod to dlsortet sh- rded to sub-mylor lonimtions os otuve AMt ccrhceous mterioi in last 0 2' cf interval 261 sold 30% silt, 4% cloy
i ~ ! 7--'-- "-,- /I ! r - I -- i -/--/- i 7-7---- I ,j -- - CLAYEY Sh'/~1OM:hyySodstone with me Si It, light 01 ive g !5 7 6/11. i . .. -- Sold v.f.9. to f,g. nod. sorted, sh-0 ulw. T, oint lm- 1 - --.. imtims visible. hew horiz., acre mq'g ed loinations from - center to botton (bedding 0 ie 10 to.20 deyeesl. Tmce --.. i - to sone cwbamcears mterioY in bedding lonimtims. Vis- I --.. uol pcrwity loy 10-301. Beam ~recwbomcews fron i ..- center to passible cross beddiq --.. botton. Faint ot opprox. - 30 degees. --.... 74 sold +/-61( si It, +/-2oX cloy. ..- --.. ..- --.. ...- --... I -I I I
I i I
I I
ii i i I I :-'--': /--/- SILTY UAYSTM: SIlty Cloystone uiih troce Sard. Olive roy (5 1 4/11 to - - /--/- 01 ive blod I5 Y 2111. Viswl pros~ty 'i ow 61. SI ightly 7--7--- - /-- /- friable, dl idratid. Ieddirg. irreg. bre oreos of _/--/-- very thinly loirmted l
c- .N . lo: 111. 167:
a- .N '. lo' 111: 168:
b .N . lo: 111. 16[f: 7-7-- --/--/- 7--7-- - - /-- /,- 7-7-- - - /-- /- -/ - -/ - - - - /-- /- 7--7-- - - /-- /- r 7-7-- u - - /-- /- D 7--/-- n - - /-- /- 172 7-7-- - - /--/- 7-7-- il - - /- - /- N 7--/-- 10 - - /-- /- in 173
1. I I. 174-
I- t- 1- 1 175-
I- d- o: n 176
r 4- D n 177:
m 1- u,: m 178-
f .1 lo: 111 17‘f
9 - -1 lo: ffl. 180- C a 3 ?- id cc W -l I: Io 0
m R.!
I)
90 n.5
Toto1 Drilled Depth = 186.0'
I)
I' f 1
ill R.@
10 n.u
sone Sd Overoll, sme os atuve 13 1' to 14 6'1 sand to 10-1511, // ,.m 15.4 - - /--/- v.f.g., sh-angule tq well sorted 7-7-- llsld 2511 silt, %"411 cloy. --- /- - /- / .- -/ '- - - /--/- -/--/- - - /-- /- 7-7-- - - /--/- 7-7-- - - /--/- 7-7-- --/- - /- 7-7-- - - /-- /- 7--7-- --/--/- 7--7-- - - /--/- -,- -, - -, Clo stone Sme os obove Irefererce iniervol from 20 2' to 20 ['I hmruus minerollzed, heold froctlres with me trace of obsclred SIidensides Frocture orgie DP~MX.1 degrees
txz-xz-EJ _ --/-- 7-7- 'I SILT1 RAYSTONE Silty CIOy510R wirn troce 2nd Hed OT lffil, yellowish - - /-- /- oroy i5 7 8/11 nirh groyi$ oronge 110 TAYi41 loninatim -7-7-- - /-- ,/- Entire iniervol cross-lminared Soft sedinent deformtion, 7--/-- Iminoiioffi dip ot opcrox 10 dqren Several healed - - /-- /- froctlres Lower intrvol yoy cloystone Core 7-7 -- pd 6 mod frioble frocture OM/~Saoorox 30 deorees od a~-
\
frioble when fresh ldmpi >IIcloy NO MPLE No kcuvery W m a w C W Sa 30:
I- ! 31{
Io. .-I . t 3:
0. vols and vrriotims in ommts of cort~m -4 . >951cloy. t 33
I- I 3’
I. i- ! 3‘
J. 1 36
1. 1. ; 37:
a. ; 38.
0. ! a . t 3‘
0. a . 1: : 4c _------/-- /- -/ - 5' - - SILTY CLF~TSTONE: Siliv Cloystone uin Some Sono kd. dork yoy IN41 uith ,iiah'i ". orov"r I iN71 sondv lenses or tnierbedded si Ity sandstone. /// , ~ :i.ies irom nod Frihble to fricbie %no is v '1 o iiell --,,--,- -/--,-- med, suio-onouiar oporrz irw om mintrols Md mico,
, i I' ::me iominor sfrucrure Hirh sone cross IorniMriOns Some //// iiseminored carions, btcomes sore cloyey ot bottom wirh ----_------538e cloy CIOSfS _------I!% 291 si It, 601 cloy _------sand, _------Cloystone Some si igntly si I inrervols ond interbedded ------4 CLAYSIONE ty _------cioystone with some silt olive aroy 15 'I 4/11 to olive ---- __------block 15 Y 2/11 11th some light olive oroy 15 Y 6/11 silty ------zmes Core surioce rexture varies Frim smooth to crinkly ----_--- _------Crrbon generally moo abundt Some lominotions ond in- _------_--- dicoted soft sediment deformorion Core mod indwoted ------si i$tly rrioiile to mod Frioiile in si I intervals io ----_------ty ------itfined beddino, no apparent frocrures _------_------?Or( to 95x cloy k 1n tn .m
9 n n
’n m n
T 1 n n
CI I m m
N m 0 fl.N
1 I m m
0 1m m
c m m
m
L^ n . tn B
aw r 2
i
!
I
i j i i i interval Possible lminrr structure in sone inter&" Core surr'cce textwe romp from snmth loll cl stone) to crirkly llonimiims ?I Cire brdm dlring 617 11 ord ~cyimj /lo positive iiniiricoiion i frociwes Tore dense, nod indwoted, daw, sI ighrly fr idle Ihm fresh1 No mwrent beddim )%r'cloy
1
I I , ! !
j ! I I I --_ -”-/-’-/- SIlII RAYSTONE: Si I ty,Cloystone. ild. dark IN41. PRd. cloy~t~ne~ 7-7-- interbedded r,lmincr 19 t olive amy 15 Y 6/11 silty - - /-- /- uith 96 7, -I //- -, - clovstone. Both thicker iniemedded miis md thin Iminr - - /--, /- ti& Interval extensively braken in /ow Mf Scue in- 7-7-- - - /-- /- dicotions of breccia heroll cure nd inhted old 7-7-- cenented tbd friable in mrt silty intervols, slightly /- /- - - - in 7-7-- frioble mre clo ey beds No ypnt well defined be6 - - /--/- din plm Sone rond ablndi carbm 7-7-- cloy - -/-- /- )I! Silt, (70% 7-7-- - - /- -/- 7--7-- - - /-- /- --/--/-/SILlI7-7-- UAISIN: SIlty Claystone. Sme os oixve except well devellpedrip- 7-7-- ple nrrkgl cross lanimtims in upper pcrt cf ccre, with / /. - -/-- /- well &fined amtoct with claystone rudirg datrnrrd to 7-7-- pred. claystone at both of intervo9 . Sone to nod. M. --/--/- -, ..- -, -- CCrbon. >3oX silt, (70% cloy. SILTY UAISTONE: Silty Claystone. Very sinilor to obve except for silt- stone. Sine to nod. obmdt. curbm.
I i I,
I ! I 1 i I I
jI I
RAYSTONE Si I ty Cloysron ,:yllL y,uy ti 1 6/11 to 01 I oy i l5! 4111 \lories ircn vtry sill to siigiiiy silty he I well develo d ri le mcrk CTOSS ionimtims Interbedded cloyston; arif 103 to 103 2’ Host I itholcq variations Ii grodotimol Overall cre md irdwoted, si 1tier intervols 4 Hell ceoentd Ccre da , nod to slightly fridle No y- i pmnt bedding OT identig! iable frocturirg Truce to md aburdt ccrbOnth* (I-%SI It, >/4l%illy .- I
c CT
..
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A' ' ' " " ' ,A' ''. " " d3""'""rn"""'" I I, L A""'"'' ...... CL ''.'"'T'A'','T'."d- . 0, 0, 0, z3 0, E: = s z E: ObSS 6ESS BE! LbSS 9bSS SbSS bbSS EbSS Zb5S rbss s s c < , a
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d ddm m 11/01/91.-- _I re
l!t
1 ; 111-
D n.oE
112-
i 113 i
I! 114-
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.ill 15.1
I I I 116-
I i i I 1 ; 117:
I I I I I i 1
I/ 1 11871 J i !i I 2.m R
m /--7-J -/--/- /--7-- -/--/- /--7-- -/--/- /--7-- -/--/I 7--7-- I/- /- - - - 7-7- CMTSTN Cloystone Sae os otnve lreference intervol 125 6' to 127 3'1 >%Icloy ,I I--- -. --/--./Jc Si .I' -/ - ;/ - - ,1117 CLAYSTONE: It Clo stone. Sone os above lreference inter< I - - /-- /- to di5.6' . -7-7-- - /--/- >a1silt, +/-80% cloy. - / '- -/ - /- /- I -- - I 7-7-- - - /--/- I - -, - - -/___----: i _-__--- CLAYSTONE: Clo stone. Srne os ohve [reference iniervol to ! _-__---_ 125.6' ldl' 1 . I >%X cloy. SILTY CLAYSTONE: Si It Clovstone. Sae (IS omve !:eference interval 129.3' - - /--/- I to Iz 5.6'1. 7--7-- I - - /--/- >8l1silt +/-8011 cloy. I 7--/--- NOTE: O.? extro recovery. ____--__--_ core I ---_-- --- CLAYSTONE: Olive bled I5 Y 2111, dmp in uphalf. I >---_-__---- Cloystone. vey i _-__---__--_ Entire intervol sti& md pliable. ~~reccrbon. I ___---__-__ >951cloy. i _-__--- i -/- /-/-: SILTY UAYSTME: si !ty Cloystone Hi th trcce sad. 01 ive qroy 15 1 4/11 md I -7--/-- - /-- /- ive block I5 i$t o/ ive hxx~ j 01 2/11 with I goy 15 Y 6/11 -7--/-- ad lminoe. Sone intervols with trace of sordstcne. In- - - /-- /- tervol gdes from ed. nassive in upper oppmx: 1.0' [sone -7--/-- - - /-- /- lolincr structure1 Bo very lomimr in lour pcriicn of core. -7--/-- Very uel I develmed rippIe.mded Iminoiim fro? 136.8' to - /-- ,/- -7--/-- 141.5' %re phsible sedirent defornation olso indicated - -/-- /- ttrcumaut core. Ccre nod. idlroied, sliqhtly fridle when 7-7--- - /-- /- freii'lslightly dmpl. Cre tends to brea ~longhorlz: -7--/-- lainoiion olmes. No definite Froctlres. No well defined --/---/- beddim pldnes. %re to nod. dbuwt. ccrbon. 41 -7--/-- - - /-- /- Trace Sm >201 silt, +/-801( cloy. -7 - -/ - - ' - - /- - /- NOTE: 0 2!! extro ca-e recovery. ! ! -7--/-- --/--/- i -7--/-- i - - /--/- / - -7 - -- /-- /- 7-7-- - - /- -/- 7--7-- - -/-- /- 7--/-- -- /-- /- 7-7-- - - /--/- 7--7-- - - /-- /- -7--/-- - - /--/- ill -7-7-- - - /--/- 7-7-- --/--/. 7--7-- - - /-- /- 7-7-- s2 __ ......
...... ~ .. . __ ~ -€s
...... ~ ...... -~
PERCENT REcovEar
M 5 23 8 €3 I I I I I I 39 5499 55b0 55bl 55b2 5503 5504 5505 5506 5507 +--A 4 c4 - n c4 c c - -n n - 4 - n 4 0-4 N r ...... -P...... Y...... I...... ,I.- ...... '.P I c L IO w n F a
t-nwJ 01: Y5 a
_____ ......
~ @g ...... - ...... - .- - ...... __
__ __...... __ . ~. --
PCRCEtIl RECOVERT
RECOYEI3I/ INTERVAL CI tone 01 ive yay I5 7 4111 uith light 01 ive p 15 1 6/!kdtli in ~pper6 in of intml ad 110 M17/41!1~~rstd in top 6 in intml beanes sti y mi plioble in Iw er tran d intawl 6 in sli tl pK$i bvbeddingor"pp" ?@Em h >9ox cloy I Silty Cloystone uith trm to me sond pred law structure li$tal ive p (5 7 6/11, 01 ive $0~15 I 4/11 ord me olive lack (5 111 lamime Some sa$ Imim, corpsition 111th I voria hwries fm sax to oburdt hch with cmbmocews der101fdhq ot [p ox 176 5' Idup fro0 181 0' ruder in boxlt NootL rpporentfmtm NOT ~OPm structure vtries frm possible rip$"' e ntrts, to dt Swf iment dd'trmtim Bioturbation ible in sore intmls Possible convoluted stroch, en p"ire interval rad dl in- hated UelI to nod tell mented, nod to sli$tly fri- slightly day frcch qles qrox 0 de
intml. '
e r -2 +a uc zw !A> w> >a *am uim ms 00 ou au u+ r.m RSZIC4llmr ww wz &a an mXETRETIM LMffiT iRmm mm
7--/-- - - /--/- -7-7-- - - /--/- i 7--7-- - - /-- /- ! 7-7-- - /-- /- I - I 7-7-- I - - /-- /- 7-7-- I I --/--/- I 7--/-- j - - /-- /- 7-7-- I - - /-- /- -7-7-- - - /-- /- 7--7-- 1 /- i - - /-- I 7--/------1 ------i CLAYSTONE: Cloystone. 01 ive gr 15 Y 4/11, sticky pl idle, ~ITS -7-7-- - /-- /- out of place. ~~sit~7y Fron Further y hole. -7--/-- cloy. i - - /-- /- >%I I 7-7-1-/--/ SILTY C1AYSTM: Si It Clo stone. Sine os above [reference intervol 173.1’ I 7-7-- to 13.0’ii - /-- /- ~ - >/2llX silt, (1-801 cloy 7--/-- - - /--/- 7--/-- - - /-- /- -/ - -, - - - - /-- /- 7-7-- --/--/- 7--/-- - - /-- ,’- 7-7-- - - /--/- 7--/-- - - /-- /- i 7--/-- - - /-- /- ! 7--/-- --/--/- 7-7-- - - /--/- 7-7-- - - /-- /- 7--7-- - - /-- /- .-e.. 1 7-7.-- --/--/- - 7--/-- - - /-- /- 7-7-- - - /-- /- 7--7--
~ - /-- /- -7--7-- --/--/- 7--7-- - - /-- /- 7-7-- - - /-- /- 7-7-- - - /-- /- 7-7-- !
M i0 '-/-7-' - /- /- *It - - 7--/-- - - /--/- -/- 7,- - - - /--/- 7-7-- - - /-- /- 7--7-- - - /--/- 7-7-- - - /-- /- 7-7-- --/--/- 7-7-1-/--/ SLTr aAYSTm: Silty Cloystone with sone Smd. Liar olive Toy (5 16/11 7-7-- with sore olive groy i5 1 4/11 nottrim. Uel to mcd. well - - /-- /- cenmted, mai. frimle, iniervol yneml ly mive yiih -7 - -7 - -, gmhticnol crntoct with overlying old lnderlving litho1 IC- units. Visui prosiiy
-.-.-.. -,-.-..
-.-.-..
-.-.-.. -.+.-.. -.-.-.. -.+.-.. -.+._.. -.+.-..-._.- -r L !i w a' c n J B t Wc a U
.nnm
7-7-- - - /-- /- SRTY UAYSTOUE SI Ity Cloystone 01 ive black 15 Y 2/11 ord olive groy I5 1 7-7-- 4/11 with sme I i$t 01 ive goy 15 Y 6/11 Iminoe and iwt- - - /-- /- t I irq Si It antent varies Core dry, we1 I 7-7-- ccnsrdembl - -/-- /- mente4 ncnfrioble to slightly hob 1e well to md in- 7--/-- dwded Ccjn vmsfrm sme to md dunit Possible - - /-- /- a /--7- dlkoled tmctwe ot opprox 216 6' lfroctwe mgle - - /- - /- apmx 45 degessl No other froctures pnt Care tends 7--/-- --/--/- to treok olmq Ionination swfoces, Fred 1riz him 7-7-- structure pred cmsisis of silty claystone uith - - ,.- - /- bin@ me silty to sli$tly bntoct with her 7-7-- sod lanime - - /--/- sediments is ydotionol r4u ooplrent don bddiq planesJ 7-7-- - - /--/- me soft sediment dea-mtim iidicoted 7-7-- )io% SI It, (8rn cloy - - /--/- -7 - -/ - - --/--/- 7--/-- - - /-- /- 1.m n.a 7--/-- - - /--/- 7--7-- ! - - /-- /-
I 7--/-- i --/--/- ! 7--/-- - - /--/-
I 7--/-- I --/--/- 7-7--
~ -/-- /- i 7-7-- - -/-- /- i 7-7-- - - /-- /- f 7--/-- 220.8' ot opmx. 45 degrees. frocture shows norm1 fault - - /-- /- 1 7-7-- rsovmt 1na idicotion of notdie displocwmtl. Interval 7-7-- dryJ rod. frioble to Friable in ploces, id. well to well (I i - - /-- /- caented. Sard g., well sorted, sub 7--7-- v.F - - /-- /- srne dad iinerol groins ((1OX1, mx. 7--/-- rntervuls1 1 - - /-- /- I -1 -/ smd 3fi si It, 4ZI cloy. I - - - Zfi \ +a ac zw w> vow> >a au wzow ww uc ha an YII nn
I I I D R.3 i
iI i I1 i i Total Drilled Depth: 223.3'. i! Ii ! I I I l,CRTH 76161 rwm SITEWIOE CASIffi OIMIER ID-I GEOLOGIST WY 1 EiiST i8114L LOCAlOR NUfllER 06 BOREHXE OINT[R IINl 10 013 15 OAT[ 03IlUO 01/091'?2 41 91 il[llPRKS HOIIOH Sfem Alger, Rotcry Core Orill AS1 Geologist f Grigsby Borth.de filled nith bentonite put ond obanrbned on Y11192
+a CjiRf w>zw uo GFU1IN cuww EIB aa oooooo GU Sandy Grovel Niih trace Silt ond clov LiaJht brow 15 8080 614 to 5 YR 5/61 moirix lox oebbli size to 3 in Pred BOO00 i 80000 I thology quartzite, sub-mwidr, uel I groded Sond td I 80000 roded, pred quartz ond feldspor in comer froctim [we '8080 Peldspar and some mico in finer fraction All sorid sizes '8080 pred sh-anguh- !ntervol we1 I oxidized ond le stoined '8080 he1 I ~eotheredl Roots in upper 4 in Non-colccreous, '8080
NO SMITE No recovery
%OB0 GU Sondy Grovel Nith troce Silt ond cloy Some os obove kef- '8080
he' Iorge 3 In. pebble. 5811 grovel, 391 5014 21 SIIt, 11 cloy.
IO MRE: No recovery.
iU Gravelly Sad HI th troce Si It ond Cloy Pred mod yellor ish born 110 YR 5/41 Grovel Dred opprox 0 5 in Nith some pebbles to plus 1 in Pre'd Iithohy uartzite, sub- ongulor Sand Ne1 I graded, sub-ongulor, el quortz HI th some feldspor Intervol #el I oxidized he1I ~eotheredl, non-colcorews LOH plost icity, no prevelent fe stoining 431 grovel, 491 sond, 516 silt, AX cloy
NO SMPLE: No recovery.
c !a! ! I I I I i
I ! I 1 R.4
! I , I !
I
j
I14 I "1. ?OX sand, 201 SI It, IO! cloy Sm Grovel Hotrix mod brom IS 'I 4/41 Grovel well- ora d Hith one Irge pebble (3 5 in 1 litho1 y pred I 9 I dcrk qray quartzite, sub-on lor to onqulor In? ervol ky, I low Tosticity (motrixl, Her I Heotherw I I )fi!yovel, (251 smd ! ! NO MPLE No Recurery j ! I, ! I I I
j !.m R I I
iI >sox grovel, 40l sand, tl-51 SI It, +/-SI cloy
Ih. h ~ AI, O%O%O GW: srndy Grovel uiin trace Silt and cloy . .j above [ref- O%O%O ererce intervol 27.0' to 27.5'1 excebt . iory pebbles O%O%O od one 2.5 in. hemotite ccrlcri.!on.l i vol con sol., O%O%O 0~00,0 51 laht ly q. o~oooo >5O1 grovel, 901 sond, +/-5X silt, tl-51 cloy. 0~00,0 CLAYSTONE: lop of Behk ot 31.3' Clo stone. Ytll~~ish[ray (5 Y 7/21 Hith Iiaht olivtry 15 5/21 in top 0.4' if interval. Some dad yellowi .Y)19.3 oralxle 110 fl6l6l nottl im. foirly snoro color hmge to dcrk'yel hish wmge 110 1'R 6/61 to 33.2' .So% Hn stain- I in this intervol. hlor chonoe to bro~nish,groy15 YR 471 frm 33.2' to 33.5'. Some ciirbon in this intervol, lone ktwn oronge ond bromish oy Cloystones,conststs of intermixed clasts of both., Cloys rone mod. He1 I idlsated, dense, non-frioble. Ori I I ing inouced froctures. >%ICIOV. h NO SAnPlE: No Recovery
CLAYSTOI~E Cloystone Pole yellOHish bro!in 110 YR 6/21 Hith mod obundt dark yellouish OI-MO~110 l? 6/61 fiottling Core .¶ 11.3 extensive1 dr i I I in9 froctuFed Dense, mod induroted, non- friable, 5! ighrly dmp Iod obundt ccrbon, Hith Hell ljreserved leaf in her pori OF intervoi Eeddinq not
1.30 n.:
Cloystone HI th sone SI It ?ark oroy IN31 HI th some i ioht olive oroy 11 I b/ll morrlinaJ Silt content wies frim SI I tfy silty to some silt Entire intervol extensively bro en ond dri II I fractured Cloystone froyents Hell to mod% Hei I idrot Beddiq and frnctrinq corslot be de- ternined Carbon vories fron obundt 11 ignite frogmentsl 0 to some Core voried from non-friable to mod frioble 1.M 11. Entire interval slightly damp. 10-15! silt, 85-901 cloy. 1 r-I
I i I ! i i I i I j ! I i I i I I ! i 1
C' !' m BHM SUI
1
I .- I -. 1 - ... ____--- I--<--- with sone Silt. Olive g 15 19111 to _-__------MISTONE: Cloystone olive i _-___--_---- 2-r-- bld I5 I 811. All else sm os !ove hfirence intmi I _____-_-_--_ --j-46.8' 50.4'1. to I. . --. -.+/-ZOZ silt, +/-!Dl cloy. i _-__--- ' ____---_ with sone Sold. li$t olive yoy 15 1 6/11 7-7-- - - /-- /- !9111. Sone v.f.9. 50-1 .well sorted, 1 7-7-- oprrent b$ding. lights >! /- /- No s - - - mteriol. Slicjtly y T.in ttm- 7-7-- less - - /-- /- - . half 6 interval. 7-7-- 19%sm 241 si It, 5711 cloy. - - --, .,I NOTE: 8.4' extm crre recuvery from 51.9' to 54.0'. - -/' .-/ ,I-'[uKl SU1STOM:Clo ey Siltstone with sax Sard. 01 ive (5 I 9111 to - -// -- !;$t olive gruy (5 !6/11, V.f.9: sm mod. sorted sub- . ,,I,//.. - - -- _.rounded. Troce cwbonace~usmoteriol. , o $eddirq - 1 ,'- except sone fo!nt lollnotions In top 6 6$in. ore friable/ I, __i L- fissile. Hid-tntervol is sondier with m f. . to 0.9. ,I sold md less cloy, Hod. porous. Plug ot 57.1 I. - -// -- ,I 2511 smd, 401 si It, 351 cloy. // T.-#-- SlTr kAISTm: SI It Cloystorit with troce bd. Light olive roy 15 I 6/11 // - - -- . I, to o1 ive goy I5 !4/11, mottled op mce.- 9 op 0.2' cui- // - ..- -- careous. Intervol lhlel oppecrs iotlrboted, same md. ,I r __-/. /- bruw I5 YR 3/41 hemotite nodules. Possibl sone soft sed- .#' //.r' , inent defmtim. [~emod: well cemt edy. Icrgilloceolsl. - ..- -- ,I . Hod. frioble to nmfrioble in wlccrwus interwi Core : 7--/-- slightly Some carbon, some very silty lenses. --/--/- damp. 7-7-- +/-4Ol SI It, +/- 60% CIOY,tmce sad. --/--/ -7-7-I 'SmT UA'ISTN: smdy [lo stone with soae Silt to silty Cloystone with i:':.dy - /-- /- lenses. I t olive groy 15 1 6/11 to olive goy 15.I eil. -/-if-- - hdt. ccr pd. WOO^^ fmments ?.f soe leaf' in- I - /-- /- rtq 7--/--_._.-.. prints.. Core si'is,.tj a?, t'riooi; adier INS~~, to __-.-.. ._.-.- nd. friable.. Pred. cd. well ceenteo icrgillocwlsl. -.-.-.. orid -.-.-..._.___ Tmce henotitic nodules stoining. So% Iminrr strut- _._.-.. tlre. !ifit sit dimt deformtion. .killing inhced ___.-..._.___.-.__- froctlrinj ohsandier lenses and Iminoe.: Smd pd. . __-.-.._-._.- - . - . - . . . .. quartz, sox minerals, v.f.9. ped..* , __-._..._.___ A well sort4 - . - . - . . . qulrr. froctwe at oppmx. 58.0; on mgle of -.-.-.._-.-.- One at .-.-.- % -._._.- . -. - . . !. ' __-.-..__.-.- ___.-..._._.- : . . F.2 sd +/- 29I'silt, +/-4iI cloy: ,.i - .-.-. .- . .- . *_. _..... - I . .. !FRM 76’161 $?VI SITEUIU CPsIffi OIMlcR lINl G~OLOGIST IG1g5by EhST iCB1141 1CCATMl NUIBEA 06 @ME OIPII~TEA IINl 10 013 15 rAiE NILLED oi/o9/~. RM?IKS Holllw Sta Aqer, Ratcry Core Drill AS1 Geologist F Crigsby Borehde filled with bentonite ptand abandoned on 111?/92 41191 -- r U c z 70
71
7;
7
I
I i7 b
1
1
a. .I D n
D C' D n
/
I// I I, jjl
..
,.I, NORM 198816 AREA SIrmIOE MINiOIt4fltR llNl KBM;IST EAST 2085012 IUTORWA 19 BMIMXE OWerm lINl 10 On ‘15 OhlE 1IlLEO 05/12192 R[Iwu(S Orilling Equipent CK 150 AN, SImO 2800 As1 Gwlolgist Fred 6riqsby EB4SCO Geologist J bylm Barehde filled with“IGSBr 42892 bentonite grout ond Mm W1fl , ^^
.IOn.o
1.10 n.1 12%qravel, 1711 smd 4311 si t, 28 cloy. \ d‘ NO SPlYRE No recovery
1.41 14
0.20 fl W5
cc c
u)c
\IclAYSIN Cloystone.I* I Sme lower holf of interval from 12.3' to 1f.I' 9511 cloy. I STATE Pw6 WOAOINATE: IOIk UPIH Ifll. 159.6 GRW WATIOH IFTI: 5984.13 PXIOJECI MfifR: SITEUIU LOG OT BORING NJHBER:
S.ai 15.
0.N 10 I r a 8 W a-4
VIC U -I rnW : I "U W-I OI- a
0 VIE
idgrayish orohge (10 YR 7/41'1e0 stoining it top of inter- I vol Oecreoses HI th depth lop 5" of intervol consists of I soft, sli tly doq ond pliable cloy uith 2 5' qucrtzite Debble ii~i! dded in middle of core Isli.ff1 Remainder of in-
.AYSTONE Cloystone. 01 ive groy 15 1 4/11, Ver distorted br ki I- Iin . Varies from sIi htly domp ond L!%! nse, to hap, md 01 I%1 le. Not reoresen9 ot tve of intervol. 951 cloy. I STATE PWB M#]AOWCIE IOIiy UPIH IFTI 159 6 WDwl UEVAIION IF11 5989 13 PNJECI NV1BtR SIiEUIE 1% OF EORM MEfR WORM 198876 m SITEUIU CPsIffi OMIR IINl GEOLOGIST EAST 2085012 LOCATOR MRKR 19 BMlWlE OIhWcR IINI 10 013 75 OAR RILLE0 05/12/92 RUMS Orilling Equipent CK 150 SlV, SIKU 2800 AS1 hlolgist fred Griqsby EBASM) Geolqist J bylm Eorelule filled uithGRIGSB' 42892 bentmi te put and dxndmed cn ti!lfl
I- CKzw w>00 ao ww aa
I
! I 1 i !1 i i I I I i I ! , i
I _.______E
.-4 2.l """'"~""""'~""'""~''u7 Lr-J Ln *''r'" U>'''''~'"l"'''"'L r--Lr-J CLu7 u7 Ln Lnc5""'"'''"'"" Ln LL '""'~''d-""""'&l IJII4ld3O u7
I.iILIIlIV0 +E65 €E65 2E6S TE6S OE6S 6Z:E.S 8265 A7.65 326s 5265 €3 lYAU31NI e Atl3A033tl E I STATE PM COOAOINAIE iOlAl OEPIH lfll. IS9 6 FiOUNl ELEYAlION lfTl 534 13 ?KloJECl MBER SIiElllOE LOG Of BORING NJRBER NORM 798816 AREA SlTEUIE '%IN; DMIER lINl SEOLOGISI r FaIffilT 013 89 ERST 2085012 NUMR 19 eOREHllE OIHIER [IN1 10 75 DATE DIILLED iiS/12/92 42 2 LOCATOR REWS Drilling Equipent CK 150 AI, SIfiCO 2800 AS1 Geololgist Fred Gri~by EBASCO 6eologist J bylm Uorehle filled with btntoni te orout and hndoned-- m 05/14/92 * ;-I cc ea LC zw a> cm w,00 >a WADI wzow wwao uc SIE ILC aH LInaoFl
m n.o
IO SW1F'lE. No recovery, rotary dr i I led
.m n I
IAYSTONE: Cloystone. 01 ive groy (5 Y 4/11 Damp, soft ond pl idle, ossibly sluFf i:' !5x cloy I, li SMDY RAYSTONE: Smdy Cloysto~Hith some Silt light olive aroy 15 Y 6/11 with 01 ive y 15 Y 9/11 cloystone lenses oni? broHnish block 15 YR 211 carbonaceous lorninoe. Sond v f q. well sorted, sub-o~uhrquortz Core SIi$t ly doy, kl I ca- !.N R. ented, mod frioble No bedding min. visuol porosity 361 smd, 191 si It, 45X cloy CLAYSTONE Cloystone 01 ive roy (5 Y 9/11 Core dr to SIightly dmo. dense od in rated SI friob e 1 iohtlydI 'i >9or cloy. NO WPlE No recovery CLAYSTONE Cloystone with some Silt Hed groy IN51 to dark groy IN31 and brornish jroy 15 YR 4/11 Sone bromish block 15 YR 2/11 corbonoceous lminoe dense and mod induroted 2.1R Some to mod obundt corbon srfoce Bedding uesrionable tloy be rov I hwiz to sli$tly dipping 9N o distinct froctures ki!totions of ossible ox 30 degree koled froctures em SI It, 7k cloy bentmite arout ond ohdored-- m OVI'UT.
M
I
! I
+a 2: ii wwzw >a uo ow 5: ao oc +a ww WL cw a~ un ao
Mnll
Clo stone ui th some Si It Dusk ye1 louish broun 110 YR 2121 to L Mnish block 15 YR 2/11 [ore consists of domp umm- 501 intervols md slightly donp to dry intoct core Intact cwe is dense ond idlroted Pred non-frioble Unconsol !.M R cwe consists of disturbed or brecciated sediment frogments Sow to mod oblndt carbon Indicottd possible horiz to sl iohtlv diwina (5 deoreesl beddino Indicated 30 degree _____-'a . -- - m
=- -n V M 0I--
II llllld30
I I lllllllWll APPENDIX 3
PLANT MICROFOSSIL COUNT DATA FROM WELL #B217489 AND WELL #00291
Palynology of tbe uppermost Laramie FdReport andArapaboeFomationsattbe April 30,1993 Rocky Flats Plant near Gokien, Cobrado POLLEN, SPORE, & DIN0 COUNTS
SAMPLE# 8217489-1 45.1-45.5' DATE: 28 OCTOBER 1992 % @ COUNTS 1. Gymnosperms Monocolpate 0 0% Bisaccates 1 4 yo Corollina 0 0% TCT 2 9Yo Other 10 I 0% I 2. Spores Trilete 5 22% Monolete 3 13% Schuosporis 1 4 yo
Chatangiella/lsabelidinium 0 0% Other 0 0% Acritarchs 0 0% TOTAL 23 100% POLLEN, SPORE, & DIN0 COUNTS
SAMPLE# 6217489-2 67.2' DATE: 28 OCTOBER 1992 % COUNTS 1. Gymnosperms Monocolpate 2 1Yo Bisaccates 16 5 yo Corollina 2 1Yo TCT 50 17% Other 1 0 Yo
2. Spores Trilete 117 39% Monolete 24 8% Schizosporis 14 5yo
3. Angiosperms Triprojectate 7 2 Yo Tricolpate 9 370 Triporate 23 0 Yo Tricolporate 2 1% Periporate 1 0%
4. Dlnoflageliates Cyclonephelium 4 1% e Spiniferites 4 1% Oligosphaeridium 0 0% Dinogymnium 3 1Yo Chatangiella/lsabelidinium 0 0% Other 16 5% ~ Acritarchs 5 2% TOTAL 300 100%
~~ ~ a ~
Page 2 POLLEN, SPORE, & DIN0 COUNTS
SAMPLE# 821 7489-3 75.9' DATE: 28 OCTOBER 1992 YO COUNTS 1. Gymnosperms Monocolpate 21 11% Bisaccates 2 1Yo Corollina 0 0 Yo TCT 29 15% Other 1 1%
Acritarchs 0 0% TOTAL 194 100%
1 I
Page 3 POLLEN, SPORE, & DIN0 COUNTS
SAMPLE# 8217489-4 84.3' IDATE: 28 OCTOBER 1992 1% COUNTS 1. Gymnosperms Monocolpate 2 1Yo Bisaccates 13 6 % Corollina 0 0% TCT 51 25% Other 0 0%
2. Spores Trilete 78 38% ~~ Monolete 18 9 % Schkospotis 5 2%
3. Angiosperms Triprojectate 3 1% Tricolpate 5 2% TriDorate 14 7%
4. Dinoflagellates Cyclonephelium 1 0% Spiniferites 3 1% Oligosphaeridium 1 0% Dinogymnium 1 0% Chatangiella/lsabelidinium 1 0% Other 5 2 % Acri tarchs 1 0 Yo TOTAL 204 100%
a I Page 4 POLLEN, SPORE, & DIN0 COUNTS
SAMPLE# 8217489-5 86.1' DATE: 28 OCTOBER 1992 % COUNTS 1. Gymnosperms Monocolpate 2 1% Bis acc ates 9 4 yo ~~ Corollina 0 0% TCT 13 6% Other 11 I 0% I
4. Dinoflagellates Cyclonephelium 1 0% Spiniferites 2 1 % Oligosphaeridium 0 0% Dinogymnium 3 1% Chatangiella/lsabelidinium 3 1% Other 6 3% Acritarchs 3 1 Yo TOTAL 203 100%
\ZO Page 5 i POLLEN, SPORE, & DIN0 COUNTS
SAMPLE# 8217489-6 91.5' DATE: 28 OCTOBER 1992 YO 0 COUNlS 1. Gymnosperms Monocolpate 4 2 Yo Bisaccates 10 570 Corollina 0 0 Yo T(=T 26 13% Other 0 0%
2. Spores Trilete 102 51% Monolete 27 14% Schizosporis 2 1 70
3. Angiosperms Triprojectate 3 2% Tricobate 1 I 1% Triporate 15 I 0% Tricolporate 2 1Yo Perborate 1 1 Yo
4. Dlnoflagellates Cyclonephelium 0 0% a SDiniferites 0 0% Oligosphaeridium 0 I 0% Dinogymnium 5 I 3% Chatangiella/lsabelidinium Other Acritarchs 1% TOTAL 4200 100%
Page 6 POLLEN, SPORE, & DIN0 COUNTS
SAMPLE# 8217489-1 4 214.3' DATE: 28 OCTOBER 1992 %
Monolete 35 17% Schizosporis 1 0%
TriprojectateI riprojeciaie 3J 1%I 70 Tricolpate 6 3% TriTriporate --e+- 29qn 14%
Acritarchs 0 0% TOTAL 202 100%
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Page 7 POLLEN, SPORE, & DIN0 COUNTS TABLE 1 TABLE 2
EdReport - Palynology of the Uppermost Laramie andArapahoeFo&mattbe April 30,1993 .Rocky Flats Plant near Go- Cobdo TABLE 3
Palynology of the Uppemost Laramie FdReport and Arapaboe Formotiorrs at the April 30.1993 Rocky Flats Plant near Goldeo, Cobrado
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)3I TABLE 3 Cont’d
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TABLE 1 Cont’d TABLE 2 TABLE 2 Cont’d
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