DOCSLIB.ORG

Aui Geologie

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Aui Geologie Available online at http://geology.uaic.ro/auig/ AUI Analele Stiintifice ale Universitatii “Al. I. Cuza” din Iasi Seria Geologie 63 (1–2) (2017) 51–63 GEOLOGIE First report of the genus Euciphoceras (Nautiloidea, Mollusca) from the latest Eocene rocks of the North-western Thrace Basin (Bulgaria) Paul Țibuleac1, George Ajdanlijsky2 1 “Alexandru Ioan Cuza” University of Iaşi, Department of Geology, 20A Carol I Blv, 700505 Iaşi, Romania 2 “St. Ivan Rilski” University, Department of Geology and Geoinformatics, Student Town, “Prof. Boyan Kamenov” Str., Sofia, 1700, Bulgaria Abstract The unique nautiloid specimen recorded so far from the latest Eocene marl bed of Durhana Quarry (DQ), Haskovo County (North-western Thrace Basin, Bulgaria) is described and dis- cussed herein. It represents a phragmocone mould collected from the bench of level 103 of DQ. In the outcrop, one lateral side was exposed to the weathering process and the other was embedded in the rocks of the so-called “Tuff-Limestone Package” Member (“First Acidic Volcanic” Formation). The host-beds were previously documented as latest Eocene by a larger foraminifer and echinoid assemblage. The specimen belongs to the genus Euciphoceras Shultz, 1976. The attempt to assign a species name failed because the nautiloid has been compressed and slightly deformed by the diagenetic processes within the host-rocks. The general overview of the Eocene nautiloid records from the surrounding areas suggests a continuity of the same genera from Western Europe to South-central Asia (Tethyan Realm). Keywords: Durhana, phragmocone, Priabonian, paleogeographical overview. 1. Introduction although they were documented in the widespread occurrences on all continents. The nautiloid specimen of Durhana Generally, only a few specimens are Quarry was an incidental finding. After- known from one Cenozoic stratigraphic ward, several successive field trips failed level or from one sedimentary succession. to sample new ones. This is not unusual, The nautiloids are greatly surpassed by because in the Cenozoic the nautiloids are other mollusks (e.g., Hochstetter 1870; rather scattered records among the faunas, Frauscher, 1895; Vogl, 1908; Lőrenthey and © 2017 Ed. Univ. „Al. I. Cuza” Iași. All rights reserved Corresponding author’s e-mail: [email protected] 52 Țibuleac P. and Ajdanlijsky G. Beurlen, 1929; Kummel, 1956; Shimansky, The TB has been extended from its 1957; Squires, 1988; Hewitt, 1995; Saunders Turkish traditional area towards west and et al., 1996; Galácz, 2004; Micuź, 2009; south-west on Bulgarian and Greek ter- Micuź and Bartol, 2012 etc.). However, ritories (e.g., Görür and Okay, 1996). It several exceptions have been noticed (e.g., was divided into several sectors, i.e., Zinsmeister, 1987; Ward et al., 2016). Central-eastern (Turkey), North-western The short events of increased frequency (Bulgaria), and South-western (Greece) during the early Paleocene, early and (Caracciolo et al., 2015). middle Eocene and middle Miocene were The Bulgarian branch of TB (North- connected with episodes of warm climate western Thrace Basin=NWTB) represents expansion to the high latitudes (e.g., the “biggest negative structure within the Miller, 1949; Dzik and Gaździcki, 2001) Balkan Orogenic System” (Popov et al., and also with the extinction of the ammo- 2015, and references therein) between noid competitors after the Cretaceous- Sredna Gora-Strandzha and the Rhodope Paleogene (K-Pg) mass extinction (e.g., Mountains. It was referred to by different Miller, 1949: 231-232). names in the previous Bulgarian papers: After the Neogene, several occur- “Upper Thracian Depression” (Boyanov and rences document the nautiloid continuity Goranov, 2001 and references therein), up to the present day. It should be “Upper Thracian Lowland” (Popov et al., mentioned the presence of nautiloid shell 2015) etc. The NWTB was first explained fragments in the Pleistocene cemented as post-orogenic graben (Bončev and eolianitic sands of Ciovai Island from the Bakalov, 1928), but was later related with Bajuni Islands, Archipelago of Somalia the “Maritsa suture” (Bončev, 1961; 1971; (Carbone et al., 1999; Matteuci, 2015). Boyanov and Goranov, 2001 and refer- Also, the specimens of Nautilus pompilius ences therein; Popov et al., 2015 and were reported by Wani et al. (2008) from references therein). the Pleistocene siltstone exposed on The implication of a continental rift Tambac Bay (Tambac Island, Philippines) system (Upper Thracian Rift System and by Kase et al. (unpublished data – =UTRS) in the evolution of NWTB fide Wani et al., 2008) from the Holocene during the Eocene-Quaternary post- reefal rocks in Leyte (Philippines). collisional processes was summarized by Boyanov and Goranov (2001) and Popov 2. Geological framework et al. (2015). During the main Alpine compressional events of latest Cretaceous The Durhana Quarry is situated about – early Paleogene age originated by the 2 km west of Dimitrovgrad town (Haskovo northward subduction of the Vardar County, Fig. 1D) in the north-western part oceanic crust (Mureș-Vardar-Izmir-Ankara- of the extensive Cenozoic Thrace Basin or Erzincan suture – Cavazza et al., 2013) Thracian Basin (TB, Fig. 1A). Clayey beneath the active margin of the limestone, calcareous clays, and marls Euroasian paleocontinent, the Serbo- were mined in the quarry up to the mid- Macedonian and Balkan orogenic belts 20th century for clinker and cement were formed. The latter was divided into: production. 1) Balkan s. str./External Balkanides/Stara AUI–G, 63, 1–2, (2017) 51–63 Genus Euciphoceras in the North-western Thrace Basin 53 Fig. 1 Location of Durhana Quarry: A – Thrace Basin (after Görür and Okay, 1996); B – Devel- opment of Popovitsa-Stryama Horst (after Boyanov and Goranov, 2001); C – The main tectonic units of Balkan orogenic belt on the Bulgaria territory (after Dabovschi et al., 2002). D – Geo- logical map of the DQ surrounding area (after Bojanov et al., 1993, with additions). Planina, 2) Sredonogorie/“middle mountain prove a southern polarity (pro-wedge), belt”, and 3) Rhodope/Morava-Rhodope/ whereas Balkan s. str. and Sredonogorie Internal Balkanides (Dabovschi et al., (retro-wedge) are overthrusted northward 2002 and references therein). These tec- on the Moesian Platform (Gocev, 1991 – tonic units have different orogenic po- fide Vangelov et al., 2013). larity: Rhodope Mountains generally After the latest Cretaceous – early AUI–G, 63, 1–2, (2017) 51–63 54 Țibuleac P. and Ajdanlijsky G. Paleogene orogenetic phases, a post- ocean or (3) a combination of these two orogenic collapse formed in several steps processes. a radial graben-mosaic (Boyanov and The depositional processes developed Goranov, 2001) between Sredna Gora and various patterns in the different basins Morava-Rhodope zones (Fig. 1C, A) fa- (basin-mosaic), which were associated cilitated by a complex inter-related sys- with an intense volcanic activity during tem of faults (en echelon pattern – Oligocene (Boyanov and Goranov, 2001; Doglioni et al., 1996). Starting with the Cavazza et al., 2013; Popov et al., 2015 Eocene (? Bartonian-Priabonian), a marine and references therein). Then, the sedi- transgression marked the beginning of mentation continued up to the Quaternary sedimentation in the NWTB (e.g., through Oligocene – middle Miocene, late Boyanov and Goranov, 2001; Popov et Miocene–Pliocene and Quaternary cycles al., 2015 and references therein). From (Popov et al., 2015). the lastest Priabonian, the depositional environment evolved into a continental- 3. Geological settings transitional-nearshore setting. Several reef limestone levels built by corals, green algae, The Durhana Quarry belongs to Popovo- bryozoans, and other invertebrates oc- Stryama Horst (PSH), a second-order tec- curred in the intervals of relative tectonic tonic unit of NWTB which played the role stability within Priabonian – Rupelian of longitudinal barrier (WNW–ESE) dur- time-span (Boyanov and Goranov, 2001; ing the Paleogene evolution (Fig. 1B). Cavazza et al., 2013 and references therein). PSH developed along the Maritsa deep The next southern extensional regime fault/suture, which controlled the Oligocene (Oligocene–Neogene) which occurred from volcanic activity, especially in the eastern Turkey to Greece with the opening of the part (Boyanov and Goranov, 2001). Aegean Sea, determined the extension of The rocks cropping out in the Durhana the upper plate and the formation of the Quarry belong to the Triassic basement UTRS along the major Maritsa Fault/ (pre-Late Cretaceous rocks), on one hand, Maritsa graben system (Boyanov and and the post-collisional rocks of Paleogene– Goranov, 2001; Cavazza et al., 2013 and Neogene, on the other. Ustrem Formation references therein). Also, the opening of (intensively metamorphosed clastic rocks) the Black Sea (Cretaceous–Paleogene) and Srem Formation (metamorphosed car- have influenced the tectonic evolution of bonates) represent the Triassic basement the region, at least for the eastern part of (Kozuharov et al., 1968; Čatalov, 1985). It Balkans/Bulgaria (Doglioni et al., 1996). is covered by relatively thick Cenozoic Cavazza et al. (2013) summarized the volcano-sedimentary succession (tuffs and main hypotheses for the genesis and tuffites, marls, sandstones, nodular lime- evolution of the entire TB: (1) the post- stone, breccias etc., Fig. 2B). The later orogenic collapse after the closure of the succession is not yet formalized and bears Vardar ocean branch (the old hypothesis different names, i.e., “First
Load more

Recommended publications
  • Paleontology and Stratigraphy of Eocene Rocks at Pulali Point, Jefferson County, Eastern Olympic Peninsula, Washington
    PALEONTOLOGY AND STRATIGRAPHY OF EOCENE ROCKS AT PULALI POINT, JEFFERSON COUNTY, EASTERN OLYMPIC PENINSULA, WASHINGTON by RICHARD L. SQUIRES, JAMES L. GOEDERT, and KEITH L. KALER WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES REPORT OF INVESTIGATIONS 31 1992 ., WASHINGTON STATE DEPARTMENT OF Natural Resources Brian Boyle • Commhstoner of Public Lands An Steo_r0$ - Superv1sor Division ol Geology and Earth Resources Raymond Lcmnanls. State Geologlsl PALEONTOLOGY AND STRATIGRAPHY OF EOCENE ROCKS AT PULALI POINT, JEFFERSON COUNTY, EASTERN OLYMPIC PENINSULA, WASHINGTON by RICHARD L. SQUIRES, JAMES L. GOEDERT, AND KEITH L. KALER WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES REPORT OF INVESTIGATIONS 31 1992 W>.SHING'TON STAT1r OEPARTMDIT or Natural Resources 8ncll) Bov,. · COmmmioner ot Pu!xk: tancb M $i.atni; S\lp$1'WOJ' DtY!llcn 01 Gtology ahCS £artti ~ Raymond l.mlMn.:I ~Geologist Cover: From left, ?Falsifusus marysvillensis; Pachycrommium clarki; large bivalve, Veneri­ cardia hornii s.s.; Delectopecten cf. D. vancouverensis sanjuanensis; Turritella uvasana hendoni. These specimens are shown at 150 percent of the dimensions on Plates 1 and 3. Use of trade, product, or firm names in this report is for descriptive purposes only and does not consitute endorsement by the Washington Division of Geology and Earth Resources. This report is available from: Publications Washington Department of Natural Resources Division of Geology and Earth Resources P.O. Box 47007 Olympia, WA 98504-7007 Price $ 1.85 Tax (Stale residenl.t only) .15 Total $ 2.00 Mail orders must be prepaid; please add $1.00 to each order for postage and handling. Make checks payable to the Department of Natural Resources.
    [Show full text]
  • New Findings of Eocene Nautiloids from North Western Desert, Egypt
    Journal of African Earth Sciences 159 (2019) 103580 Contents lists available at ScienceDirect Journal of African Earth Sciences journal homepage: www.elsevier.com/locate/jafrearsci New findings of eocene nautiloids from north Western Desert, Egypt T ∗ Mohamed F. Aly , Sherief A. Sadek Geology Department, Faculty of Science, Cairo University, Giza, Egypt ARTICLE INFO ABSTRACT Keywords: The Tertiary marine succession of the north Western Desert, Egypt, is rich in vertebrates, molluscs and other Nautiloids invertebrates, but nautiloids are less abundant. Five nautiloid species, are reported herein: Eutrephoceras sp., Sharks Aturoidea parkinsoni, Aturia aturi, Aturia cf. alabamensis and, Aturia cf. gujaratensis. They are collected and Tertiary identified from the lowermost part of Gebel Minqar Tebaghbagh area. The studied section is located 90 km to the Siwa oasis east of Siwa Oasis at the south of western side of the Qattara Depression. The recovered specimens are mostly Western desert crushed, partially fragmented internal molds, mostly showing badly preserved suture lines and dorsal to sub- Egypt central siphuncles. The nautiloids occur in abundance in random orientation through a clastic-dominated suc- cession. They are mostly represented by middle-aged and mature specimens. Recently, the lower part of Gebel Tabaghbagh was assigned to Late Eocene. 1. Introduction southwest of Aswan city, south Western Desert, Hewaidy and Azzab, 2002 described and identified five nautiloid species of the Paleocene The north western Desert of Egypt is almost a plain area. The only age from the Kurkur Formation. Those are Deltoidonautilus polymorphus characteristic features are the Marmarica Limestone plateau and the Hewaidy and Azzab, Deltoidonautilus sp. 1, Deltoidonautilus sp.
    [Show full text]
  • Geologic Map of Washington - Northwest Quadrant
    GEOLOGIC MAP OF WASHINGTON - NORTHWEST QUADRANT by JOE D. DRAGOVICH, ROBERT L. LOGAN, HENRY W. SCHASSE, TIMOTHY J. WALSH, WILLIAM S. LINGLEY, JR., DAVID K . NORMAN, WENDY J. GERSTEL, THOMAS J. LAPEN, J. ERIC SCHUSTER, AND KAREN D. MEYERS WASHINGTON DIVISION Of GEOLOGY AND EARTH RESOURCES GEOLOGIC MAP GM-50 2002 •• WASHINGTON STATE DEPARTMENTOF 4 r Natural Resources Doug Sutherland· Commissioner of Pubhc Lands Division ol Geology and Earth Resources Ron Telssera, Slate Geologist WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES Ron Teissere, State Geologist David K. Norman, Assistant State Geologist GEOLOGIC MAP OF WASHINGTON­ NORTHWEST QUADRANT by Joe D. Dragovich, Robert L. Logan, Henry W. Schasse, Timothy J. Walsh, William S. Lingley, Jr., David K. Norman, Wendy J. Gerstel, Thomas J. Lapen, J. Eric Schuster, and Karen D. Meyers This publication is dedicated to Rowland W. Tabor, U.S. Geological Survey, retired, in recognition and appreciation of his fundamental contributions to geologic mapping and geologic understanding in the Cascade Range and Olympic Mountains. WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES GEOLOGIC MAP GM-50 2002 Envelope photo: View to the northeast from Hurricane Ridge in the Olympic Mountains across the eastern Strait of Juan de Fuca to the northern Cascade Range. The Dungeness River lowland, capped by late Pleistocene glacial sedi­ ments, is in the center foreground. Holocene Dungeness Spit is in the lower left foreground. Fidalgo Island and Mount Erie, composed of Jurassic intrusive and Jurassic to Cretaceous sedimentary rocks of the Fidalgo Complex, are visible as the first high point of land directly across the strait from Dungeness Spit.
    [Show full text]
  • Cephalopods from the Late Eocene Hoko River Formation, Northwestern Washington Richard L
    Oi<~e2> K A.. Natural History Museum ifiCl^i Of Los Angeles County IVooCL Invertebrate Paleontology J. Vakom.. 62(1). 1988. pp. 76-82 Copyright 1488. The- Paleontologual Society 0022-3360,88/0062-0076S03.00 CEPHALOPODS FROM THE LATE EOCENE HOKO RIVER FORMATION, NORTHWESTERN WASHINGTON RICHARD L. SQUIRES Department of Geological Sciences, California State University, Northridge 91330 ABSTRACT—Rare specimens of the nautiloids Nautilus and Aturia and extremely rare specimens of a sepiamorph sepiid are described from the late Eocene Hoko River Formation, northern Olympic Peninsula, Washington. The well-preserved partial phragmocones are from channel-fill clastics deposited on the inner and middle slopes of a submarine-fan system. The Nautilus specimen is allied to N. cookanum Whitfield from middle Eocene strata, New Jersey, and is probably conspecific with Nautilus sp. (Miller) from late Eocene strata, northwestern Oregon, both of which were previously assigned to Eutrephoceras. This is the first record of Nautilus in the northeastern Pacific. The Aturia specimen is tentatively identified as A. cf. A. alabamensis (Morton), a species previously only known from late Eocene strata in the Atlantic-Gulf Coastal area and northeastern Mexico. Aturia alabamensis may be the same as numerous Eocene North American aturiid species. The two sepiamorph sepiid specimens resemble Belosepia Voltz but are probably generically distinct. They are only the second record of sepiids in the Eocene of the northeastern Pacific. INTRODUCTION rizian Stage (late Eocene). He also inferred, based on the benthic ATE EOCENE cephalopods are rare in the northeastern Pacific. foraminifers, that the formation was deposited in relatively cool, L moderately shallow ocean waters between lower neritic and up- The occurrence of three genera at a locality in northwestern permost bathyal depths.
    [Show full text]
  • 2019 Science Olympiad Fossils Test SSSS By
    2019 Science Olympiad Fossils Test SSSS By: Elizaveta Koroza ​ Station 1 1) Genus Exogyra 2) Jurassic and Cretaceous periods 3) True ​ 4) Genus Pecten 5) A comb or rake ​ ​ ​ ​ 6) True ​ 7) Genus Gryphaea 8) The “Toenail” 9) Devil's toenails ​ 10) Phylum Mollusca Station 2 1) Genus Basilosaurus 2) False ​ 3) United States 4) Genus Mammuthus 5) 22 months 6) 12 tonnes (13.2 short tons) ​ 7) Genus Equus 8) North America 9) Carl Linnaeus ​ 10) Class Mammalia Station 3 1) Genus Acer 2) Asia 3) Opposite leaf arrangement ​ ​ ​ 4) Genus Populus 5) True ​ 6) 50 m or 164 ft ​ 7) Genus Platanus 8) Planes or plane trees ​ 9) False 10) Carbon Film Fossils Station 4 1) Genus Lingula 2) Body Fossil ​ 3) Jean Guillaume Bruguière ​ 4) Genus Composita 5) Carboniferous to Permian period ​ 6) Class Articulata 7) Genus Platystrophia 8) Marine lime mud and sands ​ 9) False ​ 10) No Station 5 1) Genus Allosaurus 2) Different lizard ​ 3) Greek 4) Genus Parasaurolophus 5) Herbivore 6) Alberta 7) Genus Dracorex 8) True ​ 9) True ​ 10) True ​ Station 6: 1) Genus Heliophyllum 2) Horn Corals 3) Devonian 4) Genus Halysites 5) Plankton ​ 6) Found in the sediments of Canada, United States, Poland and Australia ​ 7) Genus Favosites 8) Honeycomb coral ​ 9) Warm sunlit seas ​ 10) False ​ Station 7: 1) Genus Nautilus 2) Late Eocene Hoko River Formation ​ 3) False 4) Genus Platyceras 5) Crinoids ​ 6) True ​ 7) Genus Worthenia 8) Devonian to Triassic periods ​ 9) Amos Henry Worthen ​ 10) Fossil A Station 8: 1) Genus Astraeospongia 2) Basket Sponge ​ 3) The spicules ​ 4) Genus Hydnoceras 5) Silica Spicules ​ 6) True ​ 7) Genus Hexagonaria 8) True ​ 9) Petoskey Stone ​ 10) Station 9: 1) Genus Eldredgeops 2) 11 segments 3) Schizochroal eyes 4) Genus Isotelus 5) False ​ 6) Churchill, Manitoba ​ 7) Genus Elrathia ​ 8) Cambrian period ​ 9) True ​ 10) Fossil C Station 10: 1) Genus Eurypterida 2) Sea Scorpions ​ 3) True ​ 4) Genus Bothriolepis 5) Likely a bottom-feeder ​ 6) True ​ 7) Genus Dunkleosteus ​ 8) The Devonian period ​ 9) David Dunkle ​ 10) False ​.
    [Show full text]
  • Open File Report 2003-6, Geologic Map of the Washington Portion Of
    WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN FILE REPORT 2003-6 Division of Geology and Earth Resources Ron Teissere - State Geologist R. 3 W. 123°00¢ 48°30¢ Qgd Qgd Qgd Tertiary Sedimentary and Volcanic Rocks Pre-Tertiary Marine Metasedimentary Rocks JŠmco KJmmc KJmmc Qgt Qgd Qgdmes ROCKS OF THE CRESCENT TERRANE OF BABCOCK AND OTHERS (1994) KJmmc Constitution Formation (Cretataceous–Jurassic)—Poorly to moderately Qgdmes Qgt T. 35 N. KJmmc ROS sorted volcaniclastic sandstone, cherty sandstone, mudstone, and conglomer- Qf Qgd Twin River Group—Divided into: ate with less-abundant ribbon chert, green tuff, and basalt and dacite pillows; A RIO Qb MOm Pysht Formation (Miocene–Oligocene)—Massive, poorly indurated includes rare limestone. Clastic rock types are commonly massive and locally Qgd „…m p p marine mudstone, claystone, and sandy siltstone; also contains beds of graded; sandstone is commonly turbiditic; mudstone is commonly massive. THRUST very thick calcareous sandstone (1–20 ft thick). Unweathered mud- Conglomerate contains rounded to angular volcanic, chert, metaplutonic, and KJmmc Geologic Map of the Washington Portion of the Port Angeles 1:100,000 Quadrangle stone, claystone, and siltstone are medium gray to dark greenish gray, schistose clasts in a siltstone matrix; rhythmically bedded ribbon chert is JŠmco Qp Qgdmes pale yellowish brown where weathered. Mudstone locally contains thin commonly interbedded with clastic rocks throughout the unit but more abun- Qgdme T. 34 N. beds of calcareous claystone; argillaceous rocks commonly contain dant near the base. Green tuff occurs near base of section and is commonly fine grained and indurated; pillow lava is interlayered with clastic rocks; by Henry W.
    [Show full text]
  • The Petrography and Tectonic Significance of the Blue Mountain
    Western Washington University Western CEDAR WWU Graduate School Collection WWU Graduate and Undergraduate Scholarship Summer 1987 The etrP ography and Tectonic Significance of the Blue Mountain Unit, Olympic Peninsula, Washington Jon M. Einarsen Western Washington University Follow this and additional works at: https://cedar.wwu.edu/wwuet Part of the Geology Commons Recommended Citation Einarsen, Jon M., "The eP trography and Tectonic Significance of the Blue Mountain Unit, Olympic Peninsula, Washington" (1987). WWU Graduate School Collection. 840. https://cedar.wwu.edu/wwuet/840 This Masters Thesis is brought to you for free and open access by the WWU Graduate and Undergraduate Scholarship at Western CEDAR. It has been accepted for inclusion in WWU Graduate School Collection by an authorized administrator of Western CEDAR. For more information, please contact [email protected]. MASTER'S THESIS In presenting this thesis in partial fulfillment of the requirements for a master's degree at Western Washington University, I agree that the Library shal’l make its copies freely available for inspection. I further agree that extensive copying of this thesis is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without my written permission. Signature Date Bellingham, Washington 98Z25 □ (206) 676-3000 THE PETEDGRAPHY AND TECTCNIC SIGNIFICANCE OF THE BLUE MOUNTAIN UNIT, OLYMPIC PENINSULA, WASHINGTON A Thesis Presented
    [Show full text]
  • Tectonic Evolution of the Cascades Crystalline Core 113
    TECTONIC EVOLUTION OF THE CASCADES CRYSTALLINE CORE 113 Mineral compositions (continued) 174-8a 174-24 174-33a 174-36c B G M p G H p B G M p G H p Si 5.95 5.95 6.88 - 5.86 6.39 - 5.93 5.95 6.53 - 5.93 6.53 - Al4 2.05 - 1.12 -- 1.61 - 2.07 - 1.47 -- 1.47 - Al6 1.60 3.96 4.34 - 4.03 1.01 - 1.76 3.97 4.89 - 4.03 0.94 - Ti 0.20 - 0.02 -- 0.08 - 0.24 - 0.05 - - 0.10 - Fe 3.32 3.55 0.43 - 3.95 2.01 - 2.74 4.41 0.11 - 3.85 1.89 - Mg 1.72 0.31 0.37 - 0.73 2.00 - 2.27 0.83 0.13 - 1.01 2.14 - Mn 0.02 0.22 -- 0.37 0.03 - 0.01 0.14 - - 0.20 0.02 - Ca - 2.08 - 0.37 1.18 1.87 0.38 - 0.24 - 0.34 1.02 1.79 0.36 Na 0.04 - 0.09 0.63 - 0.34 0.65 0.11 - 0.38 0.68 - 0.49 0.64 K 2.06 - 2.09 0.01 - 0.10 0.01 1.68 - 1.77 -- 0.10 - 174-45b 174-118a OHM20 0DM22 RT48A58 B G M p B G M p B G p B G p B G M p Si 5.96 5.91 6.67 - 5.91 5.98 7.05 - 5.47 5.98 - 5.55 6.00 - 5.87 6.00 6.75 - Al4 2.04 - 1.33 - 2.09 - 0.95 - 2.53 -- 2.45 - - 2.13 - 1.25 - Al6 1.69 4.03 4.81 - 1.67 3.99 0.83 - 0.86 3.96 - 0.89 3.95 - 1.71 3.98 4.85 - Ti 0.24 - 0.05 - 0.21 - 0.02 - 0.24 - - 0.14 - - - - 0.05 - Fe 2.21 4.35 0.10 - 2.40 4.18 1.78 - 1.97 4.22 - 1.64 4.07 - 2.70 4.38 0.17 - Mg - 0.84 0.18 - 2.75 1.04 2.69 - 2.66 0.97 - 3.08 1.29 - 2.25 0.41 0.22 - Mn - 0.06 - - 0.01 0.19 0.02 - 0.01 0.44 - O.Ql 0.05 - O.Ql 0.11 - - Ca - 0.89 - 0.40 - 0.61 1.83 0.25 - 0.44 0.28 - 0.66 0.38 - 1.12 - 0.27 Na 0.07 - 0.40 0.59 0.03 - 0.33 0.76 O.Q7 - 0.70 0.07 - 0.62 0.08 - 0.14 0.74 K 1.71 - 1.73 - 1.91 - 0.03 - 1.64 -- 1.65 -- 1.88 - 1.59 - B.
    [Show full text]
  • [Italic Page Numbers Indicate Major References] Abajo Mountains, 314
    Index [Italic page numbers indicate major references] Abajo Mountains, 314 andesite, 70, 82, 86, 267, 295, 297, terranes, 36, 644 Abert Lake-Goose Lake area, 343 299, 303, 305, 308, 310, 343, volcanic. See volcanic arcs Abert Rim area, 303, 377 345, 350, 371, 375, 483, 527, volcanism, 74, 81, 89, 299, 300, Absaroka Range, 290, 354 543, 644, 654 320, 385, 482, 491, 642 Absaroka system, 592 Aneth Formation, 45 waning, 643 Absaroka thrust, 172, 219, 594, 599, Angora Peak member, 316 See also specific arcs 601 Angustidontus, 34 Archean, 629, 632, 651, 652 Absaroka volcanic field, 218, 297, Anita Formation, 275 arches, 15, 46 300, 486, 491 anorthosite, 412, 633 archipelago, volcanic, 453 accretion, 36, 111, 127, 128, 131, Antelope Mountain Quartzite, 38, 40, arenite, 142 141, 168, 242, 252, 254, 262, 420 argillite, 11, 16, 31, 34, 38, 41, 62, 265, 273, 450, 468, 534, 545, Antelope Range Formation, 28 70, 81, 85, 87, 89, 111, 128, 555, 636, 646, 664, 677, 693 Antelope Valley Limestone, 22, 23, 24 130, 133, 136, 138, 141, 160, accretionary prism, 37, 127, 141, 241, anticlines, 213, 319, 340 162, 164, 281, 434, 543, 547, 281, 422, 423, 432, 436, 468, antimony, 643, 644 635, 658, 663, 671, 676 471, 621, 654, 676 Antler allochthon, 422, 431 Argus Range, 365, 600 actinolite, 528, 637 Antler assemblage, 419, 422, 450 Arikaree Formation, 286 Adams Mine, 632 Antler foredeep basin, 35, 61, 62, 74, Arizona, 140, 597 Adaville Formation, 219 94, 96, 420, 425, 430, 471 south-central, 323 Adel Mountain volcanic field, 218, Antler foreland basin, 28, 42,
    [Show full text]
  • Maastrichtian Ceratisepia and Mesozoic Cuttlebone Homeomorphs
    Maastrichtian Ceratisepia and Mesozoic cuttlebone homeomorphs ROGER A. HEWITT and JOHN W.M. JAGT Hewitt, R.A. & Jagt, J.W.M. 1999. Maastrichtian Ceratisepia and Mesozoic cuttlebone homeomorphs. -Acta Palaeontologica Polonica 44,3,305-326. The phylogenetics of potential Mesozoic ancestors of cuttlefish of a restricted order Sepiida von Zittel, 1895 (superorder Decabrachia Boettger, 1952) is reviewed. Micro- structural studies of Mesozoic homeomorphs of cuttlebones (Pearceiteuthis gen. n., Loligosepia, Trachyteuthis, Actinosepia) are consistent with their assignement to the superorder Octobrachia Fioroni, 1981. The discovery of an embryonic Ceratisepia shell in the upper Maastrichtian of the Netherlands, indicates that true Sepiida did have a pre-Cenozoic origin. Cretaceous decabrachs of the order Spirulida Stolley, 1919 do not show evidence of the dorso-anterior shell growth vectors seen in Cenozoic spirulids, sepiids and octobrachs. Separate origins of the Sepiida and Spirulida within Cretaceous diplobelinid belemnites is still the most attractive hypothesis. Ceratisepia vanknippen- bergi sp. n. from the upper Maastrichtian of the Netherlands and Pearceiteuthis buyi gen. et sp. n. from the Callovian of England are described. Key words : Cephalopods, cuttlefish, ontogeny, biornineralization, Mesozoic. Roger A. Hewitt, 12 Fairj-leld Road, Eastwood, Leigh-on-Sea, Essex SS9 5SB, United Kingdom. John W.M. Jagt [[email protected]], Natuurhistorisch Museum Maastricht, P.O. Box 882, NL-6200 AW Maastricht, the Netherlands. Introduction Cuttlebones are those dorsally hard and spherulitic, but ventrally soft and septate, aragonitic shells that invade beaches (Cadee 1997) and can be seen being sold to the owners of caged birds in pet shops. They are the expanded and highly modified inter- nal phragmocones of cephalopods (Bandel & von Boletzky 1979) and belong to a di- verse group of cuttlefish that appeared in the Rupelian (Szordnyi 1934; Hewitt & Pedley 1978; Engeser 1990).
    [Show full text]
  • A Petition to List Chambered Nautilus (Nautilus Pompilius) As Endangered Or Threatened Species Under the Endangered Species Act
    CENTER for BIOLOGICAL DIVERSITY Because life is good. A Petition to List Chambered Nautilus (Nautilus pompilius) as Endangered or Threatened Species Under the Endangered Species Act Photo: Gregory J. Barord Submitted to the U.S. Secretary of Commerce acting through the National Oceanic and Atmospheric Administration and the National Marine Fisheries Service May 31, 2016 Center for Biological Diversity 1212 Broadway Suit 800, Oakland, CA 94612 Phone: 510-844-7103 [email protected] 1 Alaska . Arizona . California . Florida . Minnesota . Nevada . New Mexico . New York . Oregon . Vermont . Washington, DC Abel Valdivia, PhD, Ocean Scientist, Oceans Program . 1212 Broadway, Suite 800 . Oakland, CA 94612 Phone: 510-844-7100 x 303 . Fax: 919-932-0199 . Twitter@AbelValdivia . [email protected] Petition to list chambered nautilus under the ESA ____________________________________________________________________________________ Notice of Petition Penny Pritzker Secretary of Commerce U.S. Department of Commerce 1401 Constitution Ave, NW Washington, D.C. 20230 Email: [email protected] Dr. Kathryn Sullivan Acting Under Secretary of Commerce for Oceans and Atmosphere and NOAA Administrator Office of Administrator National Oceanographic and Atmospheric Administration 1401 Constitution Ave. NW Washington, DC 20230 Email: [email protected] Eileen Sobeck Assistant Administrator for NOAA Fisheries National Marine Fisheries Service 1315 East West Highway Silver Spring, MD 20910 Email: [email protected] Petitioners Dr. Abel Valdivia on behalf of the Center for Biological Diversity 1212 Broadway #800, Oakland, CA 94612 Phone: 510-844-7103 [email protected] 2 Petition to list chambered nautilus under the ESA ____________________________________________________________________________________ Pursuant to Section 4(b) of the Endangered Species Act (“ESA”), 16 U.S.C.
    [Show full text]
  • Publication Data Luttrell, Gwendolyn Lewise Werth, 1927- Lexicon of New Formal Geologic Names of the United States, 1976-1980
    Lexicon of New For mal Geologic Names of the United States 1976-1980 By GWENDOLYN W. LUTTRELL, MARILYN L. HUBERT, and VIRGINIA M. JUSSEN U.S. GEOLOGICAL SURVEY BULLETIN 1564 A compilation of the new geologic names intmduced into the litrrature from 1976 to 1980 in the United States, Puerto Rico, Panama Canal Zone, and American Samoa UNITED STATES GOVERNMENT PRINTING OFFICE 1986 DEPARTMENT OF THE INTERIOR DONALD PAUL HODEL, Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Cataloging-in-Publication Data Luttrell, Gwendolyn Lewise Werth, 1927- Lexicon of new formal geologic names of the United States, 1976-1980. (U.S. Geological Survey bulletin ; 1564) "A compilation of the new geologic names introduced into the literature from 1976-1980 in the United States, Puerto Rico, Panama Canal Zone, and American Samoa." Supt. of Docs. no.: I. 19.3:1564 1. Geology, Stratigraphic-Nomenclature-United States. I. Hubert, Marilyn L. II. Jussen, Virginia M. III. Title. IV. Series. QE75.B9 no. 1564 1986 557.3 s 85--600349 [QE645] [551. 7'00973] For sale by the Distribution Branch, U.S. Geological Survey, 604 South Pickett Street, Alexandria, VA 22304 CONTENTS Page Introduction . • . • . • . • . • . • . • . 1 Selection of names for the lexicon . • . • . • . 1 Explanation of format . • . • . • . • . • . 2 Lexicon................................................ 3 TABLE Page Major geochronologic and chronostratigraphic units in use by the U.S. Geological Survey with age estimates of boundaries .....••.......•...•.•......• IV m IV LEXICON OF GEOLOGIC NAMES OF THE UNITED STATES Major geochronologic and chronostratigraphic units in use by the U.S. Geological Survey with age estimates of boundaries Subdivisions in use by the U.S.
    [Show full text]