GEOLOGIC MAP of the EKALAKA 30' X 60' QUADRANGLE, EASTERN
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South Dakota to Nebraska
Geological Society of America Special Paper 325 1998 Lithostratigraphic revision and correlation of the lower part of the White River Group: South Dakota to Nebraska Dennis O. Terry, Jr. Department of Geology, University of Nebraska—Lincoln, Lincoln, Nebraska 68588-0340 ABSTRACT Lithologic correlations between type areas of the White River Group in Nebraska and South Dakota have resulted in a revised lithostratigraphy for the lower part of the White River Group. The following pedostratigraphic and lithostratigraphic units, from oldest to youngest, are newly recognized in northwestern Nebraska and can be correlated with units in the Big Badlands of South Dakota: the Yellow Mounds Pale- osol Equivalent, Interior and Weta Paleosol Equivalents, Chamberlain Pass Forma- tion, and Peanut Peak Member of the Chadron Formation. The term “Interior Paleosol Complex,” used for the brightly colored zone at the base of the White River Group in northwestern Nebraska, is abandoned in favor of a two-part division. The lower part is related to the Yellow Mounds Paleosol Series of South Dakota and rep- resents the pedogenically modified Cretaceous Pierre Shale. The upper part is com- posed of the unconformably overlying, pedogenically modified overbank mudstone facies of the Chamberlain Pass Formation (which contains the Interior and Weta Paleosol Series in South Dakota). Greenish-white channel sandstones at the base of the Chadron Formation in Nebraska (previously correlated to the Ahearn Member of the Chadron Formation in South Dakota) herein are correlated to the channel sand- stone facies of the Chamberlain Pass Formation in South Dakota. The Chamberlain Pass Formation is unconformably overlain by the Chadron Formation in South Dakota and Nebraska. -
Fossil Amphibians and Reptiles from the Neogene Locality of Maramena (Greece), the Most Diverse European Herpetofauna at the Miocene/Pliocene Transition Boundary
Palaeontologia Electronica palaeo-electronica.org Fossil amphibians and reptiles from the Neogene locality of Maramena (Greece), the most diverse European herpetofauna at the Miocene/Pliocene transition boundary Georgios L. Georgalis, Andrea Villa, Martin Ivanov, Davit Vasilyan, and Massimo Delfino ABSTRACT We herein describe the fossil amphibians and reptiles from the Neogene (latest Miocene or earliest Pliocene; MN 13/14) locality of Maramena, in northern Greece. The herpetofauna is shown to be extremely diverse, comprising at least 30 different taxa. Amphibians include at least six urodelan (Cryptobranchidae indet., Salamandrina sp., Lissotriton sp. [Lissotriton vulgaris group], Lissotriton sp., Ommatotriton sp., and Sala- mandra sp.), and three anuran taxa (Latonia sp., Hyla sp., and Pelophylax sp.). Rep- tiles are much more speciose, being represented by two turtle (the geoemydid Mauremys aristotelica and a probable indeterminate testudinid), at least nine lizard (Agaminae indet., Lacertidae indet., ?Lacertidae indet., aff. Palaeocordylus sp., ?Scin- cidae indet., Anguis sp., five morphotypes of Ophisaurus, Pseudopus sp., and at least one species of Varanus), and 10 snake taxa (Scolecophidia indet., Periergophis micros gen. et sp. nov., Paraxenophis spanios gen. et sp. nov., Hierophis cf. hungaricus, another distinct “colubrine” morphotype, Natrix aff. rudabanyaensis, and another dis- tinct species of Natrix, Naja sp., cf. Micrurus sp., and a member of the “Oriental Vipers” complex). The autapomorphic features and bizarre vertebral morphology of Perier- gophis micros gen. et sp. nov. and Paraxenophis spanios gen. et sp. nov. render them readily distinguishable among fossil and extant snakes. Cryptobranchids, several of the amphibian genera, scincids, Anguis, Pseudopus, and Micrurus represent totally new fossil occurrences, not only for the Greek area, but for the whole southeastern Europe. -
The Brule-Gering (Oligocene-Miocene) Contact in the Wildcat Ridge Area of Western Nebraska
CORE Metadata, citation and similar papers at core.ac.uk Provided by UNL | Libraries University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Bulletin of the University of Nebraska State Museum Museum, University of Nebraska State 1967 The Brule-Gering (Oligocene-Miocene) Contact in the Wildcat Ridge Area of Western Nebraska C. Bertrand Schultz University of Nebraska Charles H. Falkenbach Nebraska State Museum Carl F. Vondra American Museum of Natural History Follow this and additional works at: https://digitalcommons.unl.edu/museumbulletin Part of the Entomology Commons, Geology Commons, Geomorphology Commons, Other Ecology and Evolutionary Biology Commons, Paleobiology Commons, Paleontology Commons, and the Sedimentology Commons Schultz, C. Bertrand; Falkenbach, Charles H.; and Vondra, Carl F., "The Brule-Gering (Oligocene-Miocene) Contact in the Wildcat Ridge Area of Western Nebraska" (1967). Bulletin of the University of Nebraska State Museum. 58. https://digitalcommons.unl.edu/museumbulletin/58 This Article is brought to you for free and open access by the Museum, University of Nebraska State at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Bulletin of the University of Nebraska State Museum by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. BULLETIN OF The University of Nebraska State Museum VOLUME 6 , NUMBER 4 SEPTEMBER 1967 C. Bertrand Schultz Charles H. Falkenbach Carl F. Vondra The Brule-Gering (Oligocene-Miocene) Contact in the Wildcat Ridge Area of Western Nebraska A Guide for the Stratigraphic Collecting of Fossil Mammals The University of Nebraska The Board of Regents RICHARD E. ADKINs J. G. ELLIOTI B. N. GREENBERG, M.D. RICHARD L. -
The Cretaceous-Tertiary Boundary Interval in Badlands National Park, South Dakota
The Cretaceous-Tertiary Boundary Interval in Badlands National Park, South Dakota Philip W. Stoffer1 Paula Messina John A. Chamberlain, Jr. Dennis O. Terry, Jr. U.S. Geological Survey Open-File Report 01-56 2001 U.S. DEPARTMENT OF THE INTERIOR Gale A. Norton, Secretary U.S. GEOLOGICAL SURVEY Charles G. Groat, Director The Cretaceous/Tertiary (K-T) boundary study interval at the Rainbow Colors Overlook along Badlands Loop Road, North Unit of Badlands National Park. This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 1345 Middlefield Road, Menlo Park, CA 94025 http://geopubs.wr.usgs.gov/open-file/of01-056/ ABSTRACT A marine K-T boundary interval has been identified throughout the Badlands National Park region of South Dakota. Data from marine sediments suggest that deposits from two asteroid impacts (one close, one far away) may be preserved in the Badlands. These impact- generated deposits may represent late Maestrichtian events or possibly the terminal K-T event. Interpretation is supported by paleontological correlation, sequence stratigraphy, magnetostratigraphy, and strontium isotope geochronology. This research is founded on nearly a decade of NPS approved field work in Badlands National Park and a foundation of previously published data and interpretations. The K-T boundary occurs within -
GEOLOGY of the INTERMOUNTAIN WEST an Open-Access Journal of the Utah Geological Association ISSN 2380-7601 Volume 8 2021
GEOLOGY OF THE INTERMOUNTAIN WEST an open-access journal of the Utah Geological Association ISSN 2380-7601 Volume 8 2021 CARBONATE MOUND SPRINGS OF THE UPPER JURASSIC MORRISON FORMATION OF CENTRAL MONTANA AND THEIR PALEOCLIMATIC SIGNIFICANCE FOR THE NORTHERN FORELAND BASIN Dean R. Richmond, John Pigott, Richard Lupia, Michael Behm, and David Hein © 2021 Utah Geological Association. All rights reserved. For permission to copy and distribute, see the following page or visit the UGA website at www.utahgeology.org for information. Email inquiries to [email protected]. GEOLOGY OF THE INTERMOUNTAIN WEST an open-access journal of the Utah Geological Association ISSN 2380-7601 Volume 8 2021 Editors 2020–2021 UGA Board Douglas A. Sprinkel Thomas C. Chidsey, Jr. President Riley Brinkerhoff [email protected] 406.839.1375 President-Elect John South [email protected] 385.266.2113 Azteca Geosolutions Utah Geological Survey Program Chair Maria Slack [email protected] 801.810.9154 801.391.1977 801.824.0738 Treasurer Brent Greenhalgh [email protected] 385.626.8972 [email protected] [email protected] Secretary Ryan Gall [email protected] 801.537.3312 [email protected] Past President Leslie Heppler [email protected] 801.538.5257 John R. Foster Bart J. Kowallis Utah Field House of Brigham Young University Natural History State Park UGA Committees 801.380.2736 Museum Environmental Affairs Craig Eaton [email protected] 801.633.9396 [email protected] 435.789.3799 Geologic Road Sign Greg Gavin [email protected] 801.541.6258 eutretauranosuchus@ Historian Paul Anderson [email protected] 801.364.6613 Steven Schamel Membership Rick Ford [email protected] 801.626.6942 gmail.com GeoX Consulting, Inc. -
GEOLOGIC MAP of the LAME DEER 30' X 60' QUADRANGLE
GEOLOGIC MAP OF THE ALZADA 30' x 60' QUADRANGLE, EASTERN MONTANA Compiled and mapped by Susan M. Vuke, Edith M. Wilde, Roger B. Colton, and Robert N. Bergantino Montana Bureau of Mines and Geology Open File Report MBMG 433 2001 This report has been reviewed for conformity with Montana Bureau of Mines and Geology’s technical and editorial standards. Partial support has been provided by the STATEMAP component of the National Cooperative Geology Mapping Program of the U.S. Geological Survey under contract Number 00-HQ-AG-0115. CORRELATION DIAGRAM ALZADA 30' x 60' QUADRANGLE Qal Qls ? Holocene Quaternary Qat unconformity ? Pleistocene QTat Pliocene unconformity Tertiary Tar Eocene unconformity Khc unconformity Kftl Kftc Fox Hills Fm. Kp Kpg Kn Upper Cretaceous Cretaceous Kca Kgr Kbf Km Lower Cretaceous Knc 2. DESCRIPTION OF MAP UNITS ALZADA 30' x 60' QUADRANGLE Note: Thicknesses are given in feet because original field maps were on 7.5’ quadrangles with contour intervals in feet. To convert feet to meters (the contour interval unit on this map), multiply feet x 0.3048. Qal Alluvium (Holocene)—Light-gray to tan gravel, sand, silt, and clay deposited in stream and river channels and on flood plains. Clasts are subangular to well rounded. Deposits are poorly to well stratified and poorly to well sorted. Thickness generally less than 20 ft but as much as 30 ft. Qls Landslide deposit (Holocene and Pleistocene?)—Mass-wasting deposit of stable to unstable, unsorted mixtures of sediment. Deposit primarily as rotated or slumped blocks of bedrock and surficial sediment. Color and lithology reflect that of parent rock and transported surficial deposits. -
Depositional History of the Chadron Formation in North Dakota
Depositional History of the Chadron Formation in North Dakota by Clint A. Boyd1 and John R. Webster2 1North Dakota Geological Survey 2Geosciences, Minot State University REPORT OF INVESTIGATION NO. 120 NORTH DAKOTA GEOLOGICAL SURVEY Edward C. Murphy, State Geologist Lynn D. Helms, Director Dept. of Mineral Resources 2018 Table of Contents Abstract ........................................................................................................................................... v Acknowledgements ........................................................................................................................ vi Introduction ..................................................................................................................................... 1 Late Eocene Paleosols of North Dakota ......................................................................................... 3 Paleosols at White and Haystack Buttes (Stark County) ............................................................ 4 Description of Section 1 .......................................................................................................... 5 Description of Section 2 .......................................................................................................... 7 History of Paleosol Development ......................................................................................... 13 Interpretation ......................................................................................................................... 16 -
The Sidney Gravel and Kimball Formation; Supposed Parts of the Ogallala Group (Neogene), Are Not Objectively Mappable Units
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Papers in Natural Resources Natural Resources, School of January 1990 The Sidney Gravel and Kimball Formation; Supposed Parts of the Ogallala Group (Neogene), Are Not Objectively Mappable Units Robert F. Diffendal University of Nebraska - Lincoln, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/natrespapers Part of the Natural Resources and Conservation Commons Diffendal, Robert F., "The Sidney Gravel and Kimball Formation; Supposed Parts of the Ogallala Group (Neogene), Are Not Objectively Mappable Units" (1990). Papers in Natural Resources. 137. https://digitalcommons.unl.edu/natrespapers/137 This Article is brought to you for free and open access by the Natural Resources, School of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Papers in Natural Resources by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. The Sidney Gravel and Kimball Formation; Supposed Parts of the Ogallala Group (Neogene), Are Not Objectively Mappable Units Robert F. Diffendal, Jr. Conservation and Survey Division. IANR University of Nebraska-Lincoln Lincoln. Nebraska 68588 Abstract In the 1930·s. G. L. Lueninghoener and A. L. Lugn prepared geologic maps of several counties. including Kimball and Cheyenne in the southern Nebraska Panhandle. for the Nebraska Geological Survey. Rock units designated as the Kimball Formation and the underlying Sidney Gravel were shown on these maps. Studies by Swinehart (1974). Breyer (1975. 1981). and Dlffendal (1985) demonstrated that these units could not be defined in several areas in western Nebraska. Results of this study show clearly that the Kimball Formation and Sidney Gravel cannot be traced for more than a few kilometers from their type areas. -
Geologic Resources Inventory Ancillary Map Information Document for Scotts Bluff National Monument
U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Directorate Geologic Resources Division Scotts Bluff National Monument GRI Ancillary Map Information Document Produced to accompany the Geologic Resources Inventory (GRI) Digital Geologic Data for Scotts Bluff National Monument scbl_geology.pdf Version: 10/17/2014 I Scotts Bluff National Monument Geologic Resources Inventory Ancillary Map Information Document for Scotts Bluff National Monument Table of Contents Geolog.i.c. .R...e..s.o..u..r.c..e..s.. .I.n..v.e..n..t.o..r..y. .M...a..p.. .D..o..c..u..m...e..n..t....................................................................... 1 About th..e.. .N...P..S.. .G...e..o..l.o..g..i.c. .R...e..s.o..u..r.c..e..s.. .I.n..v.e..n..t.o..r..y. .P...r.o..g..r.a..m........................................................... 2 GRI Dig.i.t.a..l. .M...a..p..s. .a..n..d.. .S...o..u..r.c..e.. .M..a..p.. .C...i.t.a..t.i.o..n..s........................................................................... 4 GRI Dig.i.t.a..l. .G...e..o..l.o..g..i.c. .M...a..p.. .o..f. .S..c..o..t.t.s.. .B..l.u..f.f. .N..a..t.i.o..n..a..l. .M...o..n..u..m...e..n..t.,. .N..e..b..r.a..s..k..a................................ 5 Map Un..it. .L..i.s..t................................................................................................................................................................. 5 Map Un..it. .D...e..s..c..r.i.p..t.io..n..s.................................................................................................................................................... 6 Anthr.o..p..o..g..e..n..ic. -
Synoptic Taxonomy of Major Fossil Groups
APPENDIX Synoptic Taxonomy of Major Fossil Groups Important fossil taxa are listed down to the lowest practical taxonomic level; in most cases, this will be the ordinal or subordinallevel. Abbreviated stratigraphic units in parentheses (e.g., UCamb-Ree) indicate maximum range known for the group; units followed by question marks are isolated occurrences followed generally by an interval with no known representatives. Taxa with ranges to "Ree" are extant. Data are extracted principally from Harland et al. (1967), Moore et al. (1956 et seq.), Sepkoski (1982), Romer (1966), Colbert (1980), Moy-Thomas and Miles (1971), Taylor (1981), and Brasier (1980). KINGDOM MONERA Class Ciliata (cont.) Order Spirotrichia (Tintinnida) (UOrd-Rec) DIVISION CYANOPHYTA ?Class [mertae sedis Order Chitinozoa (Proterozoic?, LOrd-UDev) Class Cyanophyceae Class Actinopoda Order Chroococcales (Archean-Rec) Subclass Radiolaria Order Nostocales (Archean-Ree) Order Polycystina Order Spongiostromales (Archean-Ree) Suborder Spumellaria (MCamb-Rec) Order Stigonematales (LDev-Rec) Suborder Nasselaria (Dev-Ree) Three minor orders KINGDOM ANIMALIA KINGDOM PROTISTA PHYLUM PORIFERA PHYLUM PROTOZOA Class Hexactinellida Order Amphidiscophora (Miss-Ree) Class Rhizopodea Order Hexactinosida (MTrias-Rec) Order Foraminiferida* Order Lyssacinosida (LCamb-Rec) Suborder Allogromiina (UCamb-Ree) Order Lychniscosida (UTrias-Rec) Suborder Textulariina (LCamb-Ree) Class Demospongia Suborder Fusulinina (Ord-Perm) Order Monaxonida (MCamb-Ree) Suborder Miliolina (Sil-Ree) Order Lithistida -
Paleontological Resources Technical Report Riley Ridge to Natrona Project DECEMBER 2018
U.S. Department of the Interior Bureau of Land Management Paleontological Resources Technical Report Riley Ridge to Natrona Project DECEMBER 2018 Table of Contents 1.0 Introduction ......................................................................................................................................... 1 2.0 Regional Setting .................................................................................................................................. 1 3.0 Inventory Methodology ....................................................................................................................... 1 4.0 Potential Fossil-Bearing Geologic Formations ................................................................................... 4 4.1 Browns Park Formation (PFYC 3) ............................................................................................ 4 4.2 White River Formation or Group (PFYC 5) .............................................................................. 5 4.3 Wind River Formation (PFYC 5) .............................................................................................. 5 4.4 Green River Formation (PFYC 5) ............................................................................................. 5 4.5 Wasatch Formation (PFYC 5) ................................................................................................... 5 4.6 Battle Spring Formation (PFYC 3)............................................................................................ 6 4.7 Bridger Formation -
Summary Description of the Geologic Environment of the Lignite Fields of the Williston Basin in North Dakota Is Intended to Provide The
SUMMARY DESCRIPTION OF THE GEOLOGIC ENVIRONMENT OF THE WILLISTON BASIN LIGNITE FIELDS, NORTH DAKOTA Donald E. Trimble, compiler U.S. Geological Survey Open-file Report 78-920 This report is preliminary and has not been edited or reviewed for conformity with U.S. Geological Survey standards and nomenclature. Contents Page Introduction (untitled) 1 Sources of information 5 Physiographic description 6 ___ ^^ _ _ - ____ Q£ ____ _._-__ _ _._._-__^^__ _ ____________________ -_-.-_-__ ______ _ ._^________-___ ___ ______ 7^ Glaciated Missouri Plateau section 7 Unglaciated Missouri Plateau section 10 Geologic description 14 ""lJLgJL />V*O dpiljr T~»V_ tT«__» _ _» ___ __ ._ _ __ __»___ ___» __ __ __ _ _»__ _-»__.»___ X*r1 /I Pre-Hell Creek strata 16 Hell Creek Formation (Upper Cretaceous) 18 Fort Union Formation (Paleocene) 19 Golden Valley Formation (upper Paleocene and lower Eocene) 21 White River Formation or Group (Oligocene) 22 Chadron Formation 23 isruxe j orma t i.on'~^"~"~"~""> ""~'"~'"~'"~' ""~' ""~'^*>" ""~'"""""~' " " ""~'"~'^ " ""~'"~'~" ""~'^ -.j Arikaree Formation (Miocene) 23 Glacial deposits (Pleistocene) 24 Alluvium (Pleistocene and Holocene) 25 Page Geologic description Continued Stratigraphy Continued Landslide deposits (Holocene) 25 Structure 26 Williston Basin 26 Fold s 28 Fractures 29 Landscape geochemistry by Jon J. Connor - 31 Physical properties of the Fort Union Formation by E. E. McGregor, and W. K. Smith 52 Geologic hazards 61 Slope stability of the Fort Union Formation by W. Z. Savage - 62 Slope stability calculations - 62 Conclusions -. 57 Landslides by Roger B. Colton 68 Surface subsidence by C.