Lithofacies Architecture of the Milk River Formation
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Stratigraphy, Age and Correlation of the Upper Cretaceous Tohatchi Formation, Western New Mexico Spencer G
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/54 Stratigraphy, age and correlation of the Upper Cretaceous Tohatchi Formation, western New Mexico Spencer G. Lucas, Dennis R. Braman, and Justin A. Spielmann, 2003, pp. 359-368 in: Geology of the Zuni Plateau, Lucas, Spencer G.; Semken, Steven C.; Berglof, William; Ulmer-Scholle, Dana; [eds.], New Mexico Geological Society 54th Annual Fall Field Conference Guidebook, 425 p. This is one of many related papers that were included in the 2003 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. -
Theropod Teeth from the Upper Maastrichtian Hell Creek Formation “Sue” Quarry: New Morphotypes and Faunal Comparisons
Theropod teeth from the upper Maastrichtian Hell Creek Formation “Sue” Quarry: New morphotypes and faunal comparisons TERRY A. GATES, LINDSAY E. ZANNO, and PETER J. MAKOVICKY Gates, T.A., Zanno, L.E., and Makovicky, P.J. 2015. Theropod teeth from the upper Maastrichtian Hell Creek Formation “Sue” Quarry: New morphotypes and faunal comparisons. Acta Palaeontologica Polonica 60 (1): 131–139. Isolated teeth from vertebrate microfossil localities often provide unique information on the biodiversity of ancient ecosystems that might otherwise remain unrecognized. Microfossil sampling is a particularly valuable tool for doc- umenting taxa that are poorly represented in macrofossil surveys due to small body size, fragile skeletal structure, or relatively low ecosystem abundance. Because biodiversity patterns in the late Maastrichtian of North American are the primary data for a broad array of studies regarding non-avian dinosaur extinction in the terminal Cretaceous, intensive sampling on multiple scales is critical to understanding the nature of this event. We address theropod biodiversity in the Maastrichtian by examining teeth collected from the Hell Creek Formation locality that yielded FMNH PR 2081 (the Tyrannosaurus rex specimen “Sue”). Eight morphotypes (three previously undocumented) are identified in the sample, representing Tyrannosauridae, Dromaeosauridae, Troodontidae, and Avialae. Noticeably absent are teeth attributed to the morphotypes Richardoestesia and Paronychodon. Morphometric comparison to dromaeosaurid teeth from multiple Hell Creek and Lance formations microsites reveals two unique dromaeosaurid morphotypes bearing finer distal denticles than present on teeth of similar size, and also differences in crown shape in at least one of these. These findings suggest more dromaeosaurid taxa, and a higher Maastrichtian biodiversity, than previously appreciated. -
North-Central Montana
Petrology of the Eagle Sandstone, Bearpaw Mountains Area, North-Central Montana By DONALD L. GAUTIER INVESTIGATIONS OF SHALLOW GAS RESERVOIRS IN THE NORTHERN GREAT PLAINS GEOLOGICAL SURVEY BULLETIN 1521 Prepared in cooperation with the U. S. Depart1Tl£nt of Energy Composition and burial history of an important conventional shallow methane reservoir in the northern Great Plains UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1981 UNITED STATES DEPARTMENT OF THE INTERIOR JAMES G. WATT, Secretary GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Cataloging in Publication Data . Gautier, Donald L. Petrology of the Eagle Sandstone, Bearpaw Mountains area, north-central Montana. (Investigations of shallow gas reservoirs in the northern Great Plains) (Geological Survey Bulletin 1521) Bibliography: p. 52 1. Sandstone-Montana-Bearpaw Mountains region. 2. Gas, Natural-Geology Montana-Bearpaw Mountains region. I. Title. II. Series. III. Series: Geological Survey Bulletin 1521. QE75.B9 no. 1521 [QE471.15.S25] 557.3s 81-607963 [552'.5] AACR2 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Page Absuact:---------------------------------------------------- 1 In~uction------------------------------------------------- 2 ~~un~--------------------------------------------- 4 Acknowledgments-------------------------------------- 5 Geologic Setting----------------------------------- 6 Hydrocarbons in the Eagle Sandstone------------------------ 8 Lithology---------------------------------------- -
FORT BELKNAP RESERVATION List of Topics
FORT BELKNAP RESERVATION List of Topics BACKGROUND Reservation Overview Regional Geologic Overview GEOLOGIC OVERVIEW Geologic History Summary of Play Types CONVENTIONAL PLAY TYPES Play 1 - Shallow Cretaceous Biogenic Gas Play Play 2 - Northern Plains Biogenic Gas Play Plays 3,4,5 - Jurassic/Cretaceous and Mississippian Plays UNCONVENTIONAL / HYPOTHETICAL PLAY TYPES Plays 6,7 - Fractured Bakken and Cambrian Sandstone Plays REFERENCES Historical Background of the OVERVIEW (i.e. joint ventures) in contrast to procedures and regulatory minimums imposed Assiniboine and Gros Ventre Tribes at Fort Belknap by the previous 1938 Minerals Leasing Act. The 1982 Act further provides that FORT BELKNAP RESERVATION The Fort Belknap Indian Reservation was created in 1887 as the home for the individual Indian allottees may join agreements negotiated for tribal lands. The Assiniboine and Gros Ventre Tribes Assiniboine and Gros Ventre Indian Tribes. The ancestors of these tribes have section entitled Operating Regulations discusses the procedures for obtaining lived on the northern plains for several centuries. The Assiniboine were allottee participance in the negotiated agreement. recognized by Europeans as part of the great Sioux Nation and speak a Siouan Principal components for the formal corporate proposal should include the TRIBAL HEADQUARTERS: Fort Belknap Agency, Montana language. However, their name is taken from a Chippewa word referring to area(s) of interest, type of contract, elaboration of proposed agreement terms, GEOLOGIC SETTING: Williston Basin "those who cook with stones." At some point in time the Assiniboine bands points of potential negotiation, diligence commitments (i.e. drilling), bonus broke with the traditional Sioux and allied themselves with the Cree. -
Unconventional Shallow Biogenic Gas Systems
Unconventional shallow AUTHORS George W. Shurr ϳ GeoShurr Resources, biogenic gas systems LLC, Rt. 1, Box 91A, Ellsworth, Minnesota, 56129; [email protected] George W. Shurr and Jennie L. Ridgley George W. Shurr is an independent geologist and partner in GeoShurr Resources, LLC. He recently retired from a thirty-year career of university teaching and consulting. His B.A. ABSTRACT degree is from the University of South Dakota, Unconventional shallow biogenic gas falls into two distinct systems his M.S. degree is from Northwestern that have different attributes. Early-generation systems have blan- University, and his Ph.D. is from the University of Montana. His research interests include ketlike geometries, and gas generation begins soon after deposition shallow gas systems on basin margins, of reservoir and source rocks. Late-generation systems have ringlike lineament block tectonics, and Cretaceous geometries, and long time intervals separate deposition of reservoir stratigraphy in the northern Great Plains. and source rocks from gas generation. For both types of systems, the gas is dominantly methane and is associated with source rocks Jennie L. Ridgley ϳ U.S. Geological Survey, that are not thermally mature. Box 25046, MS 939, Denver, Colorado, Early-generation biogenic gas systems are typified by produc- 80225-0046; [email protected] tion from low-permeability Cretaceous rocks in the northern Great Jennie Ridgley received her B.S. degree in Plains of Alberta, Saskatchewan, and Montana. The main area of mathematics from Pennsylvania State production is on the southeastern margin of the Alberta basin and University and M.S. degree in geology from the northwestern margin of the Williston basin. -
A Preliminary Assessment of Paleontological Resources at Bighorn Canyon National Recreation Area, Montana and Wyoming
A PRELIMINARY ASSESSMENT OF PALEONTOLOGICAL RESOURCES AT BIGHORN CANYON NATIONAL RECREATION AREA, MONTANA AND WYOMING Vincent L. Santucci1, David Hays2, James Staebler2 And Michael Milstein3 1National Park Service, P.O. Box 592, Kemmerer, WY 83101 2Bighorn Canyon National Recreation Area, P.O. Box 7458, Fort Smith, MT 59035 3P.O. Box 821, Cody, WY 82414 ____________________ ABSTRACT - Paleontological resources occur throughout the Paleozoic and Mesozoic formations exposed in Bighorn Canyon National Recreation Area. Isolated research on specific geologic units within Bighorn Canyon has yielded data on a wide diversity of fossil forms. A comprehensive paleonotological survey has not been previously undertaken at Bighorn Canyon. Preliminary paleontologic resource data is presented in this report as an effort to establish baseline data. ____________________ INTRODUCTION ighorn Canyon National Recreation Area (BICA) consists of approximately 120,000 acres within the Bighorn Mountains of north-central Wyoming and south-central Montana B (Figure 1). The northwestern trending Bighorn Mountains consist of over 9,000 feet of sedimentary rock. The predominantly marine and near shore sedimentary units range from the Cambrian through the Lower Cretaceous. Many of these formations are extremely fossiliferous. The Bighorn Mountains were uplifted during the Laramide Orogeny beginning approximately 70 million years ago. Large volumes of sediments, rich in early Tertiary paleontological resources, were deposited in the adjoining basins. This report provides a preliminary assessment of paleontological resources identified at Bighorn Canyon National Recreation Area. STRATIGRAPHY The stratigraphic record at Bighorn Canyon National Recreation Area extends from the Cambrian through the Cretaceous (Figure 2). The only time period during this interval that is not represented is the Silurian. -
Dinosaur Eggshells from the Lower Maastrichtian St. Mary River Formation of Southern Alberta, Canada
Canadian Journal of Earth Sciences Dinosaur eggshells from the lower Maastrichtian St. Mary River Formation of southern Alberta, Canada Journal: Canadian Journal of Earth Sciences Manuscript ID cjes-2017-0195.R1 Manuscript Type: Article Date Submitted by the Author: 13-Nov-2017 Complete List of Authors: Voris, Jared; University of Calgary, Geoscience; Zelenitsky, Darla; Department of Geoscience, Tanaka, Kohei; Nagoya Daigaku Hakubutsukan; University of Calgary, DepartmentDraft of Geoscience Therrien, François; Royal Tyrrell Museum of Palaeontology, Is the invited manuscript for consideration in a Special N/A Issue? : Keyword: eggshell, dinosaur, Cretaceous, Maastrichtian, Alberta https://mc06.manuscriptcentral.com/cjes-pubs Page 1 of 47 Canadian Journal of Earth Sciences 1 2 3 4 5 6 7 8 9 Dinosaur eggshells from the lower Maastrichtian St. Mary River Formation of southern 10 Alberta, Canada 11 12 Jared T. Voris, Darla K. Zelenitsky,Draft François Therrien, Kohei Tanaka 13 J. T. Voris, D. K. Zelenitsky, and K. Tanaka. Department of Geoscience, University of 14 Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada; [email protected], 15 [email protected], [email protected] 16 K. Tanaka. Nagoya University Museum, Nagoya University Furocho, Chikusa-Ku, Nagoya, 17 464-8601, Japan; [email protected] 18 F. Therrien. Royal Tyrrell Museum of Palaeontology, Box 7500, Drumheller, AB T0J 0Y0, 19 Canada.; [email protected] 20 1 https://mc06.manuscriptcentral.com/cjes-pubs Canadian Journal of Earth Sciences Page 2 of 47 1 2 Abstract–North America is known for its rich uppermost Cretaceous record of dinosaur egg 3 remains, although a notable fossil gap exists during the lower Maastrichtian. -
Resolution Revolution: Advances in Palynostratigraphy Over Three Decades Dennis R
Resolution Revolution: Advances in Palynostratigraphy Over Three Decades Dennis R. Braman, Royal Tyrrell Museum of Palaeontology, Box 7500, Drumheller, Alberta, T0J 0Y0, [email protected] Significant improvements in the ability of palynology to solve stratigraphic problems in the Upper Cretaceous-Paleocene strata of the southern part of the Alberta Basin have been made over the last three decades. This progress has developed in conjunction with similar improvements in other correlation tools including radiometric dating, strontium isotope dating, magnetostratigraphy, lithostratigraphy, and ammonite biostratigraphy. It is the purpose of this presentation to select a few representative examples which illustrate some of these advances with emphasis on the palynostratigraphy. Much of the material used in this research comes from surface exposures with the oldest significant exposures on the plains area being those of the Milk River Formation. Based on comparisons of the paleomagnetostratigraphic results of Leahy and Lerbekmo (1995) compared to those of Europe, Braman (2002) concluded that nearly the entire formation was Santonian in age in Alberta and there was a significant time gap of 2 to 3 million years between the Milk River and overlying Pakowki Formation in southern Alberta. A portion of this missing time interval is accounted for in the upper unnamed member of the Eagle Formation in the vicinity of the Missouri River in Montana between Eagle Creek and the Bearpaw Mountains (Payenberg et al., 2002). This member is entirely marine and represents a transgressive event that is entirely missing from exposures in southern plains area of Alberta. The Telegraph Creek, Virgelle, and Deadhorse Coulee members of the Milk River Formation can be directly correlated with the Telegraph Creek Formation and Virgelle and unnamed middle members of the Eagle Formation in that they have similar palynomorph assemblages. -
Preliminary Investigation of the Geologic Setting and Chemical Composition of the Pierre Shale Great Plains Region
Preliminary Investigation of the Geologic Setting and Chemical Composition of the Pierre Shale Great Plains Region GEOLOGICAL SURVEY PROFESSIONAL PAPER 390 Preliminary Investigation of the Geologic Setting and Chemical Composition of the Pierre Shale Great Plains Region By HARRY A. TOURTELOT GEOLOGICAL SURVEY PROFESSIONAL PAPER 390 A contribution to the geochemistry of sedimentary processes UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1962 UNITED STATES DEPARTMENT OF THE INTERIOR STEW ART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director The U.S. Geological Survey Library has cataloged this publication as follows: Tourtelot, Harry Allison, 1918- Preliminary investigation of the geologic setting and chemical composition of the Pierre shale, Great Plains region. Washington, U.S. Govt Print. Off., 1961. iv, 74 p. illus., maps, diagrs., tables. 30 cm. (U.S. Geological Survey. Professional paper 390) Part of illustrative matter in pocket. Bibliography: p. 69-72. 1. Shale Great Plains. 2. Geology Great Plains. 3. Bocks- Analysis. I. Title. II. Title: Pierre shale, Great Plains region. (Series) For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, B.C. CONTENTS Page Page Abstract.._ _-___-__-_--______-______-___--__-__--_- 1 Chemical composition Continued Introduction _______________________________________ 2 Major constituents Continued Relation of chemical composition and clay Plan of study, _____________________________________ 2 minerals._ ______-_--___-_-------_-------- 27 Acknowledgments__ ___-_-___---_-____---_--_______ 3 Changes in composition on weathering _.__ 27 Distribution of Pierre shale and equivalent rocks. ______ 3 Road cut, Fergus County, Mont _______ 28 Stratigraphic relations of the Pierre shale and equivalent Spillway of Oahe Dam, S. -
The Following File Is Part of the Grover Heinrichs Mining Collection
CONTACT INFORMATION Mining Records Curator Arizona Geological Survey 416 W. Congress St., Suite 100 Tucson, Arizona 85701 602-771-1601 http://www.azgs.az.gov [email protected] The following file is part of the Grover Heinrichs Mining Collection ACCESS STATEMENT These digitized collections are accessible for purposes of education and research. We have indicated what we know about copyright and rights of privacy, publicity, or trademark. Due to the nature of archival collections, we are not always able to identify this information. We are eager to hear from any rights owners, so that we may obtain accurate information. Upon request, we will remove material from public view while we address a rights issue. CONSTRAINTS STATEMENT The Arizona Geological Survey does not claim to control all rights for all materials in its collection. These rights include, but are not limited to: copyright, privacy rights, and cultural protection rights. The User hereby assumes all responsibility for obtaining any rights to use the material in excess of “fair use.” The Survey makes no intellectual property claims to the products created by individual authors in the manuscript collections, except when the author deeded those rights to the Survey or when those authors were employed by the State of Arizona and created intellectual products as a function of their official duties. The Survey does maintain property rights to the physical and digital representations of the works. QUALITY STATEMENT The Arizona Geological Survey is not responsible for the accuracy of the records, information, or opinions that may be contained in the files. The Survey collects, catalogs, and archives data on mineral properties regardless of its views of the veracity or accuracy of those data. -
GEOLOGIC MAP of the LIVINGSTON 30' X 60' QUADRANGLE
GEOLOGIC MAP OF THE LIVINGSTON 30' x 60' QUADRANGLE SOUTH-CENTRAL MONTANA By Richard B. Berg, David A. Lopez, and Jeffrey D. Lonn Montana Bureau of Mines and Geology Open File Report MBMG 406 2000 REVISIONS Map: 9/01 Map and text: 12/02 Map and text: 8/05 This map has been reviewed for conformity with technical and editorial standards of the Montana Bureau of Mines and Geology. Partial support has been provided by the STATEMAP component of the National Cooperative Geologic Mapping Program of the U. S. Geological Survey under Contract Number 99-HG-AG- 0130. Discussion An attempt was made in the Livingston quadrangle to preserve as much detail as possible at a scale of 1:100,000 from earlier maps at larger scales. Also stratigraphic units used by previous authors were maintained, even though they were not necessarily consistent from one map to another. For example, the Upper Cretaceous Livingston Group as described by Roberts (1963) consists in descending order of the Hoppers, Billman Creek, Miner Creek, and Cokedale Formations. North of Roberts’ maps, Skipp and others (1999) mapped and described the Sedan Formation, also of Upper Cretaceous age, in the same stratigraphic position as the Miner Creek and Cokedale Formations of the Livingston Group. Detailed mapping of the Sedan Formation and Livingston Group to the south should resolve this inconsistency. The Sliderock Mountain map unit (informal map unit Klsr) includes all the volcanic rocks erupted from the Sliderock Mountain stratovolcano (du Bray and others, 1994; Lopez, 2000). These rocks are herein included in the Livingston Group because that terminology is well established in the literature. -
The Letters F and T Refer to Figures Or Tables Respectively
INDEX The letters f and t refer to figures or tables respectively "A" Marker, 312f, 313f Amherstberg Formation, 664f, 728f, 733,736f, Ashville Formation, 368f, 397, 400f, 412, 416, Abitibi River, 680,683, 706 741f, 765, 796 685 Acadian Orogeny, 686, 725, 727, 727f, 728, Amica-Bear Rock Formation, 544 Asiak Thrust Belt, 60, 82f 767, 771, 807 Amisk lowlands, 604 Askin Group, 259f Active Formation, 128f, 132f, 133, 139, 140f, ammolite see aragonite Assiniboia valley system, 393 145 Amsden Group, 244 Assiniboine Member, 412, 418 Adam Creek, Ont., 693,705f Amundsen Basin, 60, 69, 70f Assiniboine River, 44, 609, 637 Adam Till, 690f, 691, 6911,693 Amundsen Gulf, 476, 477, 478 Athabasca, Alta., 17,18,20f, 387,442,551,552 Adanac Mines, 339 ancestral North America miogeocline, 259f Athabasca Basin, 70f, 494 Adel Mountains, 415 Ancient Innuitian Margin, 51 Athabasca mobile zone see Athabasca Adel Mountains Volcanics, 455 Ancient Wall Complex, 184 polymetamorphic terrane Adirondack Dome, 714, 765 Anderdon Formation, 736f Athabasca oil sands see also oil and gas fields, Adirondack Inlier, 711 Anderdon Member, 664f 19, 21, 22, 386, 392, 507, 553, 606, 607 Adirondack Mountains, 719, 729,743 Anderson Basin, 50f, 52f, 359f, 360, 374, 381, Athabasca Plain, 617f Aftonian Interglacial, 773 382, 398, 399, 400, 401, 417, 477f, 478 Athabasca polymetamorphic terrane, 70f, Aguathuna Formation, 735f, 738f, 743 Anderson Member, 765 71-72,73 Aida Formation, 84,104, 614 Anderson Plain, 38, 106, 116, 122, 146, 325, Athabasca River, 15, 20f, 35, 43, 273f, 287f, Aklak