Geological Survey Research 1962
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University Microfilms, Inc., Ann Arbor, Michigan GEOLOGY of the SCOTT GLACIER and WISCONSIN RANGE AREAS, CENTRAL TRANSANTARCTIC MOUNTAINS, ANTARCTICA
This dissertation has been /»OOAOO m icrofilm ed exactly as received MINSHEW, Jr., Velon Haywood, 1939- GEOLOGY OF THE SCOTT GLACIER AND WISCONSIN RANGE AREAS, CENTRAL TRANSANTARCTIC MOUNTAINS, ANTARCTICA. The Ohio State University, Ph.D., 1967 Geology University Microfilms, Inc., Ann Arbor, Michigan GEOLOGY OF THE SCOTT GLACIER AND WISCONSIN RANGE AREAS, CENTRAL TRANSANTARCTIC MOUNTAINS, ANTARCTICA DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University by Velon Haywood Minshew, Jr. B.S., M.S, The Ohio State University 1967 Approved by -Adviser Department of Geology ACKNOWLEDGMENTS This report covers two field seasons in the central Trans- antarctic Mountains, During this time, the Mt, Weaver field party consisted of: George Doumani, leader and paleontologist; Larry Lackey, field assistant; Courtney Skinner, field assistant. The Wisconsin Range party was composed of: Gunter Faure, leader and geochronologist; John Mercer, glacial geologist; John Murtaugh, igneous petrclogist; James Teller, field assistant; Courtney Skinner, field assistant; Harry Gair, visiting strati- grapher. The author served as a stratigrapher with both expedi tions . Various members of the staff of the Department of Geology, The Ohio State University, as well as some specialists from the outside were consulted in the laboratory studies for the pre paration of this report. Dr. George E. Moore supervised the petrographic work and critically reviewed the manuscript. Dr. J. M. Schopf examined the coal and plant fossils, and provided information concerning their age and environmental significance. Drs. Richard P. Goldthwait and Colin B. B. Bull spent time with the author discussing the late Paleozoic glacial deposits, and reviewed portions of the manuscript. -
Reevaluation of the Timing and Extent of Late Paleozoic Glaciation in Gondwana: Role of the Transantarctic Mountains
Reevaluation of the timing and extent of late Paleozoic glaciation in Gondwana: Role of the Transantarctic Mountains John L. Isbell Department of Geosciences, University of Wisconsin, Milwaukee, Wisconsin 53201, USA Paul A. Lenaker Rosemary A. Askin Byrd Polar Research Center, Ohio State University, Columbus, Ohio 43210, USA Molly F. Miller Department of Earth and Environmental Science, Vanderbilt University, Nashville, Tennessee 37235, USA Loren E. Babcock Department of Geological Sciences and Byrd Polar Research Center, Ohio State University, Columbus, Ohio 43210, USA ABSTRACT Evidence from Antarctica indicates that a 2000-km-long section of the Transantarctic MountainsÐincluding Victoria Land, the Darwin Glacier region, and the central Transantarctic MountainsÐwas not located near the center of an enormous Car- boniferous to Early Permian ice sheet, as depicted in many paleo- Figure 1. Carboniferous and geographic reconstructions. Weathering pro®les and soft-sediment Permian paleogeographic map deformation immediately below the preglacial (pre-Permian) un- of Gondwana (after Powell and Li, 1994), showing several hy- conformity suggest an absence of ice cover during the Carbonif- pothetical ice sheets. erous; otherwise, multiple glacial cycles would have destroyed these features. The occurrence of glaciotectonite, massive and strat- i®ed diamictite, thrust sheets, sandstones containing dewatering structures, and lonestone-bearing shales in southern Victoria Land and the Darwin Glacier region indicate that Permian sedimenta- tion occurred in ice-marginal, periglacial, and/or glaciomarine set- tings. No evidence was found that indicates the Transantarctic Mountains were near a glacial spreading center during the late Paleozoic. Although these ®ndings do not negate Carboniferous Powell, 1987; Ziegler et al., 1997; Scotese, 1997; Scotese et al., 1999; glaciation in Antarctica, they do indicate that Gondwanan glacia- Veevers, 2000, 2001). -
NEW HIGH-PRECISION POTASSIUM ISOTOPES of TEKTITES. Y. Jiang1,2, H
49th Lunar and Planetary Science Conference 2018 (LPI Contrib. No. 2083) 1311.pdf NEW HIGH-PRECISION POTASSIUM ISOTOPES OF TEKTITES. Y. Jiang1,2, H. Chen2, B. Fegley, Jr.2, K. Lodders2, W. Hsu3, S. B. Jacobsen4, K. Wang (王昆)2. 1CAS Key Laboratory of Planetary Sciences, Purple Moun- tain Observatory, Chinese Academy of Sciences ([email protected]), 2Dept. Earth & Planetary Sciences and McDonnell Center for the Space Sciences, Washington University in St. Louis ([email protected]), 3Space Sci- ence Institute, Macau University of Science and Technology, 4Dept. Earth & Planetary Sciences, Harvard University. Introduction: Tektites are natural glassy objects crater of Hawaii (BHVO-1), are also analyzed. Hainan formed from the melting and rapid cooling of terrestri- Tektite is a typical splash-form tektite from Hainan al rocks during the high-energy impacts of meteorites, Island, China and of a dumbbell shape. We analyzed K comets, or asteroids upon the surface of the Earth [1]. isotopes of 15 chips along the longitudinal axis of its Chemical and isotopic compositions indicate that pre- profile, on a Neptune Plus MC-ICP-MS at Washington cursor components of tektites are the upper terrestrial University in St. Louis [14]. Except for Hainan tektite, continental crust, rather than extraterrestrial rocks. all other samples were only analyzed in bulk, with a Tektites are characterized by the depletion of volatile GV Instruments IsoProbe P MC-ICP-MS at Harvard elements and water, and heavy Cd, Sn, Zn and Cu iso- University following the description in [13]. K isotope topic compositions [2-5]. Since volatilities of elements compositions are reported using the per mil (‰) nota- 41 41 39 41 39 are defined by their 50% condensation temperature (Tc) tion, where δ K = ([( K/ K)sample/( K/ K)standard – of the solar nebula gas at 10-4 bars [6], there is no rea- 1]×1000). -
Evidence for Impact-Generated Deposition
EVIDENCE FOR IMPACT-GENERATED DEPOSITION ON THE LATE EOCENE SHORES OF GEORGIA by ROBERT SCOTT HARRIS (Under the direction of Michael F. Roden) ABSTRACT Modeling demonstrates that the Late Eocene Chesapeake Bay impact would have been capable of depositing ejecta in east-central Georgia with thicknesses exceeding thirty centimeters. A coarse sand layer at the base of the Upper Eocene Dry Branch Formation was examined for shocked minerals. Universal stage measurements demonstrate that planar fabrics in some fine to medium sand-size quartz grains are parallel to planes commonly exploited by planar deformation features (PDF’s) in shocked quartz. Possible PDF’s are observed parallel to {10-13}, {10-11}, {10-12}, {11-22} and {51-61}. Petrographic identification of shocked quartz is supported by line broadening in X-ray diffraction experiments. Other impact ejecta recognized include possible ballen quartz, maskelynite, and reidite-bearing zircon grains. The layer is correlative with an unusual diamictite that contains goethite spherules similar to altered microkrystites. It may represent an impact-generated debris flow. These discoveries suggest that the Chesapeake Bay impact horizon is preserved in Georgia. The horizon also should be the source stratum for Georgia tektites. INDEX WORDS: Chesapeake Bay impact, Upper Eocene, Shocked quartz, Impact shock, Shocked zircon, Impact, Impact ejecta, North American tektites, Tektites, Georgiaites, Georgia Tektites, Planar deformation features, PDF’s, Georgia, Geology, Coastal Plain, Stratigraphy, Impact stratigraphy, Impact spherules, Goethite spherules, Diamictite, Twiggs Clay, Dry Branch Formation, Clinchfield Sand, Irwinton Sand, Reidite, Microkrystite, Cpx Spherules, Impact debris flow EVIDENCE FOR IMPACT-GENERATED DEPOSITION ON THE LATE EOCENE SHORES OF GEORGIA by ROBERT SCOTT HARRIS B. -
A Review of Evidence for a Gulf of Tonkin Location for the Australasian Tektite Source Crater Aubrey Whymark* Consultant Wellsite Geologist, Manila, Philippines
Thai Geoscience Journal 2(2), 2021, p. 1-29 1 Copyright © 2021 by the Department of Mineral Resources of Thailand ISSN-2730-2695; DOI-10.14456/tgj.2021.2 A review of evidence for a Gulf of Tonkin location for the Australasian tektite source crater Aubrey Whymark* Consultant Wellsite Geologist, Manila, Philippines. *Corresponding author: [email protected] Received 5 March 2021; Accepted 17 June 2021. Abstract Australasian tektites (AAT) occur across Southeast Asia, Australia, the Indian Ocean, and southwest Pacific Ocean. AAT form the youngest and most extensive major tektite strewn field. Unlike other tektite strewn fields, AAT have no known source crater. Review of the literature establishes that a single ~ 43 km post-impact diameter crater exists, possibly significantly enlarged by slumping. The obliquity of the impact that formed the AAT would result in a crater that is less pervasive in depth but with greater downrange shock effects and melt ejection. Multiple lines of evidence, historically viewed in isolation, were examined, concatenated, contextualized, and discussed. Tektite morpho- logy and distribution; microtektite regressions; geochemical considerations, comparisons, and iso- -concentration regressions; lithological characteristics; age of source rock; and regional geological considerations are reviewed. The source material is predicted to be an abnormally thick sequence of rapidly deposited, poorly compacted, deltaic to shallow marine, shales to clay-rich siltstones of early Pleistocene to Pliocene age. The impact likely occurred in a shallow marine environment. Forty- two maps of positive and negative parameters are presented and overlain. These indicate the AAT source crater probably lies in the central to northwestern Yinggehai - Song Hong Basin / Gulf of Tonkin. -
Heart & Vascular Institute
Sydell and Arnold Miller Family Heart & Vascular Institute 9500 Euclid Avenue, Cleveland, OH 44195 ClevelandClinic.org 2016 Outcomes 17-OUT-413 108369_CCFBCH_Cov_acg.indd 1 8/31/17 12:22 PM Measuring Outcomes Promotes Quality Improvement This project would not have been possible without the commitment and expertise of a team led by Umesh Khot, MD; Mouin Abdallah, MD; Sandra Hays; and Jagina McIntyre. Graphic design and photography were provided by Brian Kohlbacher and Cleveland Clinic’s Center for Medical Art and Photography. © The Cleveland Clinic Foundation 2017 108369_CCFBCH_Cov_acg.indd 2 9/19/17 10:57 AM Measuring and understanding outcomes of medical treatments promotes quality improvement. Cleveland Clinic has created a series of Outcomes books similar to this one for its clinical institutes. Designed for a physician audience, the Outcomes books contain a summary of many of our surgical and medical treatments, with a focus on outcomes data and a review of new technologies and innovations. The Outcomes books are not a comprehensive analysis of all treatments provided at Cleveland Clinic, and omission of a particular treatment does not necessarily mean we do not offer that treatment. When there are no recognized clinical outcome measures for a specific treatment, we may report process measures associated with improved outcomes. When process measures are unavailable, we may report volume measures; a relationship has been demonstrated between volume and improved outcomes for many treatments, particularly those involving surgical and -
Whiskeytown National Recreation Area Geologic Resource Evaluation Report
National Park Service U.S. Department of the Interior Natural Resource Program Center Whiskeytown National Recreation Area Geologic Resource Evaluation Report Natural Resource Report NPS/NRPC/GRD/NRR—2007/008 THIS PAGE & ON THE COVER: Whiskeytown Lake, Whiskeytown NRA, CA NPS Photos Whiskeytown National Recreation Area Geologic Resource Evaluation Report Natural Resource Report NPS/NRPC/GRD/NRR—2007/008 Geologic Resources Division Natural Resource Program Center P.O. Box 25287 Denver, Colorado 80225 June 2007 U.S. Department of the Interior Washington, D.C. The Natural Resource Publication series addresses natural resource topics that are of interest and applicability to a broad readership in the National Park Service and to others in the management of natural resources, including the scientific community, the public, and the NPS conservation and environmental constituencies. Manuscripts are peer- reviewed to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and is designed and published in a professional manner. Natural Resource Reports are the designated medium for disseminating high priority, current natural resource management information with managerial application. The series targets a general, diverse audience, and may contain NPS policy considerations or address sensitive issues of management applicability. Examples of the diverse array of reports published in this series include vital signs monitoring plans; "how to" resource management papers; proceedings of resource management workshops or conferences; annual reports of resource programs or divisions of the Natural Resource Program Center; resource action plans; fact sheets; and regularly- published newsletters. Views and conclusions in this report are those of the authors and do not necessarily reflect policies of the National Park Service. -
Ecological Site AX001X04X401 Cryic Udic Forest
Natural Resources Conservation Service Ecological site AX001X04X401 Cryic Udic Forest Last updated: 1/06/2021 Accessed: 09/26/2021 General information Provisional. A provisional ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model and enough information to identify the ecological site. MLRA notes Major Land Resource Area (MLRA): 001X–Northern Pacific Coast Range, Foothills, and Valleys This long and narrow resource area stretches along the Pacific Border Province of the Pacific Mountain System in Oregon and Washington. The area is bounded by the Olympic Mountains on the north and the Klamath Mountains on the south. Most of the area consists of hills and low mountains with gentle to steep slopes. The parent materials are composed primarily of young Tertiary sedimentary rocks with some minor volcanic rocks. Glacial till and outwash deposits are found in the northern half of the area within Washington. In the far southern portion of the area, near the Klamath Mountains, the sedimentary rocks are older and some have been metamorphosed. The average annual precipitation ranges from 60 to 200 inches, increasing with elevation. The dominant soil orders in this MLRA are Andisols, Inceptisols, and Ultisols. Soil depth ranges from shallow to very deep. While most soils in the area are well drained and occur on foothills, mountain slopes and ridges, floodplain and depressional soils can range from well drained to very poorly drained. Soil textures are typically medial, loamy, or clayey. The dominant soils in the area have a mesic or frigid soil temperature regime and a udic soil moisture regime; however, soils with an aquic soil moisture regime or cryic soil temperature regime do occur. -
Film Reviews.6
Page 75 FILM REVIEWS Black Swan (Dir. Darren Aronofsky) U SA 2010 20th Century Fox International “Done to death, I know. But not like this.” When Vincent Cassel’s leery ballet school director, Thomas Leroy, introduces his cast to the new season’s programme featuring ‘Swan Lake’, he describes how he will reinvent the classic ballet by stripping it down and making it visceral. To do this, he needs a new lead dancer, a woman capable of embodying the characters of both the innocent white swan and the seductive black swan. Darren Aronofsky’s Black Swan takes us on a journey from rehearsal to the stage as a delicate young woman, Nina Sayers (Natalie Portman), prepares for the role and undergoes a tragic transformation. Aronofsky’s latest film doesn’t so much delve into the world of ballet as use it as a pretty setting for his psychological tale of artistic obsession. Nina’s life consists of dancing and not much else. She appears to have no interests outside ballet and lives at home with her mother (Barbara Hershey as a truly terrifying composite of stage mother and classic horror psycho mother), whose grip on her daughter is far tighter than Nina’s own grip on reality. Already unpopular with the other dancers, and with suspicion surrounding her sudden elevation to prima ballerina, the introduction of a new dancer to the company (Mila Kunis) quite literally throws Nina off balance and forces the viewer to reel with her for the rest of the film as she tries unsuccessfully to regain her footing. -
Flynn Creek Crater, Tennessee: Final Report, by David J
1967010060 ASTROGEOLOGIC STUDIES / ANNUAL PROGRESS REPORT " July 1, 1965 to July 1, 1966 ° 'i t PART B - h . CRATERINVESTIGATIONS N 67_1_389 N 57-" .]9400 (ACCEC_ION [4U _" EiER! (THRU} .2_ / PP (PAGLS) (CO_ w ) _5 (NASA GR OR I"MX OR AD NUMBER) (_ATEGORY) DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOQICAL SURVEY • iri i i i i iiii i i 1967010060-002 ASTROGEOLOGIC STUDIES ANNUAL PROGRESS REPORT July i, 1965 to July I, 1966 PART B: CRATER INVESTIGATIONS November 1966 This preliminary report is distributed without editorial and technical review for conformity with official standards and nomenclature. It should not be quoted without permission. This report concerns work done on behalf of the National Aeronautics and Space Administration. DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY 1967010060-003 • #' C OING PAGE ,BLANK NO/" FILMED. CONTENTS PART B--CRATER INVESTIGATIONS Page Introduction ........................ vii History and origin of the Flynn Creek crater, Tennessee: final report, by David J. Roddy .............. 1 Introductien ..................... 1 Geologic history of the Flynn Creek crater ....... 5 Origin of the Flynn Creek crater ............ ii Conc lusions ...................... 32 References cited .................... 35 Geology of the Sierra Madera structure, Texas: progress report, by H. G. Wilshire ............ 41_ Introduction ...................... 41 Stratigraphy ...................... 41 Petrography and chemical composition .......... 49 S truc ture ....................... 62 References cited ............. ...... 69 Some aspects of the Manicouagan Lake structure in Quebec, Canada, by Stephen H. Wolfe ................ 71 f Craters produced by missile impacts, by H. J. Moore ..... 79 Introduction ...................... 79 Experimental procedure ................. 80 Experimental results .................. 81 Summary ........................ 103 References cited .................... 103 Hypervelocity impact craters in pumice, by H. J. Moore and / F. -
Geological Survey Research 1961 Synopsis of Geologic and Hydrologic Results
Geological Survey Research 1961 Synopsis of Geologic and Hydrologic Results GEOLOGICAL SURVEY PROFESSIONAL PAPER 424-A Geological Survey Research 1961 THOMAS B. NOLAN, Director GEOLOGICAL SURVEY PROFESSIONAL PAPER 424 A synopsis ofgeologic and hydrologic results, accompanied by short papers in the geologic and hydrologic sciences. Published separately as chapters A, B, C, and D UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1961 FOEEWOED The Geological Survey is engaged in many different kinds of investigations in the fields of geology and hydrology. These investigations may be grouped into several broad, inter related categories as follows: (a) Economic geology, including engineering geology (b) Eegional geologic mapping, including detailed mapping and stratigraphic studies (c) Eesource and topical studies (d) Ground-water studies (e) Surface-water studies (f) Quality-of-water studies (g) Field and laboratory research on geologic and hydrologic processes and principles. The Geological Survey also carries on investigations in its fields of competence for other Fed eral agencies that do not have the required specialized staffs or scientific facilities. Nearly all the Geological Survey's activities yield new data and principles of value in the development or application of the geologic and hydrologic sciences. The purpose of this report, which consists of 4 chapters, is to present as promptly as possible findings that have come to the fore during the fiscal year 1961 the 12 months ending June 30, 1961. The present volume, chapter A, is a synopsis of the highlights of recent findings of scientific and economic interest. Some of these findings have been published or placed on open file during the year; some are presented in chapters B, C, and D ; still others have not been pub lished previously. -
The Tennessee Meteorite Impact Sites and Changing Perspectives on Impact Cratering
UNIVERSITY OF SOUTHERN QUEENSLAND THE TENNESSEE METEORITE IMPACT SITES AND CHANGING PERSPECTIVES ON IMPACT CRATERING A dissertation submitted by Janaruth Harling Ford B.A. Cum Laude (Vanderbilt University), M. Astron. (University of Western Sydney) For the award of Doctor of Philosophy 2015 ABSTRACT Terrestrial impact structures offer astronomers and geologists opportunities to study the impact cratering process. Tennessee has four structures of interest. Information gained over the last century and a half concerning these sites is scattered throughout astronomical, geological and other specialized scientific journals, books, and literature, some of which are elusive. Gathering and compiling this widely- spread information into one historical document benefits the scientific community in general. The Wells Creek Structure is a proven impact site, and has been referred to as the ‘syntype’ cryptoexplosion structure for the United State. It was the first impact structure in the United States in which shatter cones were identified and was probably the subject of the first detailed geological report on a cryptoexplosive structure in the United States. The Wells Creek Structure displays bilateral symmetry, and three smaller ‘craters’ lie to the north of the main Wells Creek structure along its axis of symmetry. The question remains as to whether or not these structures have a common origin with the Wells Creek structure. The Flynn Creek Structure, another proven impact site, was first mentioned as a site of disturbance in Safford’s 1869 report on the geology of Tennessee. It has been noted as the terrestrial feature that bears the closest resemblance to a typical lunar crater, even though it is the probable result of a shallow marine impact.