SPRING 1978 Bulletin No. 34
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Glenrose.Pdf
LÉXICO ESTRATIGRÁFICO DE MÉXICO Glen Rose, Formación...........................................................Cretácico Temprano (Albiano) Referencia(s): Hill, R.T., 1891, The Comanche series of the Texas-Arkansas region: Geological Society of America Bulletin, v. 2, 503-528. Barnes, V.E., 1967, Geologic atlas of Texas, Sherman Sheet; Walter Scott Adkins memorial edition: University of Texas-Austin, Bureau of Economic Geology, 1 sheet, scale 1:250,000. Historia nomenclatural de la unidad: Hill (1891 en GEOLEX, 2007) utilizó el nombre de capas Glen Rose para diferenciar la parte superior del Grupo Trinity al referirse a las rocas que están expuestas a lo largo del Río Paluxy en las cercanías del poblado Glen Rose, en el Condado de Somerwell, Texas, Estados Unidos. Posteriormente, Freeman (1964 en GEOLEX, 2007) sustituye el término de capas por el de caliza Glen rose para una secuencia que aflora a lo largo del Río Grande en los Condados de Terrel y Brewster, Texas. Finalmente, Barnes (1967 en GEOLEX, 2007) es quien le da el rango de formación a dicha unidad. Localidad tipo: Se encuentra ubicada a lo largo del Río Paluxy en las inmediaciones del poblado de Glen Rose en el condado de Somerwell Texas, Estados Unidos (Hill, 1891). Descripción litológica: Esta formación consiste en gran parte de estratos de caliza, caliza arenosa, argilacea, alternando con estratos delgados de arcilla arenosa, arenisca y marga, los cuáles muestran diferente espesor, hacia la cima de dicha unidad la caliza es ligeramente más arenosa, también contiene material -
Early Cretaceous (Albian) Decapods from the Glen Rose and Walnut Formations of Texas, USA
Bulletin of the Mizunami Fossil Museum, no. 42 (2016), p. 1–22, 11 fi gs., 3 tables. © 2016, Mizunami Fossil Museum Early Cretaceous (Albian) decapods from the Glen Rose and Walnut formations of Texas, USA Carrie E. Schweitzer*, Rodney M. Feldmann**, William L. Rader***, and Ovidiu Fran㶥escu**** *Department of Geology, Kent State University at Stark, 6000 Frank Ave. NW, North Canton, OH 44720 USA <[email protected]> **Department of Geology, Kent State University, Kent, OH 44242 USA ***8210 Bent Tree Road, #219, Austin, TX 78759 USA ****Division of Physical and Computational Sciences, University of Pittsburgh Bradford, Bradford, PA 16701 USA Abstract Early Cretaceous (Albian) decapod crustaceans from the Glen Rose Limestone and the Walnut Formation include the new taxa Palaeodromites xestos new species, Rosadromites texensis new genus, new species, Karyosia apicava new genus new species, Aetocarcinus new genus, Aetocarcinus muricatus new species, and the new combinations Aetocarcinus roddai (Bishop, 1983), Necrocarcinus pawpawensis (Rathbun, 1935) and Necrocarcinus hodgesi (Bishop, 1983). These two formations have yielded a much less diverse decapod fauna than the nearly coeval and proximally deposited Pawpaw Formation. Paleoenvironment is suggested as a controlling factor in the decapod diversity of these units. Key words: Brachyura, Nephropidae, Dromiacea, Raninoida, Etyioidea, North America Introduction deposited in the shallow waters of a broad carbonate platform. Deposition occurred on the southeastern flank of Late Early Cretaceous decapod faunas from the Gulf the Llano Uplift and, on the seaward margin to the Coastal Plain of North America have been well reported northwest, behind the Stuart City Reef Trend. Coral and and described since the early part of the twentieth century rudist reefs, algal beds, extensive ripple marks, evaporites, (Rathbun, 1935; Stenzel, 1945). -
Map Showing Geology and Hydrostratigraphy of the Edwards Aquifer Catchment Area, Northern Bexar County, South-Central Texas
Map Showing Geology and Hydrostratigraphy of the Edwards Aquifer Catchment Area, Northern Bexar County, South-Central Texas By Amy R. Clark1, Charles D. Blome2, and Jason R. Faith3 Pamphlet to accompany Open-File Report 2009-1008 1Palo Alto College, San Antonio, TX 78224 2U.S. Geological Survey, Denver, CO 80225 3U.S. Geological Survey, Stillwater, OK 74078 U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY U.S. Department of the Interior DIRK KEMPTHORNE, Secretary U.S. Geological Survey Mark D. Myers, Director U.S. Geological Survey, Denver, Colorado: 2009 For product and ordering information: World Wide Web: http://www.usgs.gov/pubprod Telephone: 1-888-ASK-USGS For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment: World Wide Web: http://www.usgs.gov Telephone: 1-888-ASK-USGS Suggested citation: Clark, A.R., Blome, C.D., and Faith, J.R, 2009, Map showing the geology and hydrostratigraphy of the Edwards aquifer catchment area, northern Bexar County, south- central Texas: U.S. Geological Survey Open-File Report 2009-1008, 24 p., 1 pl. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted material contained within this report. 2 Contents Page Introduction……………………………………………………………………….........……..…..4 Physical Setting…………………………………………………………..………….….….….....7 Stratigraphy……………..…………………………………………………………..….…7 Structural Framework………………...……….……………………….….….…….……9 Description of Map Units……………………………………………………….…………...….10 Summary……………………………………………………………………….…….……….....21 References Cited………………………………………….…………………………...............22 Figures 1. -
Carbonate Factory Response and Recovery After Ocean Anoxic Event 1A, Pearsall Formation, Central Texas
Copyright by Esben Skjold Pedersen 2020 The Thesis Committee for Esben Skjold Pedersen Certifies that this is the approved version of the following Thesis: Carbonate Factory Response and Recovery after Ocean Anoxic Event 1a, Pearsall Formation, Central Texas APPROVED BY SUPERVISING COMMITTEE: Charles Kerans, Supervisor Toti E. Larson, Co-Supervisor Daniel O. Breecker Carbonate Factory Response and Recovery after Ocean Anoxic Event 1a, Pearsall Formation, Central Texas by Esben Skjold Pedersen Thesis Presented to the Faculty of the Graduate School of The University of Texas at Austin in Partial Fulfillment of the Requirements for the Degree of Master of Science in Geological Sciences The University of Texas at Austin August 2020 Dedication To my parents for their endless support. To my sister, aunt, and uncle for opening my eyes to the world of the geological sciences. Acknowledgements Firstly, I would like to thank my co-supervisors, Charlie Kerans and Toti Larson, for the opportunity to continue my education as a graduate student at the University of Texas at Austin, and their wisdom both within and outside of the realm of geoscience. I would also like to thank Dan Breecker for serving on my committee, and for his advice during my time at UT. I am grateful to Equinor for investing in my research and education in the geological sciences while as a graduate student. I would like to thank Rob Forkner in particular, for his guidance and direction. I would like to thank the Staff at the Bureau of Economic Geology, including Nathan Ivicic, Brandon Williamson, and Rudy Lucero for their help and problem solving in the core warehouse, especially during COVID-19 restrictions, and to Evan Sivil for his help with pXRF dataset acquisition and guidance. -
Groundwater Flow Systems in Multiple Karst Aquifers of Central Texas
GROUNDWATER FLOW SYSTEMS IN MULTIPLE KARST AQUIFERS OF CENTRAL TEXAS Brian A. Smith Barton Springs/Edwards Aquifer Conservation District, 1124 Regal Row, Austin, Texas, 78748, USA, [email protected] Brian B. Hunt Barton Springs/Edwards Aquifer Conservation District, 1124 Regal Row, Austin, Texas, 78748, USA, [email protected] Douglas A. Wierman Blue Creek Consulting, LLC, 400 Blue Creek Drive, Dripping Springs, Texas, 78620, USA, [email protected] Marcus O. Gary Edwards Aquifer Authority, 1615 N. St. Mary’s Street, San Antonio, Texas, 78215, USA, [email protected] Abstract hydrogeologic and resource evaluations and modeling of Increased demand for groundwater in central Hays the Middle Trinity Aquifer. County is prompting studies to evaluate the availability of groundwater in the Trinity Aquifers of central Texas. Introduction These aquifers, consisting mostly of limestone, dolomite, With limited surface water, central Texas is fortunate to and marl, exhibit varying degrees of karstification. Near have the Edwards and Middle Trinity karst aquifer systems the surface, karst features such as caves and sinkholes are that provide a variety of groundwater resources. The karstic evident, but are widely scattered. Even at depths greater Edwards Aquifer has been recognized for decades as a vital than 400 m (1,300 ft), units that are mostly limestone show groundwater resource, and thus many studies have been some degree of karstification where dissolution along published from Hill and Vaugh (1898) to recent (Hauwert fractures has caused development of conduits. Studies are and Sharp, 2014) that characterize the nature of the aquifer being conducted to better understand the horizontal and and its groundwater flow system. -
Carbonate Sedimentology and Facies Correlation of the Mason Mountain Wildlife Management Area: Mason, TX
CARBONATE SEDIMENTOLOGY AND FACIES CORRELATION OF THE MASON MOUNTAIN WILDLIFE MANAGEMENT AREA MASON, TX An Undergraduate Research Scholars Thesis by JOHN CAMPBELL CRAIG Submitted to the Undergraduate Research Scholars program Texas A&M University in partial fulfillment of the requirements for the designation as an UNDERGRADUATE RESEARCH SCHOLAR Approved by Research Advisor: Dr. Juan Carlos Laya May 2016 Major: Geology TABLE OF CONTENTS Page ABSTRACT .................................................................................................................................. 1 DEDICATION .............................................................................................................................. 3 ACKNOWLEDGEMENTS .......................................................................................................... 4 NOMENCLATURE ..................................................................................................................... 5 CHAPTER I INTRODUCTION ................................................................................................ 6 Geologic setting of study ...................................................................................... 7 Carbonate formation ........................................................................................... 10 Carbonate classification ...................................................................................... 11 II METHODS ........................................................................................................ -
Guidebook to the Geology of Travis County.Pdf (4.815Mb)
Page | 1 Guidebook to the Geology of Travis County: Preface Geology of the Austin Area, Travis County, Texas Keith Young When Robert T. Hill first came to Austin, Texas, as the first professor of geology, he described Austin and its surrounding area as an ideal site for a school of geology because it offered such varied outcrops representing rocks of many ages and varieties. Although Hill resigned his position about 85 years ago, the opportunities of the local geology have not changed. Hill (Hill, 1889) implies the intent of writing a series of papers to describe the geology of the local area for all who might be interested. The authors of this volume hope that they have fulfilled in large measure Hill's original intent. No product can ever be all things to all users, but we have presented here common geological phenomenon for many, including the description of an ancient volcano, the description of faulting that occurred in the Austin area in the past, a geologic history of the Austin area, a description of the local rocks, including their classification, field trips for interested observers of the geologic scene, collecting localities for the lovers of fossils, and resource places and agencies. We cannot emphasize enough that many unique geological phenomena are on private property. Please do not trespass, obtain permission. And if permission is not granted, observe from a distance. There are sufficient areas of geologic interest in the Austin area to please all without antagonizing landowners and making it even more difficult for the next person. Page | 2 Guidebook to the Geology of Travis County: Author's Note A useful guide to the geology of the Austin area has long been a goal. -
Early Cretaceous (Albian) Spores and Pollen from the Glen Rose Formation of Texas and Their Significance for Correlation of the Potomac Group
UC Davis UC Davis Previously Published Works Title Early Cretaceous (Albian) spores and pollen from the Glen Rose Formation of Texas and their significance for correlation of the Potomac Group Permalink https://escholarship.org/uc/item/7z38083b Journal Palynology, 42(4) ISSN 0191-6122 Authors Tanrikulu, S Doyle, JA Delusina, I Publication Date 2018-10-02 DOI 10.1080/01916122.2017.1374309 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Palynology ISSN: 0191-6122 (Print) 1558-9188 (Online) Journal homepage: http://www.tandfonline.com/loi/tpal20 Early Cretaceous (Albian) spores and pollen from the Glen Rose Formation of Texas and their significance for correlation of the Potomac Group Sinem Tanrikulu, James A. Doyle & Irina Delusina To cite this article: Sinem Tanrikulu, James A. Doyle & Irina Delusina (2017): Early Cretaceous (Albian) spores and pollen from the Glen Rose Formation of Texas and their significance for correlation of the Potomac Group, Palynology, DOI: 10.1080/01916122.2017.1374309 To link to this article: https://doi.org/10.1080/01916122.2017.1374309 Published online: 20 Nov 2017. Submit your article to this journal View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=tpal20 Download by: [73.2.105.88] Date: 20 November 2017, At: 21:34 PALYNOLOGY, 2017 https://doi.org/10.1080/01916122.2017.1374309 Early Cretaceous (Albian) spores and pollen from the Glen Rose Formation -
Ground-Water Availability of the Lower Cretaceous Formations in the Hill
Report 273 GROUND- WA TER AVAILABILITY OF THE LOWER CRETACEOUS FORMATIONS IN THE HILL COUNTRY OF SOUTH- CENTRAL TEXAS TEXAS DEPARTMENT OF WATER RESOURCES January 1983 “‘._ __ __.. TEXAS DEPARTMENT OF WATER RESOURCES REPORT 273 GROUND-WATER AVAILABILITY OF THE LOWER CRETACEOUS FORMATIONS IN THE HILL COUNTRY OF SOUTH-CENTRAL TEXAS John B. Ashworth, Geologist January 1983 TEXAS DEPARTMENT OF WATER RESOURCES Charles E. Nemir, Executive Director TEXAS WATER DEVELOPMENT BOARD Louis A. Beecherl Jr., Chairman George W. McCleskey, Vice Chairman Glen E. Roney Lonnie A. “Bo” Pilgrim W. 0. Bankston Louie Welch TEXAS WATER COMMISSION Lee B. M. Biggart, Chairman Felix McDonald, Commissioner John D. Stover, Commissioner Authorization for use or reproduction of any original material contained in this publication, i.e., not obtained from other sources, is freely granted The Department would appreciate acknowledgement. Published and distributed by the Texas Department of Water Resources Post Office Box 13087 Austin, Texas 78711 TABLE OF CONTENTS Page CONCLUSIONS . INTRODUCTION Purpose and Scope Location and Extent 2 Geography. 2 Topography and Drainage. 2 Population. 2 Economy and Land Use 3 Vegetation . 3 Climate. 3 Previous Investigations . 3 Acknowledgements. 3 Well-Numbering System 7 Definition of Terms . 8 Metric Conversions . 9 GEOLOGY AS RELATED TO THE OCCURRENCE OF GROUND WATER. 9 Depositional History 9 Stratigraphy 9 Structure . 10 STRATIGRAPHY OF THE WATER-BEARING UNITS. 19 Pre-Cretaceous Rocks 19 Trinity Group. 19 Lower Trinity Aquifer 19 iii TABLE OF CONTENTS-Continued Page Middle Trinity Aquifer . 19 Upper Trinity Aquifer 33 Fredericksburg Group 33 Quaternary Alluvium 33 CHEMICAL QUALITY OF GROUND WATER AS RELATED TO USE 33 General Chemical Quality of Ground Water 33 Public Supply. -
Early Evolution of Titanosauriform Sauropod Dinosaurs by Michael
Early evolution of titanosauriform sauropod dinosaurs by Michael Daniel DʼEmic A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Geology) in The University of Michigan 2011 Committee: Associate Professor Jeffrey A. Wilson, chair Assistant Professor Catherine Badgley Professor Tomasz K. Baumiller Professor Daniel C. Fisher Professor Rob van der Voo © Michael DʼEmic 2011 ACKNOWLEDGEMENTS First, I would like to thank my dissertation committee: C. Badgley, T. Baumiller, D. Fisher, R. van der Voo, and J. A. Wilson for advice and guidance during the project. Special thanks to J. A. Wilson for constant support, guidance, and research opportunities over the years. Thanks for field assistance and support from P. Christenson, T. Churchill, B. Dauksewicz, B. Foreman, P. Gingerich, A. Hayden, D. Klein, S. Macone, C. Manz, K. Melstrom, D. Raisanen, A. Tillett, and C. Youngs. Thanks to M. Fox (YPM), D. Nixon (SMU), C. Manz, K. Melstrom, and B. Sanders (UM) for preparation. Special thanks to A. Pan, L. Ballinger (FWMSH) and D. Colodner (ASDM) for permission to destructively sample limb bones for histology, and M. Sander and K. Stein for helpful technical information about drilling sauropod bones. Thanks to D. C. Fisher for use of thin-sectioning equipment and K. M. Smith for assistance. J. A. Wilson, M. Wedel and R. Barnes kindly provided parts of figures 4.1, 4.6 and 4.7, respectively. Thanks to the administrative staff of the UM Geological Sciences Department, especially N. Kingsbury and A. Hudon for much help over the years. Collections managers and curators at the following institutions are thanked for their help and hospitality, without which this dissertation certainly would not have been possible: C. -
IN MEMORY of ROBERT LOUIS FOLK 30 September 1925 – 4 June 2018
IN MEMORY OF ROBERT LOUIS FOLK 30 September 1925 – 4 June 2018 Robert Folk in a marble quarry in Lipari, Italy. IN MEMORY OF ROBERT LOUIS FOLK Compiled by Murray Felsher, Miles Hayes, Lynton Land, Earle McBride, and Kitty Milliken Produced by Joe Holmes, Research Planning, Inc. Murray Felsher, Ph.D. 1971 FOLKLORE – FIRST CONTACT Having never met him, I knew Robert L. Folk only by reputation. I had left Amherst MA and the University of Massachusetts, where I had undertaken my M.S. work. It was August 1961, and I was married two months earlier. I had spent the summer as a Carnegie College Teaching Intern teaching an Introductory Geology class at CCNY, where I had earned my B.S. As a native New Yorker, I rarely traveled west of the Hudson, and had never been west of the Mississippi. Gathering meager funds and overloading our VW Beetle with all our belongings, we were to be strangers in a strange land, wherein lived strange people who spoke a strangely attractive version of English. I had earlier applied to only two schools for my Ph.D. --- the Massachusetts Institute of Technology and the University of Texas at Austin, and was accepted by both. When I approached H.T.U. Smith --- chairman of the UMass Geology Department, for whom I served as a Graduate Teaching Assistant during my years there --- for his advice on where I should pursue my doctorate, he unhesitatingly said “Texas. Bob Folk is there. Without question, Texas.” But I did have a question or two, and H.T.U. -
Faults Identified Using the Aerial Photo Analysis Were Ground Truthed, Then
new study area fault map. Schumacher and Saller (2008) measured strike and dip on over 230 structural features in the area. Refernece Appendix 3. A rose diagram of the faults and fractures in the Cypress Creek watershed is included as Figure 23. The measured faults and fractures trend 45–60° (the major strike of the BFZ) or are conjugate features offset by 60°(105–120°). A study was performed by to delineate critical karst regions within Hays County as part of the Hays County Habitat Conservation Plan (www.hayscountyhcp.com). Figure 24 shows all geologic outcrops that may contain caves and karst features and also delineates areas with known caves and karst features. A number of the mapped karst features occur within the Cypress Creek/Jacob‘s Well study area (Figure 24). 8.0 Occurrence and Flow of Groundwater Figure 23. Structure Measurements—Rose Diagram 8.1 Precipitation The amount of annual precipitation has varied greatly since the USGS gauging station was installed in Jacob‘s Well in April 2005. Since then, there have been two drought periods, April 2005–February 2007 and September 2007–June 2008. As measured by NOAA in Wimberley (Table 3), the average monthly rainfall during the two drought events was 2.1‖ and 1.4‖, respectively. The period March 2007 through August 2007 was significantly wetter, with average monthly rain fall exceeding 7.3‖. Over the entire period of record as measured in Austin, TX since 1856, average annual rainfall is 33.57‖, or an average of 2.8‖ per month. 8.2 Hydrostratigraphy of the Cypress Creek Area Within the Cypress Creek area the principal Figure 24.