DOCSLIB.ORG

A Case Study of Mcfaddin Beach, Texas Volume I

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A Case Study of Mcfaddin Beach, Texas Volume I OCS Study MMS 99-0068 SPATIAL DATA ANALYSIS OF ARTIFACTS REDEPOSITED BY COASTAL EROSION: A CASE STUDY OF MCFADDIN BEACH, TEXAS VOLUME I U.S. Department of the Interior Minerals Management Service ERRATA SHEET Page 121 (corrects symbol used for latitude and longitude degrees from 0 to 0) Table 10. OPS Coordinates of McFaddin Beach Landmarks Landmark Latitude Longitude Accuracy 1. Water Tank 29° 39' 30.95" N 94° 06' 7.09" W ± 15 meters 2. Cattle Pens (east) 29° 38' 45.02" N 94° 08' 12.94" W ± 15 meters 3. ARCO Pipeline 29° 37' 16.37" N 94° 11' 59.77" W ±9 meters 4. Chevron Facility 29° 36;28" N 94° 14'0l"W ±30meters 5. Salt Cedar Tree 29° 35' 27.02" N 94° 16' 42.66" W ± 15 meters 6. YeHow Trailers 29° 34' 44.06" N 94° 18' 31.41" W ± 12 meters 7. Cattle Pens (west) 29° 34' 04.34" N '94° 20' 15.47" W ± 15 meters 8. Intersection of Highways 87 & 124 29° 32' 58" N 94° 23'17"W ±30meters Page 143 (corrects symbols used in equation and in the text discussing the equation) !e= 1/(2 t{i) where p =(n-l)lA where n is the number ofpoints in the data set where A z's the area in square meters ofthe study area Randomness (R) of the spatial distribution of a data set is determined by the actual mean distance to the nearest neighbor (fo) for the data set divided by the expected mean distance to the nearest neighbor for a random distribution of the same number of points (Fe). If the R value is close to 1.0, the distribution is random; if R is less than 1.0, the distribution tends towards clustering; and if R is greater than 1.0, the distribution tends towards regularity_ OCS Study MMS 99-0068 SPATIAL DATA ANALYSIS OF ARTIFACTS REDEPOSITED BY COASTAL EROSION: A CASE STUDY OF MCFADDIN BEACH, TEXAS by Melanie J. Stright Eileen M. Lear James F. Bennett Prepared for U.S. Department of the Interior Minerals Management Service Herndon, VA December 1999 SPATIAL DATA ANALYSIS OF ARTIFACTS REDEPOSITED BY COASTAL EROSION: A CASE STUDY OF MCFADDIN BEACH, TEXAS BY Melanie J. Stright ABSTRACT This study was undertaken to test the proposition that significant archaeological information can be extracted from a secondary deposit of artifacts found along a rapidly eroding coastline. The study area is McFaddin Beach, a 32-kilometer-long stretch of shoreline along the southeast coast of Texas. The artifacts included in the study were collected over a period of 26 years by five local collectors who kept detailed maps and records of each artifact find. The diagnostic artifacts in the study collection represent all cultural periods from Paleoindian to Historic. The method of analysis used a Geographic Information System, ARC/INFO, to synthesize information on the paleogeography of the coastal area where the lag deposit of artifacts was found and to conduct spatial analysis of the individual artifacts and their attributes. The results of the study indicate that even though the primary archaeological context of the artifacts has been destroyed, by reconstructing the larger paleogeographic context of the eroded sites and studying the attributes and spatial distribution of the artifacts in the lag deposit, some important archaeological conclusions can be drawn. iii These conclusions include information on how the prehistoric human populations of the McFaddin Beach area shifted through time and why, the general activities and the lithic procurement strategies of these populations, and the possible locations of the original archaeological sites from which the artifacts were eroded. iv ACKNOWLEDGMENTS This study was funded entirely by the U.S. Department of the Interior, Minerals Management Service, in support of their sand and gravel leasing program. Words truly are inadequate to express my deep gratitude to the following people for their assistance in completing this study. Without the diligent efforts of Paul Tanner of Port Arthur, Texas, there would have been no useable data upon which to base this study. In 1983, Paul began keeping detailed records of the artifacts he found at McFaddin Beach, including numbering the artifacts, recording each find in a log book, and plotting the artifacts on a base map. Paul also encouraged other collectors to begin keeping similar records. Throughout the study, Paul continued to provide maps, references, photos, and most importantly his ideas, which I hope have been accurately reflected in this final manuscript. I would also like to thank Paul’s wife, Nell, for graciously allowing me the use of their home as a base of operations and for always making me feel welcome. I am also extremely grateful to the other four collectors, whose artifact collections were used in this study, for their diligent efforts in keeping detailed records of their artifact finds, and for entrusting me with their artifact collections for weeks at a time. These include Murray Brown and Joe Coen, both of Groves, Texas; Jessie Fremont of Orange Field, Texas; and Joe Louvier of Port Arthur, Texas. v I am deeply indebted to the following people for their assistance in helping me analyze the artifacts and compile the artifact database. John Greene, archaeologist for the Minerals Management Service, Gulf of Mexico Region, provided invaluable assistance to me in obtaining the GPS positions for the landmarks along McFaddin Beach. John also assisted me in defining the level of mechanical wear and in recording the ultraviolet light responses of the artifacts in the study collection. Larry D. Banks, then Senior Fellow, Institute for the Study of Earth and Man, Southern Methodist University, and Nathan Banks, a graduate student in Anthropology at the University of Texas at Arlington, provided me technical assistance in the identification of the lithic source materials for the artifacts in the study collection. The lithic source identifications were an invaluable addition to the study. Dr. Dee Ann Story, Professor Emeritus in Anthropology, University of Texas at Austin, volunteered her time to assist me in identifying the diagnostic types of the artifacts in the study collection. Dee Ann’s assistance contributed immeasurably to the quality of the study results. Dr. Bob Morton of the Bureau of Economic Geology, University of Texas at Austin, provided much needed background information on the geology of the McFaddin Beach area. He also provided me the ARC/INFO coverages of the historic shoreline positions for McFaddin Beach used in the study. I could not have completed the ARC/INFO analysis for this study without the assistance of James F. Bennett, Environmental Protection Specialist for the Environmental Division, Minerals Management Service, in Herndon, Virginia. Jim was the brains behind vi some of the more difficult ARC/INFO procedures, such as mathematically correcting the distortion in the collector’s artifact locations. Whenever I hit an ARC/INFO wall, Jim was there to pick me up and point me in the right direction. Words really cannot adequately express the thanks I owe to Eileen Lear, Writer/Editor for the Environmental Division, Minerals Management Service, Herndon, Virginia, who prepared all of the figures, tables, and appendices for the report from my very rough drafts. Eileen spent almost as much time working on the report as I did in writing it. Her professionalism and the quality of her work vastly improved the quality of the report. Finally, I would like to thank Professors Richard J. Dent and Charles W. McNett of the American University, Washington, D.C., and Dr. Lawrence E. Aten, for their careful review of the study report and for providing suggestions that greatly improved the quality of the final report. vii TABLE OF CONTENTS VOLUME I ABSTRACT ................................................................................................................... iii ACKNOWLEDGMENTS ............................................................................................... v LIST OF TABLES ....................................................................................................... xvi LIST OF FIGURES .................................................................................................... xvii Chapter I. INTRODUCTION ............................................................................................... 1 Research Problem ................................................................................................ 1 Description of the Study Area .............................................................................. 5 Theoretical Framework ........................................................................................ 6 Methodology ........................................................................................................ 8 II. CURRENT STATE OF KNOWLEDGE ............................................................. 10 Previous Research at McFaddin Beach ................................................................ 10 Literature on Disturbed Sites ............................................................................... 11 III. PALEOENVIRONMENTAL SETTING OF THE STUDY AREA .................... 15 Paleogeography ................................................................................................... 15 Paleoshorelines .................................................................................................... 22 Method for Reconstructing Paleoshoreline Positions ................................ 23 Paleoclimate ........................................................................................................ 30 IV. ARTIFACT ANALYSIS ....................................................................................
Load more

Recommended publications
  • Us Department of the Interior
    U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Palynological Data from the Imperial and Palm Spring Formations, Anza-Borrego Desert State Park, California by R. Parley Fleming! U.S. Geological Survey Open-File Report 93-678 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 1 Denver, Colorado 1993 TABLE OF CONTENTS Introduction ...........................................................................................3 Acknowledgments ...................................................................................3 Regional Geology and Stratigraphy ................................................................3 Materials and Methods ...............................................................................4 Age Control ...........................................................................................4 Pliocene Palynology .................................................................................7 Reworked Cretaceous Pollen .......................................................................7 Implications of Reworked Pollen for Pliocene Climate ..........................................8 Conclusions ...........................................................................................9 References ...........................................................................................10
    [Show full text]
  • Stratigraphic Record of Pliocene-Pleistocene Basin Evolution
    STRATIGRAPHIC RECORD OF PLIOCENE-PLEISTOCENE BASIN EVOLUTION AND DEFORMATION ALONG THE SAN ANDREAS FAULT, MECCA HILLS, CALIFORNIA by JAMES CARLTON MCNABB A THESIS Presented to the Department of Geological Sciences and the Graduate School of the University of Oregon in partial fulfillment of the requirements for the degree of Master of Science December 2013 THESIS APPROVAL PAGE Student: James Carlton McNabb Title: Stratigraphic Record of Pliocene-Pleistocene Basin Evolution and Deformation Along the San Andreas Fault, Mecca Hills, California This thesis has been accepted and approved in partial fulfillment of the requirements for the Master of Science degree in the Department of Geological Sciences by: Dr. Rebecca J. Dorsey Chairperson Dr. Ray J. Weldon II Member Dr. Josh J. Roering Member and Kimberly Andrews Espy Vice President for Research and Innovation; Dean of the Graduate School Original approval signatures are on file with the University of Oregon Graduate School. Degree awarded December 2013 ii © 2013 James Carlton McNabb iii THESIS ABSTRACT James Carlton McNabb Master of Science Department of Geological Sciences December 2013 Title: Stratigraphic Record of Pliocene-Pleistocene Basin Evolution and Deformation Along the San Andreas Fault, Mecca Hills, California Sedimentary rocks in the Mecca Hills record a 3-4 Myr history of basin evolution and deformation within the southern San Andreas fault (SAF) zone. Detailed geologic mapping, measured sections, lithofacies analysis, and preliminary paleomagnetic data indicate that sedimentation and deformation in the Mecca Hills resulted from evolution of local fault zone complexities superimposed on regional subsidence and uplift. Sediment was derived from sources northeast of the SAF and transported southeast along the fault zone in large rivers, alluvial fans, and a smaller fault-bounded lake.
    [Show full text]
  • Southern Exposures
    Searching for the Pliocene: Southern Exposures Robert E. Reynolds, editor California State University Desert Studies Center The 2012 Desert Research Symposium April 2012 Table of contents Searching for the Pliocene: Field trip guide to the southern exposures Field trip day 1 ���������������������������������������������������������������������������������������������������������������������������������������������� 5 Robert E. Reynolds, editor Field trip day 2 �������������������������������������������������������������������������������������������������������������������������������������������� 19 George T. Jefferson, David Lynch, L. K. Murray, and R. E. Reynolds Basin thickness variations at the junction of the Eastern California Shear Zone and the San Bernardino Mountains, California: how thick could the Pliocene section be? ��������������������������������������������������������������� 31 Victoria Langenheim, Tammy L. Surko, Phillip A. Armstrong, Jonathan C. Matti The morphology and anatomy of a Miocene long-runout landslide, Old Dad Mountain, California: implications for rock avalanche mechanics �������������������������������������������������������������������������������������������������� 38 Kim M. Bishop The discovery of the California Blue Mine ��������������������������������������������������������������������������������������������������� 44 Rick Kennedy Geomorphic evolution of the Morongo Valley, California ���������������������������������������������������������������������������� 45 Frank Jordan, Jr. New records
    [Show full text]
  • Ocotillo Wind Express Project
    PALEONTOLOGICAL SURVEY REPORT: OCOTILLO WIND EXPRESS PROJECT Prepared for: Carrie Simmons Bureau of Land Management El Centro Field Office 1661 S. 4th Street El Centro CA 92243 Prepared by: Paleo Solutions, Inc. 2035 Placentia Ave, Suite D Costa Mesa, CA 92627 (562) 818-7713 Author: Geraldine Aron, Principal Investigator; and Jennifer Kelly, Staff Paleontologist [email protected] April 7, 2011 Paleo Solutions Inc. Table of Contents 1.0 EXECUTIVE SUMMARY ..................................................................................................... 4 2.0 INTRODUCTION ................................................................................................................... 6 3.0 PALEONTOLOGICAL RESOURCES ................................................................................... 9 4.0 Methods................................................................................................................................... 10 4.1 Project Location .................................................................................................................. 10 4.2 Personnel ............................................................................................................................. 10 4.3 Records Searches ................................................................................................................ 10 4.4 Literature Searches.............................................................................................................. 10 4.5 Geologic Map Review .......................................................................................................
    [Show full text]
  • India's Geoheritage
    A DEVELOPMENT AND ENVIRONMENT FORTNIGHTLY 120 ` PRICE OU Y and HY P RA SSUE 25-26, NO. 136-137, 2019 136-137, NO. 25-26, SSUE I G VOL. 19, GEO INDIa’s SPECTACULAR GEOHERITAGE SITES LADAKH: THE INDIA-EURASIA COLLISION REGION E RRA MATTI DIBBALU: COASTAL RED SAND DUNES OF VISAKHAPATNAM THE CLIFFS OF VARKALA LONAR: THE IMPACT CRATER ZAWAR: WORLd’s oLdesT ZINC MINING AND METALLURGY SITE Appeal: Purchase copies to download. Help keep G’nY viable. Please do not share. Appeal: Purchase copies to download. Help keep G’nY viable. Please do not share. G’nY SINCE 2001 A DEVELOPMENT AND GEOGRAPHYANDYOU.COM GEOGRAPHY AND YOU ENVIRONMENT FORTNIGHTLY VOL. 19 ISSUE 25 & 26 No. 136 & 137 2019 INDIA’S SPECTACULAR GEOHERITAGE SITES 6 Conserving Indian Geoheritage: the Geopark Approach Manjit Kumar Mazumdar and Bidisha Bayan Global geopark networks have successfully contributed to the conservation and development of important geological sites by granting them a special status. India, despite having numerous significant geosites has not been designated a single global geopark till date. 16 Stromatolites: The Building Blocks of Life Mukund Sharma Signatures of evolution of the earliest life forms on earth—prolific growth of stromatolites are found in carbonate rocks deposited between 3900 and 541 million years ago. 26 Ladakh: The India-Eurasia Collision Region Satish C Tripathi Ladakh records the India-Eurasia plate collision, evolution of Himalaya and the present day drainage system. 36 Erra Matti Dibbalu: Coastal Red Sand Dunes of Visakhapatnam D Rajasekhar Reddy Owing to its geological significance, Geological Survey of India declared it a National Geoheritage Site in 2014 and the Government of Andhra Pradesh notified it as a Protected Area in 2016.
    [Show full text]
  • Sedimentation and Deformation in a Pliocene–Pleistocene Transtensional Supradetachment Basin, Laguna Salada, North-West Mexico R
    Basin Research (1999) 11, 205–221 Sedimentation and deformation in a Pliocene–Pleistocene transtensional supradetachment basin, Laguna Salada, north-west Mexico R. Dorsey* and A. Martı´n-Barajas† Department of Geological Sciences, 1272 University of Oregon, Eugene, OR 97403–1272, USA †Departamento de Geologı´a, Centro de Investigacio´ n Cientı´fica y de Educacio´ n Superior de Ensenada, Baja California, Mexico ABSTRACT This study examines a thick section of Pliocene–Pleistocene sedimentary rocks exposed in the footwall of an active normal fault (Can˜on Rojo fault) near its intersection with the dextral- normal Laguna Salada fault in north-western Mexico. These rocks are situated in the upper plate of an inactive strand of the Can˜ada David detachment fault, which is cut on the north- east by the Laguna Salada fault. The stratigraphy is divided into three unconformity-bounded sequences: (1) marine mudstone of the Pliocene Imperial Formation; (2) nonmarine Pliocene– Pleistocene redbeds, consisting of sedimentary breccia, conglomerate, conglomeratic sandstone (all un-named) and fine-grained sandstone and mudstone of the Palm Spring Formation; and (3) uncemented Pleistocene boulder gravel. Coarse deposits of the redbeds sequence were deposited in fault-bounded, high- and low-gradient alluvial fans that passed laterally into a low-energy fluvial plain of the ancestral Colorado River (Palm Spring Formation) which occupied the present-day Laguna Salada. Detailed mapping reveals convergence and lap-out of bedding surfaces in the redbeds sequence onto the west limb of a large anticline cored by Imperial Formation. These geometries, combined with fanning dips and thickening of stratigraphy into the flanking syncline, indicate that the anticline grew during deposition of the redbeds.
    [Show full text]
  • Geohydrologic Reconnaissance of the Imperial Valley, California I GEOLOGICAL SURVEY PROFESSIONAL PAPER 486-K
    Geohydrologic Reconnaissance of the Imperial Valley, California I GEOLOGICAL SURVEY PROFESSIONAL PAPER 486-K II Geohydrologic Reconnaissance of the Imperial Valley, California By O. J. LOELTZ, BURDGE IRELAN, J. H. ROBISON, and F. H. OLMSTED WATER RESOURCES OF LOWER COLORADO RIVER-SALTON SEA AREA GEOLOGICAL SURVEY PROFESSIONAL PAPER 486-K UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1975 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress catalog-card No. 75-600003 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 - Price $2.85 (paper cover) Stock Number 024-001-02609 CONTENTS Page Page Abstract _______________________________ Kl Hydrology Continued Introduction ____________________________ 2 Sources of ground-water recharge _____________ K19 Purpose of the investigation ________________ 3 Colorado River ________________ 19 Location and climate ____________________ 3 Imported water _____________ 19 Previous investigations ___________________ 3 Leakage from canals __________ 19 Methods of investigation __________________ 3 Underflow from tributary areas _____ 20 Acknowledgments ______________________ 3 Precipitation and runoff __________ 20 Well-numbering system ___________________ 5 Movement of ground water ___________ 23 Geologic setting __________________________ 5 Discharge of ground water ___________ 23 Landforms ___________________________ 5 Springs ____________________ 23 Eastern Imperial Valley
    [Show full text]
  • Geologic Units of California
    UNITED STATES DEPARTMENT OF THE INTERIOR Ray Lyman Wilbur, Secretary GEOLOGICAL SURVEY George Oils Smith, Director Bulletin 826 NAMES AND DEFINITIONS OF THE GEOLOGIC UNITS OF CALIFORNIA COMPILED BY M.GRACE WILMARTH UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON: 1931 For snle by the Superintendent of Documents, Washington, D. C. ----- Price 20 cents PREFACE By T. W. STANTON In Bulletin 769, " The geologic time classification of the United States Geological Survey," by M. Grace Wilmarth, secretary of the committee on geologic names, it was announced that Miss. Wilmarth had in preparation a more extended compilation which will form a stratigraphic lexicon of the United States, containing definitions of all the geologic formations that have been named and described in this country. Work on this compilation is making good progress and has now reached a stage where it is possible to give geologists a sample of the lexicon, which will be locally useful and at the same time give them an opportunity to make helpful criticisms both of the character of the material to be included in the larger work and of the form in which it is presented. It happens that California is almost completely isolated from the other States in its stratigraphic development and that the great local variations in sedimentation within its borders, epecially in Tertiary time, have caused the naming of an unusual number of formations. Less than half a dozen of the formations named in California extend into Oregon and Washington, and the number that come into eastern California from Nevada is not much larger. It is therefore thought desirable to issue the " Names and definitions of the geologic units of California " as a separate publication.
    [Show full text]
  • Stratigraphic Record of Pliocene-Pleistocene Basin Evolution and Deformation Along the San Andreas Fault, Mecca Hills, California
    STRATIGRAPHIC RECORD OF PLIOCENE-PLEISTOCENE BASIN EVOLUTION AND DEFORMATION ALONG THE SAN ANDREAS FAULT, MECCA HILLS, CALIFORNIA by JAMES CARLTON McNABB A THESIS Presented to the Department of Geological Sciences and the Graduate School of the University of Oregon in partial fulfillment of the requirements for the degree of Master of Science December 2013 THESIS APPROVAL PAGE Student: James Carlton McNabb Title: Stratigraphic Record of Pliocene-Pleistocene Basin Evolution and Deformation Along the San Andreas Fault, Mecca Hills, California This thesis has been accepted and approved in partial fulfillment of the requirements for the Master of Science degree in the Department of Geological Sciences by: Dr. Rebecca J. Dorsey Chairperson Dr. Ray J. Weldon II Member Dr. Josh J. Roering Member and Kimberly Andrews Espy Vice President for Research and Innovation; Dean of the Graduate School Original approval signatures are on file with the University of Oregon Graduate School. Degree awarded December 2013 ii © 2013 James Carlton McNabb iii THESIS ABSTRACT James Carlton McNabb Master of Science Department of Geological Sciences December 2013 Title: Stratigraphic Record of Pliocene-Pleistocene Basin Evolution and Deformation Along the San Andreas Fault, Mecca Hills, California Sedimentary rocks in the Mecca Hills record a 3-4 Myr history of basin evolution and deformation within the southern San Andreas fault (SAF) zone. Detailed geologic mapping, measured sections, lithofacies analysis, and preliminary paleomagnetic data indicate that sedimentation and deformation in the Mecca Hills resulted from evolution of local fault zone complexities superimposed on regional subsidence and uplift. Sediment was derived from sources northeast of the SAF and transported southeast along the fault zone in large rivers, alluvial fans, and a smaller fault-bounded lake.
    [Show full text]
  • APPENDIX I Paleontological Resources Assessment for The
    Coachella Valley Stormwater Channel Improvement Project, Avenue 54 to Thermal Drop Structure Draft Environmental Impact Report / State Clearinghouse No. 2015111067 Appendices APPENDIX I Paleontological Resources Assessment For the Master Drainage Plan and Programmatic Environmental Impact Report for the Coachella Valley Water District for the Region I-Oasis Area and Region II-Mecca/North Shore, Riverside and Imperial Counties, California Heather L. Clifford and Jessica L. DeBusk Prepared by Applied EarthWorks, Inc. 133 N. San Gabriel Blvd., Suite 201 Pasadena, CA 91107-3414 Prepared for Tetra Tech Attn: Aric Torreyson, P.E. Program manager 800 W. 6th Street, Suite 380 Los Angeles, CA 90017 November 2014 Coachella Valley Water District I-1 Paleontological Resource Assessment for the Master Drainage Plan and Programmatic Environmental Impact Report for the Coachella Valley Water District for the Region I-Oasis Area and Region II-Mecca/North Shore, Riverside and Imperial Counties, California Heather L. Clifford and Jessica L. DeBusk Prepared By Applied EarthWorks, Inc. 133 N. San Gabriel Blvd., Suite 201 Pasadena, CA 91107-3414 Prepared For Tetra Tech Attn: Aric Torreyson, P.E. Program Manager 800 W 6th Street, Suite 380 Los Angeles, CA 90017 November 2014 SUMMARY OF FINDINGS At the request of Tetra Tech, on behalf of Albert A. Webb Associates, Applied EarthWorks, Inc. (Æ) performed a paleontological resource assessment in support of the Master Drainage Plan and Programmatic Environmental Impact Report (PEIR) for the Coachella Valley Water District (CVWD) for the Region I-Oasis Area and Region II-Mecca/North Shore (Project), in Riverside and Imperial Counties, California. The CVWD’s Master Drainage Plan will address flooding hazards in the Region I-Oasis Area and the Region II-Mecca/North Shore Area.
    [Show full text]
  • Stratigraphic Record of Pleistocene Faulting and Basin Evolution in the Borrego Badlands, San Jacinto Fault Zone, Southern California
    Stratigraphic record of Pleistocene faulting and basin evolution in the Borrego Badlands, San Jacinto fault zone, Southern California Andrew T. Lutz Rebecca J. Dorsey† Department of Geological Sciences, 1272 University of Oregon, Eugene, Oregon 97403-1272, USA Bernard A. Housen Department of Geology, Western Washington University, Bellingham, Washington 98225-9080, USA Susanne U. Janecke Department of Geology, Utah State University, Logan, Utah 84322-4505, USA ABSTRACT the western Borrego Badlands postdates a useful tool for documenting changes in the Ocotillo deposition, and thus appears to have position and behavior of basin-bounding faults Sedimentary rocks in the Borrego Bad- propagated southeast into the study area at through time, because it records dynamic inter- lands, Southern California, contain a record ca. 0.6 Ma. actions between subsidence and sediment input of Pleistocene crustal deformation during The Fonts Point Sandstone is a thin, sheet- that are commonly controlled by faulting in tec- initiation and evolution of the San Jacinto like alluvial deposit that records the end of tonically active regions (e.g., Paola et al., 1992; fault zone. We used detailed geologic, strati- deposition and onset of transpressive defor- Gawthorpe et al., 1994, 1997; Paola, 2000). Thus graphic, and paleomagnetic analysis to deter- mation in the Borrego Badlands. The base we can use our knowledge of tectonic controls mine the age and geometry of the deposits and of the Fonts Point Sandstone changes from a on stratigraphic evolution to better understand reconstruct the history of fault-controlled conformable contact in a narrow belt south- the late Cenozoic evolution of the San Andreas sedimentation in this area.
    [Show full text]
  • 8 Bibliography
    8 Bibliography 8-2 8 references GEOLOGY (SECTION 2.2.1.2) Belluomini, S. G., and J. H. Van Gilder 2000 Anza-Borrego Desert State Park® Geology. Report on File Colorado Desert District Stout Research Center, Department of Water Resources, Division of Engineering, Project Geology Section 79 p. Bowers, S. 1901 Reconnaissance of the Colorado Desert mining district. California State Mining Bureau. California Division of Mines and Geology 1963 Mines and mineral resources of San Diego County, California. California Division of Mines and Geology County Report 3. 1977 Geology and mineral resources of Imperial County, California. California Division of Mines and Geology County Report 7. Conrad, T. A. 1855 Reoprt on the fossil shells collected by W. P. Blake, geologist to the expedition under the command of Lieutenant R.S. Williams, United States Topographical Engineers, 1852. In W.P. Blake Preliminary Geological Report, U.S. Pacific Railroad Exploration, U.S. 33rd Congress, 1st Session, House Executive Document 129:5-21. Crowell, J. C. 1981 An outline of tectonic history of southeastern California. In The Geotectonic Development of California, edited by W. G. Ernst. Prentice-Hall, New Jersey, Ruby. Volume 1:583-600. Dean, M. A. 1988 Genesis, mineralogy and stratigraphy of the Neogene Fish Creek gypsum, southwestern Salton Trough, California. Master of Science Thesis, San Diego State University. Dibblee, T. W. Jr. 1984 Stratigraphy and Tectonics of the San Felipe Hills, Borrego Badlands, Superstition Hills, and vicinity. In The Imperial Basin, Tectonics, Sedimentation, and Thermal Aspects, edited by C. A. Rigsby. Society of Economic Paleontologists and Mineralogists 40:31-44.
    [Show full text]