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Active Tectonics of the Northeastern Mojave Desert, California. David F

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Active Tectonics of the Northeastern Mojave Desert, California. David F Louisiana State University LSU Digital Commons LSU Historical Dissertations and Theses Graduate School 1996 Active Tectonics of the Northeastern Mojave Desert, California. David F. Macconnell Louisiana State University and Agricultural & Mechanical College Follow this and additional works at: https://digitalcommons.lsu.edu/gradschool_disstheses Recommended Citation Macconnell, David F., "Active Tectonics of the Northeastern Mojave Desert, California." (1996). LSU Historical Dissertations and Theses. 6156. https://digitalcommons.lsu.edu/gradschool_disstheses/6156 This Dissertation is brought to you for free and open access by the Graduate School at LSU Digital Commons. It has been accepted for inclusion in LSU Historical Dissertations and Theses by an authorized administrator of LSU Digital Commons. For more information, please contact [email protected]. INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book. Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6” x 9” black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. UMI A Bell & Howell Information Company 300 North Zeeb Road, Ann Arbor MI 48106-1346 USA 313/761-4700 800/521-0600 ACTIVE TECTONICS OF THE NORTHEASTERN MOJAVE DESERT, CALIFORNIA A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Department of Geology and Geophysics by David F. MacConnell B.S., San Diego State University, 1988 May 1996 UMI Number: 9628310 UMI Microform 9628310 Copyright 1996, by UMI Company. All rights reserved. This microform edition is protected against unauthorized copying under Title 17, United States Code. UMI 300 North Zeeb Road Ann Arbor, MI 48103 A cknowledgments No project as large and encompassing as that of a dissertation is performed by an individual acting alone. This project has cost me many years in its achievement; some, now behind me, and some, I’m quite sure, have been paid for off the tail end of my life. However, the cost surely would have been much dearer had I not had the help of my friends, family and associates. My advisor, Roy Dokka, has been a most valued and demanding critic, a loyal working associate, and a close friend. Thank you, Roy, for providing an environment rich in technologies, ideas and quality student associates-an academic climate which has stimulated my growth as a geologist. I thank Chad McCabe for the use of the LSU paleomagnetism laboratory and for his considerable time and effort spent on this project, both in the field and in the lab. Ajoy Baksi conducted geochronological studies on rocks from my field area. This manuscript has benefited greatly from the reviews and suggestions of Darrell Henry and Oscar Huh. I have always enjoyed geological field research especially when the days are bright and the air is cool; however, when the weather gets rough, as it often does in the Mojave Desert, one truly develops an understanding of how misery is far less painful when shared. I especially thank Minji Chu, Rob Lewis, Molly Malone, Chad McCabe, Mike McCurry, Tim Ross, and Hodge Walker for the arduous work performed, the camaraderie shared and the valuable discussions held in "the field." My family has been a great source of inspiration to me; for my every achievement they have given fanfare far out of proportion, and for every disappointment they were ready with thoughtful words. Regardless of the distance separating us, their love and support have helped to keep my spirits high and motivation strong. I thank the Department of Geology and Geophysics for providing financial as well as logistical support. I am grateful for the monetary contributions I have received from Amoco Oil Co., Arco Oil and Gas, Shell Oil Co., Exxon Exploration Co., and the Houston Geological Society. This work was also supported by the Geodynamics Branch of NASA under contract awarded to M.Miller (P.I.) and R. K.Dokka (Co-I.), a NSF grant (EAR9219191), and a contract with the U.S. Army (#959353). Much appreciated help with the logistics of field operations and living accommodations were provided by W. McNutt and L. Sturgis (Bendix Corp.) and R. Quinones and Lt. Col. Schnable (U.S. Army, NTC). I also thank Exxon Exploration Company for providing me with the greatest incentive to knuckle down and finish this dissertation-a job. Finally I thank my beloved Elizabeth Keller for coloring life rich and vibrant with love and adventure, for making every hour away from work a chance to remember how sweet life can be...nothing has had more of an impact on my sense of purpose. T a b l e o f C o n t e n t s A C K N O W L E D G M E N T S ........................................................................................... ii LIST OF TABLES .......................................................................................................... vii LIST OF FIGURES ....................................................................................................... viii LIST OF PLATES .......................................................................................................... x ABSTRACT ........................................................................................................................ xi CHAPTER 1: INTRODUCTION ........................................................................... 1 OVERVIEW ..................................................................................................................... 1 P u rp o s e........................................................................................................................ 1 Significance ............................................................................................................... 4 O b je c tiv e s .................................................................................................................. 6 APPROACH AND METHODS .............................................................................. 6 Field Methods ......................................................................................................... 7 Remote Sensing Studies .................................................................................... 8 Landsat Thematic Mapper ........................................................................... 9 SPOT-Landsat TM Merge .......................................................................... 9 High Altitude Color-infrared Aerial Photographs................................... 10 Interpretation..................................................................................................... 10 Seismicity Data ..................................................................................................... 11 Paleomagnetism Data.......................................................................................... 11 Geographic Information System...................................................................... 12 CHAPTER 2: GEOLOGY OF THE NORTHEASTERN MOJAVE DESERT ....................................................................................................... 13 INTRODUCTION .......................................................................................................... 13 OVERVIEW OF GEOLOGICAL HISTORY ..................................................... 13 Pre-Tertiary Geology.......................................................................................... 13 Late Cretaceous to Early Cenozoic Erosional Epoch................................... 14 Early Miocene Extensional Tectonics............................................................ 15 Early Miocene Regional Dextral Shear.......................................................... 15 Early Miocene Volcanism in the Northeastern Mojave Desert..................... 16 Late Cenozoic Tectonics.................................................................................... 17 STRATIGRAPHY OF THE GOLDSTONE LAKE REGION .......................... 20 Introduction............................................................................................................... 20 Basement Rocks of the Goldstone Lake Region........................................... 21 Early Miocene Volcanic and Volcaniclastic Rocks of the Goldstone Lake Region.....................................................................................
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