A Transverse Fault in an Extended Terrane, the Currant Summit Fault, Nevada
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UNLV Retrospective Theses & Dissertations 1-1-2000 A transverse fault in an extended terrane, the Currant Summit Fault, Nevada Nathan David Williams University of Nevada, Las Vegas Follow this and additional works at: https://digitalscholarship.unlv.edu/rtds Repository Citation Williams, Nathan David, "A transverse fault in an extended terrane, the Currant Summit Fault, Nevada" (2000). UNLV Retrospective Theses & Dissertations. 1163. http://dx.doi.org/10.25669/6uj3-f36z This Thesis is protected by copyright and/or related rights. It has been brought to you by Digital Scholarship@UNLV with permission from the rights-holder(s). You are free to use this Thesis in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. 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The manuscript was microfilmed as received. 67 This reproduction is the best copy available UMI Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. A TRANSVERSE FAULT IN AN EXTENDED TERRANE, THE CURRANT SUMMIT FAULT, NEVADA by Nathan D Williams Bachelor of Science University of Kansas 1996 A thesis submitted in partial fulfillment of the requirements for the Master of Science Degree Department of Geoscience College of Sciences Graduate College University of Nevada, Las Vegas May 2000 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. UMI Number 1399936 UMI UMI Microform 1399936 Copyright 2000 by Bell & Howell Information and Learning Company. All rights reserved. This microform edition is protected against unauthorized copying under Title 17, United States Code. Bell & Howell Information and Learning Company 300 North Zeeb Road P.O. Box 1346 Ann Arbor. Ml 48106-1346 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Thesis Approval u The Graduate College UniversitN’ of Nevada, Las Vegas A p r il 28 ,20 00 The Thesis prepared by Nathan D. Williams Entitled A Transverse Fault in an Extended Terrane. the Currant Summit Fault. Nevada is approved in partial fulfillment of the requirements for the degree of _______________________ Master of Science _____________________ Examination Commiitec Chair Dean o f the Graduate College Exanuiiatiorf^ommittce Member Examination Committee Member g~/^eg- ____________ Graduate College Facultu Representative u Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. ABSTRACT A Transverse Fault in an Extended Terrane: the Currant Summit Fault, Nevada by Nathan D. Williams Dr W.J. Taylor, Examination Committee Chair Professor of Geoscience University of Nevada, Las Vegas Transverse faults in extensional terranes strike parallel to subparallel to the extension direction, are laterally continuous, and terminate abruptly. Problems of transverse faults are addressed by analysis of the Currant Summit fault, an east-west striking fault in east-central Nevada. Mapping of rock units and structures allowed determination of the net slip along the Currant Summit fault. The slip was calculated from an offset anticlinal hinge. Motion is normal-left oblique with horizontal offset of 3300 m, throw of 1950 m and heave of 70 m. Geometric calculations and field data constrain the fault dip to -87° N. The name oblique-slip barrier transfer fault is proposed to describe this type of fault. The oblique-slip barrier transfer fault: segments extensional provinces; may be part of a larger transfer or accommodation zone; prohibits normal fault propagation; and allows normal faults to transfer slip onto the transverse fault. Ill Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. TABLE OF CONTENTS ABSTRACT............................................................................................................................iii LIST OF FIGURES................................................................................................................vi ACKNOWLEDGEMENTS................................................................................................. vii CHAPTER 1 INTRODUCTION........................................................................................... I CHAPTER 2 STRATIGRAPHY...........................................................................................4 Paleozoic Stratigraphy .........................................................................................................4 Cenozoic Stratigraphy .......................................................................................................... 6 CHAPTER 3 TECTONIC BACKGROUND.......................................................................8 Contraction ............................................................................................................................8 Extension ............................................................................................................................... 9 CHAPTER4 TRANSVERSE FAULTS............................................................................II CHAPTERS METHODS.................................................................................................... 16 CHAPTER 6 STRUCTURAL DESCRIPTIONS..............................................................18 White Pine Range anticline ................................................................................................18 Sub-Tertiary unconformity ............................................................................................... 20 Cenozoic extensional faults ..............................................................................................21 Currant Summit fault ......................................................................................................... 23 CHAPTER 7 STRUCTURAL AND TECTONIC INTERPRETATIONS ..................... 26 The White Pine Range anticline........................................................................................26 Cenozoic extension .............................................................................................................30 Kinematic analysis of the Currant Summit fault ............................................................. 35 Relationship of Currant Summit fault to Regional Structures .......................................38 CHAPTER 8 SUMMARY AND CONCLUSION ............................................................. 45 APPENDICES....................................................................................................................... 65 Appendix 1. Stratigraphie descriptions ........................................................................... 65 Appendix 2. Using ArcView to create maps ...................................................................88 IV Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. REFERENCES.......................................................................................................................93 VITA......................................................................................................................................103 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. LIST OF FIGURES Figure 1 Map of Lineaments in the Central Basin and Range