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Tectonic Influences on the Spatial and Temporal Evolution of the Walker Lane: an Incipient Transform Fault Along the Evolving Pacific – North American Plate Boundary
Arizona Geological Society Digest 22 2008 Tectonic influences on the spatial and temporal evolution of the Walker Lane: An incipient transform fault along the evolving Pacific – North American plate boundary James E. Faulds and Christopher D. Henry Nevada Bureau of Mines and Geology, University of Nevada, Reno, Nevada, 89557, USA ABSTRACT Since ~30 Ma, western North America has been evolving from an Andean type mar- gin to a dextral transform boundary. Transform growth has been marked by retreat of magmatic arcs, gravitational collapse of orogenic highlands, and periodic inland steps of the San Andreas fault system. In the western Great Basin, a system of dextral faults, known as the Walker Lane (WL) in the north and eastern California shear zone (ECSZ) in the south, currently accommodates ~20% of the Pacific – North America dextral motion. In contrast to the continuous 1100-km-long San Andreas system, discontinuous dextral faults with relatively short lengths (<10-250 km) characterize the WL-ECSZ. Cumulative dextral displacement across the WL-ECSZ generally decreases northward from ≥60 km in southern and east-central California, to ~25 km in northwest Nevada, to negligible in northeast California. GPS geodetic strain rates average ~10 mm/yr across the WL-ECSZ in the western Great Basin but are much less in the eastern WL near Las Vegas (<2 mm/ yr) and along the northwest terminus in northeast California (~2.5 mm/yr). The spatial and temporal evolution of the WL-ECSZ is closely linked to major plate boundary events along the San Andreas fault system. For example, the early Miocene elimination of microplates along the southern California coast, southward steps in the Rivera triple junction at 19-16 Ma and 13 Ma, and an increase in relative plate motions ~12 Ma collectively induced the first major episode of deformation in the WL-ECSZ, which began ~13 Ma along the N60°W-trending Las Vegas Valley shear zone. -
Constraints on Present-Day Basin and Range Deformation from Space Geodesy Timothy H
University of South Florida Scholar Commons School of Geosciences Faculty and Staff School of Geosciences Publications 1995 Constraints on Present-Day Basin and Range Deformation from Space Geodesy Timothy H. Dixon University of Miami, [email protected] Stefano Robaudo University of Miami Jeffrey Lee California Institute of Technology Marith C. Reheis U.S. Geological Survey Follow this and additional works at: https://scholarcommons.usf.edu/geo_facpub Part of the Earth Sciences Commons Scholar Commons Citation Dixon, Timothy H.; Robaudo, Stefano; Lee, Jeffrey; and Reheis, Marith C., "Constraints on Present-Day Basin and Range Deformation from Space Geodesy" (1995). School of Geosciences Faculty and Staff Publications. 495. https://scholarcommons.usf.edu/geo_facpub/495 This Article is brought to you for free and open access by the School of Geosciences at Scholar Commons. It has been accepted for inclusion in School of Geosciences Faculty and Staff ubP lications by an authorized administrator of Scholar Commons. For more information, please contact [email protected]. TECTONICS, VOL. 14, NO. 4, ]'AGES 755-772, AUGUST 1995 Constraints on present-day Basin and Range deformation from space geodesy TimothyH. Dixonand Stefano Robaudo • RosenstielSchool of Marine and AtmosphericSciences, University of Miami Miami, Florida JeffreyLee 2 Division of Geologicaland Planetary Sciences, California Institute of Technology,Pasadena Marith C. Reheis U.S. GeologicalSurvey, Lakewood, Colorado Abstract. We use new spacegeodetic data from very long extension.A slip rate budgetfor major strike-slipfaults in baselineinterferometry and satellite laser ranging combined our studyarea based on a combinationof local geodeticor with other geodetic and geologic data to study late Quaternary geologic data and the regional space contemporarydeformation in the Basinand Range province geodeticdata suggeststhe following rates of right-lateral of the western United States. -
Upper Neogene Stratigraphy and Tectonics of Death Valley — a Review
Earth-Science Reviews 73 (2005) 245–270 www.elsevier.com/locate/earscirev Upper Neogene stratigraphy and tectonics of Death Valley — a review J.R. Knott a,*, A.M. Sarna-Wojcicki b, M.N. Machette c, R.E. Klinger d aDepartment of Geological Sciences, California State University Fullerton, Fullerton, CA 92834, United States bU. S. Geological Survey, MS 975, 345 Middlefield Road, Menlo Park, CA 94025, United States cU. S. Geological Survey, MS 966, Box 25046, Denver, CO 80225-0046, United States dTechnical Service Center, U. S. Bureau of Reclamation, P. O. Box 25007, D-8530, Denver, CO 80225-0007, United States Abstract New tephrochronologic, soil-stratigraphic and radiometric-dating studies over the last 10 years have generated a robust numerical stratigraphy for Upper Neogene sedimentary deposits throughout Death Valley. Critical to this improved stratigraphy are correlated or radiometrically-dated tephra beds and tuffs that range in age from N3.58 Ma to b1.1 ka. These tephra beds and tuffs establish relations among the Upper Pliocene to Middle Pleistocene sedimentary deposits at Furnace Creek basin, Nova basin, Ubehebe–Lake Rogers basin, Copper Canyon, Artists Drive, Kit Fox Hills, and Confidence Hills. New geologic formations have been described in the Confidence Hills and at Mormon Point. This new geochronology also establishes maximum and minimum ages for Quaternary alluvial fans and Lake Manly deposits. Facies associated with the tephra beds show that ~3.3 Ma the Furnace Creek basin was a northwest–southeast-trending lake flanked by alluvial fans. This paleolake extended from the Furnace Creek to Ubehebe. Based on the new stratigraphy, the Death Valley fault system can be divided into four main fault zones: the dextral, Quaternary-age Northern Death Valley fault zone; the dextral, pre-Quaternary Furnace Creek fault zone; the oblique–normal Black Mountains fault zone; and the dextral Southern Death Valley fault zone. -
Mineral Resources and Mineral Resource Potential of the Saline Valley and Lower Saline Wilderness Study Areas Inyo County, California
UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Mineral resources and mineral resource potential of the Saline Valley and Lower Saline Wilderness Study Areas Inyo County, California Chester T. Wrucke, Sherman P. Marsh, Gary L. Raines, R. Scott Werschky, Richard J. Blakely, and Donald B. Hoover U.S. Geological Survey and Edward L. McHugh, Clay ton M. Rumsey, Richard S. Gaps, and J. Douglas Causey U.S. Bureau of Mines U.S. Geological Survey Open-File Report 84-560 Prepared by U.S. Geological Survey and U.S. Bureau of Mines for U.S. Bureau of Land Management This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. 1984 UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Mineral resources and mineral resource potential of the Saline Valley and Lower Saline Wilderness Study Areas Inyo County, California by Chester T. Wrucke, Sherman P. Marsh, Gary L. Raines, R. Scott Werschky, Richard J. Blakely, and Donald B. Hoover U.S. Geological Survey and Edward L. McHugh, Clayton M. Rumsey, Richard S. Gaps, and J. Douglas Causey U.S. Bureau of Mines U.S. Geological Survey Open-File Report 84-560 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. 1984 ILLUSTRATIONS Plate 1. Mineral resource potential map of the Saline Valley and Lower Saline Wilderness Study Areas, Inyo County, California................................ In pocket Figure 1. Map showing location of Saline Valley and Lower Saline Wilderness Study Areas, California.............. 39 2. -
Draft DRECP and EIR/EIS CHAPTER II.4
Draft DRECP and EIR/EIS CHAPTER II.4. ALTERNATIVE 1 II.4 ALTERNATIVE 1 Alternative 1 is one of five action alternatives considered and analyzed in the Desert Renewable Energy Conservation Plan (DRECP or Plan) and Environmental Impact Report/Environmental Impact Statement (EIR/EIS). The description of Alternative 1 is first provided at an interagency level (Section II.4.1), which describes all Plan elements of the alternative. After the interagency description, the individual elements of the alternative are described, including the Bureau of Land Management (BLM) Land Use Plan Amendment (LUPA) elements of the DRECP (Section II.4.2), the Natural Community Conservation Plan (NCCP) elements of the DRECP (Section II.4.3), and the General Conservation Plan (GCP) elements of the DRECP (Section II.4.4). II.4.1 Interagency Description of Alternative 1 The interagency description of Alternative 1 includes the following main sections: Overview of Alternative 1, Conservation Strategy, Monitoring and Adaptive Management Program, Description of the Covered Activities, and Plan Implementation. The description of Alternative 1 for the DRECP and EIR/EIS encompasses the overall conservation strategy and description of Covered Activities on federal and nonfederal lands (i.e., state, county, city, and privately owned lands) within the Plan Area. II.4.1.1 Overview of Alternative 1 The following provides a Plan-wide overview of Alternative 1. Alternative 1 integrates the renewable energy and resource conservation with other existing uses in the Plan Area and includes BLM LUPA elements, NCCP elements, and GCP elements. Under Alternative 1 for the DRECP, an interagency conservation strategy for the Plan Area would be established that includes a streamlined process for the permitting of renewable energy and transmission development on both federal and nonfederal lands and a BLM LUPA providing Conservation and Management Actions (CMAs) for resources throughout the Plan Area on BLM-administered lands. -
2021 Magazine
July 2021 Welcome to the July 2021 edition of BADWATER® Magazine! We are AdventureCORPS®, producers of ultra-endurance sports events and adventure travel across the globe, and the force behind the BADWATER® brand. This magazine celebrates the entire world-wide Badwater® / AdventureCORPS® series of races, all the Badwater Services, Gear, Drinks, and Clothing, and what we like to call the Badwater Family and the Badwater Way of Life. Adventure is our way of life, so – after the sad and disastrous 2020 when we were not able to host any of our life-changing events – we are pleased to be fully back in action in 2021! Well, make that almost fully: Due to pandemic travel bans still in place, international participation in our USA-based events is not where we want it and that’s really unfortunate. Badwater 135 is the de facto Olympics of Ultrarunning and the 135-Mile World Championship, so we always want as many nationalities represented as possible. (The inside front cover of this magazine celebrates all sixty-one nationalities which have been represented on the Badwater 135 start line over the years.) Our new six-day stage race across Armenia – Artsakh Ultra – will have to wait yet another year to debut in 2022, two years later than planned. But it will be incredible, the ultimate stage race with six days of world-class trail running through several millennia of incredible culture and history, and across the most dramatic and awe-inspiring landscapes. This year, we are super excited to have brought two virtual races to life, first for the 31 days of January, and then for 16 days in April. -
Syn-Eruptive, Soft-Sediment Deformation of Deposits
Solid Earth, 6, 553–572, 2015 www.solid-earth.net/6/553/2015/ doi:10.5194/se-6-553-2015 © Author(s) 2015. CC Attribution 3.0 License. Syn-eruptive, soft-sediment deformation of deposits from dilute pyroclastic density current: triggers from granular shear, dynamic pore pressure, ballistic impacts and shock waves G. A. Douillet1, B. Taisne2, È. Tsang-Hin-Sun3, S. K. Müller4, U. Kueppers1, and D. B. Dingwell1 1Earth and Environmental Sciences, Ludwig-Maximilians-Universität, Munich, Germany 2Earth Observatory of Singapore, Nanyang Technological University, Singapore 3Université of Brest and CNRS, Laboratoire Domaines Océaniques, Plouzaré, France 4Meteorological Institute, Ludwig-Maximilians-Universität, Munich, Germany Correspondence to: G. A. Douillet ([email protected]) Received: 17 November 2014 – Published in Solid Earth Discuss.: 16 December 2014 Revised: 16 April 2015 – Accepted: 20 April 2015 – Published: 21 May 2015 Abstract. Soft-sediment deformation structures can provide to be the signature of shear instabilities occurring at the valuable information about the conditions of parent flows, boundary of two granular media. They may represent the sediment state and the surrounding environment. Here, the frozen record of granular, pseudo Kelvin–Helmholtz examples of soft-sediment deformation in deposits of dilute instabilities. Their recognition can be a diagnostic for pyroclastic density currents are documented and possible flows with a granular basal boundary layer. Vertical syn-eruptive triggers suggested. Outcrops from six different inter-penetration and those folds-and-faults features related volcanoes have been compiled in order to provide a to slumps are driven by their excess weight and occur | downloaded: 11.10.2021 broad perspective on the variety of structures: Soufrière after deposition but penecontemporaneous to the eruption. -
Hydrologic Basin Death Valley California
Hydrologic Basin Death Valley California GEOLOGICAL SURVEY PROFESSIONAL PAPER 494-B Hydrologic Basin Death Valley California By CHARLES B. HUNT, T. W. ROBINSON, WALTER A. BOWLES, and A. L. WASHBURN GENERAL GEOLOGY OF DEATH VALLEY, CALIFORNIA GEOLOGICAL SURVEY PROFESSIONAL PAPER 494-B A! description of the hydrology, geochemistry, and patternedground of the saltpan UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1966 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY William T. Pecora, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Page Page Abstract BI Hydrology-Continued Hydrology, by Charles B. Hunt and T. W. Robinson_ - 3 Descriptions and discharges of springs and of Introduction- 3 marshes-Continued Fieldwork- 3 Discharge of springs in the Furnace Creek fault Climate- 5 zone B35 Rainfall 5 Evapotranspiration discharge from the valley floor Evaporation 7 above the saltpan 37 Temperature- 8 Divisions of the valley according to sources of Humidity- 10 ground water 37 Wind- 11 Possible sources of water at Cottonball Marsh- 37 Rock types in the Death Valley hydrologic basin --- 11 Possible source of water at springs along Fur- Hard-rock formations 12 nace Creek fault zone 38 Unconsolidated Quaternary deposits 13 Geochemistry of the saltpan by Charles B. Hunt 40 Gravel deposits 13 General features 40 Fine-grained alluvial and playa deposits - 15 Fieldwork and acknowledgments 41 Salt deposits and saliferous playa deposits- 15 Geologic -
Death Valley National Park
COMPLIMENTARY $3.95 2019/2020 YOUR COMPLETE GUIDE TO THE PARKS DEATH VALLEY NATIONAL PARK ACTIVITIES • SIGHTSEEING • DINING • LODGING TRAILS • HISTORY • MAPS • MORE OFFICIAL PARTNERS T:5.375” S:4.75” PLAN YOUR VISIT WELCOME S:7.375” In T:8.375” 1994, Death Valley National SO TASTY EVERYONE WILL WANT A BITE. Monument was expanded by 1.3 million FUN FACTS acres and redesignated a national park by the California Desert Protection Act. Established: Death Valley became a The largest national park below Alaska, national monument in 1933 and is famed this designation helped focus protection for being the hottest, lowest and driest on one the most iconic landscapes in the location in the country. The parched world. In 2018 nearly 1.7 million people landscape rises into snow-capped mountains and is home to the Timbisha visited the park, a new visitation record. Shoshone people. Death Valley is renowned for its colorful Land Area: The park’s 3.4 million acres and complex geology. Its extremes of stretch across two states, California and elevation support a great diversity of life Nevada. and provide a natural geologic museum. Highest Elevation: The top of This region is the ancestral homeland Telescope Peak is 11,049 feet high. The of the Timbisha Shoshone Tribe. The lowest is -282 feet at Badwater Basin. Timbisha established a life in concert Plants and Animals: Death Valley with nature. is home to 51 mammal species, 307 Ninety-three percent of the park is bird species, 36 reptile species, two designated wilderness, providing unique amphibian species and five fish species. -
Open-File/Color For
Questions about Lake Manly’s age, extent, and source Michael N. Machette, Ralph E. Klinger, and Jeffrey R. Knott ABSTRACT extent to form more than a shallow n this paper, we grapple with the timing of Lake Manly, an inconstant lake. A search for traces of any ancient lake that inundated Death Valley in the Pleistocene upper lines [shorelines] around the slopes Iepoch. The pluvial lake(s) of Death Valley are known col- leading into Death Valley has failed to lectively as Lake Manly (Hooke, 1999), just as the term Lake reveal evidence that any considerable lake Bonneville is used for the recurring deep-water Pleistocene lake has ever existed there.” (Gale, 1914, p. in northern Utah. As with other closed basins in the western 401, as cited in Hunt and Mabey, 1966, U.S., Death Valley may have been occupied by a shallow to p. A69.) deep lake during marine oxygen-isotope stages II (Tioga glacia- So, almost 20 years after Russell’s inference of tion), IV (Tenaya glaciation), and/or VI (Tahoe glaciation), as a lake in Death Valley, the pot was just start- well as other times earlier in the Quaternary. Geomorphic ing to simmer. C arguments and uranium-series disequilibrium dating of lacus- trine tufas suggest that most prominent high-level features of RECOGNITION AND NAMING OF Lake Manly, such as shorelines, strandlines, spits, bars, and tufa LAKE MANLY H deposits, are related to marine oxygen-isotope stage VI (OIS6, In 1924, Levi Noble—who would go on to 128-180 ka), whereas other geomorphic arguments and limited have a long and distinguished career in Death radiocarbon and luminescence age determinations suggest a Valley—discovered the first evidence for a younger lake phase (OIS 2 or 4). -
Geophysical Investigations of Structures Within Southern Fish Lake Valley, Western Great Basin
GEOPHYSICAL INVESTIGATIONS OF SOUTHERN FISH LAKE VALLEY, WESTERN GREAT BASIN, CALIFORNIA by Kyle A. McBride APPROVED BY SUPERVISORY COMMITTEE: ___________________________________________ Dr. John F. Ferguson, Chair ___________________________________________ Dr. Tom H. Brikowski ___________________________________________ Dr. John S. Oldow Copyright 2016 Kyle A. McBride All Rights Reserved I dedicate this thesis to my grandfather, Bill McMullin, with whom I would have enjoyed to have the time to discuss geology and the earth sciences. GEOPHYSICAL INVESTIGATIONS OF SOUTHERN FISH LAKE VALLEY, WESTERN GREAT BASIN, CALIFORNIA by KYLE A. MCBRIDE, BS, BBA THESIS Presented to the Faculty of The University of Texas at Dallas in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE IN GEOSCIENCES THE UNIVERSITY OF TEXAS AT DALLAS December 2016 ACKNOWLEDGMENTS I would like to thank Dr. John Ferguson for his guidance and support throughout the duration of this project; our numerous conversations and his provided insights being crucial for the development of this thesis. I would also like to thank Dr. Ferguson for the opportunities extended to me while at UT Dallas, such as SAGE and the Denbury gravity surveys. I also want to thank Dr. John Geissman for his encouragement and mentoring during my time at UT Dallas. I want to thank my committee members for taking the time to review and comment on this document, and of course, I want to thank my wife, Denise, and my family, for their patience and support. November 2016 v GEOPHYSICAL INVESTIGATIONS OF SOUTHERN FISH LAKE VALLEY, WESTERN GREAT BASIN, CALIFORNIA Publication No. ___________________ Kyle A. McBride, MS The University of Texas at Dallas, 2016 ABSTRACT Supervising Professor: John F. -
Distribution of Amargosa River Pupfish (Cyprinodon Nevadensis Amargosae) in Death Valley National Park, CA
California Fish and Game 103(3): 91-95; 2017 Distribution of Amargosa River pupfish (Cyprinodon nevadensis amargosae) in Death Valley National Park, CA KRISTEN G. HUMPHREY, JAMIE B. LEAVITT, WESLEY J. GOLDSMITH, BRIAN R. KESNER, AND PAUL C. MARSH* Native Fish Lab at Marsh & Associates, LLC, 5016 South Ash Avenue, Suite 108, Tempe, AZ 85282, USA (KGH, JBL, WJG, BRK, PCM). *correspondent: [email protected] Key words: Amargosa River pupfish, Death Valley National Park, distribution, endangered species, monitoring, intermittent streams, range ________________________________________________________________________ Amargosa River pupfish (Cyprinodon nevadensis amargosae), is one of six rec- ognized subspecies of Amargosa pupfish (Miller 1948) and survives in waters embedded in a uniquely harsh environment, the arid and hot Mojave Desert (Jaeger 1957). All are endemic to the Amargosa River basin of southern California and Nevada (Moyle 2002). Differing from other spring-dwelling subspecies of Amargosa pupfish (Cyprinodon ne- vadensis), Amargosa River pupfish is riverine and the most widely distributed, the extent of which has been underrepresented prior to this study (Moyle et al. 2015). Originating on Pahute Mesa, Nye County, Nevada, the Amargosa River flows intermittently, often under- ground, south past the towns of Beatty, Shoshone, and Tecopa and through the Amargosa River Canyon before turning north into Death Valley National Park and terminating at Badwater Basin (Figure 1). Amargosa River pupfish is data deficient with a distribution range that is largely unknown. The species has been documented in Tecopa Bore near Tecopa, Inyo County, CA (Naiman 1976) and in the Amargosa River Canyon, Inyo and San Bernardino Counties, CA (Williams-Deacon et al.