The Archaeology and Paleoclimate of the Mud Lake Basin, Nye County, Nevada

Total Page:16

File Type:pdf, Size:1020Kb

The Archaeology and Paleoclimate of the Mud Lake Basin, Nye County, Nevada University of Nevada, Reno Changing Landscapes During the Terminal Pleistocene/Early Holocene: The Archaeology and Paleoclimate of the Mud Lake Basin, Nye County, Nevada A thesis submitted in partial fulfillment of the requirements for the degree of Masters of Arts in Anthropology By Lindsay A. Fenner Dr. Geoffrey M. Smith/Thesis Advisor May, 2011 © by Lindsay A. Fenner 2011 All Rights Reserved THE GRADUATE SCHOOL We recommend that the thesis prepared under our supervision by LINDSAY A. FENNER entitled Changing Landscapes During The Terminal Pleistocene/Early Holocene: The Archaeology And Paleoclimate Of The Mud Lake Basin, Nye County, Nevada be accepted in partial fulfillment of the requirements for the degree of MASTER OF ARTS Geoffrey M. Smith, Ph.D., Advisor Gary Haynes, Ph.D., Committee Member Kenneth D. Adams, Ph.D., Graduate School Representative Marsha H. Read, Ph. D., Associate Dean, Graduate School May, 2011 i ABSTRACT Archaeological investigation along Pleistocene lakeshores is a longstanding and common approach to prehistoric research in the Great Basin. Continuing in this tradition, this thesis considers the archaeological remains present from pluvial Mud Lake, Nye County, Nevada coupled with an examination of paleoclimatic conditions to assess land-use patters during the terminal Pleistocene/early Holocene. Temporally diagnostic lithic assemblages from 44 localities in the Mud Lake basin provide the framework for which environmental proxy records are considered. Overwhelmingly occupied by Prearchaic groups, comprising 76.6% of all diagnostic artifacts present, Mud Lake was intensively utilized right up to its desiccation after the Younger Dryas, estimated at 9,000 radiocarbon years before present. Intermittently occupied through the remainder of the Holocene, different land-use strategies were employed as a result of shifting subsistence resources reacting to an ever changing environment. The results of this thesis complement the existing knowledge base on Prearchaic groups in the Great Basin, with particular contributions to the lesser studied small pluvial basins. ii ACKNOWLEDGEMENTS There are many people and groups that I would like to thank for helping me reach this place, both academically and personally. I would first like to thank the Sundance Archaeological Research Fund for making my research possible, employing me, and for being the reason I came to UNR in the first place. I also must thank the Am-Arcs of Northern Nevada and UNR’s Graduate Student Association for their support in getting me to the many conferences I presented at during my time here. I must thank my committee – Drs. Geoffrey M. Smith, Gary Haynes, and Kenneth D. Adams – for their support, criticism, and patience. Thanks to Ken, for your invaluable consultation on all things pluvial and helping me to keep my cool. Thanks to Gary, for being here with me through this whole ordeal, sticking through to the end and for providing some very necessary laughter. Lastly, thanks to Geoff, for sweeping in here and giving me the swift kick I needed to get seriously motivated and for devoting countless hours theorizing, revising, and helping me see the silver lining in it all. I would also like to thank the department and the many people in it. A few of you have become so much more than colleagues to me, and I am thankful for all the time we have been able to spend together. Nothing can replace our field adventures or the Happy Fun Time Anthropology Club and I will always remember them fondly. I am greatly indebted to Gary D. Noyes. Gary’s desire to let the world know how amazing Mud Lake is allowed me to be a part of its history forever. Extremely free with his time and knowledge, Gary and the whole Noyes family were nothing but kind to myself and my field-mates. Thank you Gary, for letting me know Mud Lake. iii To all the other amazing folks who helped me along the way. To Sue Rigby of the Tonopah BLM Field Office, for her cooperation and support with the Mud Lake report, and to Craig Skinner of Northwestern Research Obsidian Study Laboratory, for his valued help in sourcing the Mud Lake artifacts provided by Gary. Lastly, I thank my family – those immediate, extended, and metaphoric. You all have provided immeasurable support (whether I was able to ask for it or not) and have always been understanding and excited about the choices I have made, even when it put great physical distances between us. To this end, I must single out my mother, who has been my greatest champion, supporter, and friend. Without her and her love I would not be the person I am today. I am grateful for each and every one of you. Thank you. iv TABLE OF CONTENTS ABSTRACT ......................................................................................................................... i ACKNOWLEDGEMENTS ................................................................................................ ii LIST OF TABLES ............................................................................................................. vi LIST OF FIGURES .......................................................................................................... vii CHAPTER 1: INTRODUCTION ........................................................................................1 Pluvial Mud Lake .....................................................................................................2 Background ..............................................................................................................7 Environment and Climate ............................................................................9 Archaeology ...............................................................................................15 Pluvial Lakes Research ..........................................................................................24 Hydrologic Chronology of the Quaternary Great Basin ............................25 Research Goals.......................................................................................................28 CHAPTER 2: METHODS .................................................................................................29 Previous Fieldwork at Mud Lake ...........................................................................29 Archaeological Fieldwork ..........................................................................29 Geological Fieldwork.................................................................................32 Recent Field Procedures ........................................................................................34 Laboratory Analysis ...............................................................................................37 Projectile Points .........................................................................................37 Environmental Analysis .........................................................................................45 Summary ................................................................................................................48 CHAPTER 3: MATERIALS .............................................................................................50 Geological Context of Mud Lake ..........................................................................50 Mud Lake Archaeological Sites .............................................................................53 Previous Research ......................................................................................53 Recent Research .........................................................................................62 Environmental Proxy Records ...............................................................................78 v Global Climate ...........................................................................................79 Regional Climate .......................................................................................79 Local Climate .............................................................................................81 Summary ................................................................................................................82 CHAPTER 4: RESULTS ...................................................................................................84 The Archaeological Record ...................................................................................84 Mud Lake Site Ages...................................................................................86 Mud Lake Site Locations ...........................................................................89 The Environmental Record ....................................................................................90 Global Evidence .........................................................................................92 Regional Evidence .....................................................................................93 Pluvial Evidence ........................................................................................95 Summary ................................................................................................................98 CHAPTER 5: DISCUSSION .............................................................................................99 Landscape Use in the Mud Lake Basin..................................................................99 Comparing Prearchaic and Archaic Assemblages ...................................100 Comparing Mud Lake to Other Great Basin Localities ...........................104
Recommended publications
  • UNIVERSITY of CALIFORNIA Los Angeles Southern California
    UNIVERSITY OF CALIFORNIA Los Angeles Southern California Climate and Vegetation Over the Past 125,000 Years from Lake Sequences in the San Bernardino Mountains A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Geography by Katherine Colby Glover 2016 © Copyright by Katherine Colby Glover 2016 ABSTRACT OF THE DISSERTATION Southern California Climate and Vegetation Over the Past 125,000 Years from Lake Sequences in the San Bernardino Mountains by Katherine Colby Glover Doctor of Philosophy in Geography University of California, Los Angeles, 2016 Professor Glen Michael MacDonald, Chair Long sediment records from offshore and terrestrial basins in California show a history of vegetation and climatic change since the last interglacial (130,000 years BP). Vegetation sensitive to temperature and hydroclimatic change tended to be basin-specific, though the expansion of shrubs and herbs universally signalled arid conditions, and landscpe conversion to steppe. Multi-proxy analyses were conducted on two cores from the Big Bear Valley in the San Bernardino Mountains to reconstruct a 125,000-year history for alpine southern California, at the transition between mediterranean alpine forest and Mojave desert. Age control was based upon radiocarbon and luminescence dating. Loss-on-ignition, magnetic susceptibility, grain size, x-ray fluorescence, pollen, biogenic silica, and charcoal analyses showed that the paleoclimate of the San Bernardino Mountains was highly subject to globally pervasive forcing mechanisms that register in northern hemispheric oceans. Primary productivity in Baldwin Lake during most of its ii history showed a strong correlation to historic fluctuations in local summer solar radiation values.
    [Show full text]
  • Mineral Reactions in the Sedimentary Deposits of the Lake Magadi Region, Kenya
    Mineral reactions in the sedimentary deposits of the Lake Magadi region, Kenya RONALD C. SURD AM Department of Geology, University of Wyoming, Laramie, Wyoming 82071 HANS P. EUGSTER Department of Earth and Planetary Science, Johns Hopkins University, Baltimore, Maryland 21218 ABSTRACT hand, the initial alkalic zeolite that will form in a specific alkaline lake environment cannot yet be predicted with confidence. Among The authigenic minerals, principally zeolites, in the Pleistocene to the many parameters controlling zeolite distribution, the compo- Holocene consolidated and unconsolidated sediments of the sitions of the volcanic glasses and of the alkaline solutions are cer- Magadi basin in the Eastern Rift Valley of Kenya have been inves- tainly of primary importance. tigated. Samples were available from outcrops as well as drill cores. Most zeolite studies are concerned with fossil alkaline lakes. The following reactions can be documented: (1) trachytic glass + While it is generally easy to establish the composition of the vol- H20 —» erionite, (2) trachytic glass + Na-rich brine —* Na-Al-Si gel, canic glass, the brines responsible for the authigenic reactions have + + (3) erionite + Na analcime + K + Si02 + H20, (4) Na-Al-Si long since disappeared. To overcome this handicap, it is desirable gelanalcime + H20, (5) calcite + F-rich brine—> fluorite + C03 , to investigate an alkaline lake environment for which glass as well (6) calcite + Na-rich brine —» gaylussite, and (7) magadiite —• as brine compositions can be determined — in other words, a + quartz + Na + H20. Erionite is the most common zeolite present, modern alkaline lake environment. Such an environment is Lake but minor amounts of chabazite, clinoptilolite, mordenite, and Magadi of Kenya.
    [Show full text]
  • Fossil Birds from Manix Lake California
    Fossil Birds From Manix Lake California By HILDEGARDE HOWARD A SHORTER CONTRIBUTION TO GENERAL GEOLOGY GEOLOGICAL SURVEY PROFESSIONAL PAPER 264-J Descriptions of late Pleistocene bira remains, including a new species offlamingo UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1955 UNITED STATES DEPARTMENT OF THE INTERIOR Douglas McKay, Secretary GEOLOGICAL SURVEY W. E. Wrather, Director For sale by the Superintendent of Documents, U. S. Government Printing Office Washington 25, D. C. - Price 40 cents (paper cover) CONTENTS Page Page Abstract--__-_-----___-__-__-_--___________________ 199 Description of specimens—Continued Introduction _______________________________________ 199 Branta canadensis (Linnaeus)_--____--_____-_-___- 203 Description of specimens_____________________________ 201 Nyroca valisineria (Wilson) ?____________________- 203 Aechmophorus occidentalis (Lawrence)_____________ 201 Erismatura jamaicensis (Gmelin)__________________ 204 Pelecanus erythrorhynchos Gmelin_________________ 202 Aquila chrysaetos (Linnaeus)_____________________ 204 Phalacrocorax auritus (Lesson) ?_________________ 202 (?rws?_______________-_-______-____-_--__- 204 Ciconia maltha Miller_____.______________________ 202 Family Phalaropodidae__________________________ 204 Phoenicopterus copei Shufeldt?_.__________________ 202 Summary and conclusions__________________________ 204 Phoenicopterus minutus Howard, new species_ ______ 202 Literature cited___________________________________ 205 ILLUSTRATIONS PLATE 50. Phoenicopterus minutus Howard, new
    [Show full text]
  • Rancholabrean Vertebrates from the Las Vegas Formation, Nevada
    Quaternary International xxx (2017) 1e17 Contents lists available at ScienceDirect Quaternary International journal homepage: www.elsevier.com/locate/quaint The Tule Springs local fauna: Rancholabrean vertebrates from the Las Vegas Formation, Nevada * Eric Scott a, , Kathleen B. Springer b, James C. Sagebiel c a Dr. John D. Cooper Archaeological and Paleontological Center, California State University, Fullerton, CA 92834, USA b U.S. Geological Survey, Denver Federal Center, Box 25046, MS-980, Denver CO 80225, USA c Vertebrate Paleontology Laboratory, University of Texas at Austin R7600, 10100 Burnet Road, Building 6, Austin, TX 78758, USA article info abstract Article history: A middle to late Pleistocene sedimentary sequence in the upper Las Vegas Wash, north of Las Vegas, Received 8 March 2017 Nevada, has yielded the largest open-site Rancholabrean vertebrate fossil assemblage in the southern Received in revised form Great Basin and Mojave Deserts. Recent paleontologic field studies have led to the discovery of hundreds 19 May 2017 of fossil localities and specimens, greatly extending the geographic and temporal footprint of original Accepted 2 June 2017 investigations in the early 1960s. The significance of the deposits and their entombed fossils led to the Available online xxx preservation of 22,650 acres of the upper Las Vegas Wash as Tule Springs Fossil Beds National Monu- ment. These discoveries also warrant designation of the assemblage as a local fauna, named for the site of the original paleontologic studies at Tule Springs. The large mammal component of the Tule Springs local fauna is dominated by remains of Mammuthus columbi as well as Camelops hesternus, along with less common remains of Equus (including E.
    [Show full text]
  • The Pueblo in the Mojave Sink: an Archaeological Myth
    California State University, San Bernardino CSUSB ScholarWorks Theses Digitization Project John M. Pfau Library 2002 The pueblo in the Mojave Sink: An archaeological myth Barbara Ann Loren-Webb Follow this and additional works at: https://scholarworks.lib.csusb.edu/etd-project Part of the Archaeological Anthropology Commons Recommended Citation Loren-Webb, Barbara Ann, "The pueblo in the Mojave Sink: An archaeological myth" (2002). Theses Digitization Project. 2107. https://scholarworks.lib.csusb.edu/etd-project/2107 This Thesis is brought to you for free and open access by the John M. Pfau Library at CSUSB ScholarWorks. It has been accepted for inclusion in Theses Digitization Project by an authorized administrator of CSUSB ScholarWorks. For more information, please contact [email protected]. THE PUEBLO IN THE MOJAVE SINK: AN ARCHAEOLOGICAL MYTH A Thesis Presented to the Faculty of California State University, San Bernardino In Partial Fulfillment of the Requirements for the Degree Masters of Arts in Interdisciplinary Studies by Barbara Ann Loren-Webb March 2003 THE PUEBLO IN THE MOJAVE SINK: AN ARCHAEOLOGICAL MYTH A Thesis Presented to the Faculty of California State University, San Bernardino by Barbara Ann Loren-Webb March 2003 Approved by: Russell Barber, Chair, Anthropology Date Pete Robertshesw, Anthropology ABSTRACT In 1929 Malcolm Rogers published a paper in which he stated that there was evidence of an Anasazi or Puebloan settlement or pueblo, in the Mojave Sink Region of the Mojave Desert. Since then, archaeologists have cited Rogers' publication and repeated his claim that such a pueblo was located in the Western Mojave Desert. The purpose of this thesis started out as a review of the existing evidence and to locate this pueblo.
    [Show full text]
  • Geology and Soils
    3.7 GEOLOGY AND SOILS This section of the Program Environmental Impact Report (PEIR) describes the geological characteristics of the SCAG region, identifies the regulatory framework with respect to laws and regulations that govern geology and soils, and analyzes the significance of the potential impacts that could result from development of the Connect SoCal Plan (“Connect SoCal”; “Plan”). In addition, this PEIR provides regional-scale mitigation measures as well as project-level mitigation measures to be considered by lead agencies for subsequent, site-specific environmental review to reduce identified impacts as appropriate and feasible. Information regarding paleontological resources was largely obtained from the Paleontological Resources Report prepared by SWCA and included as Appendix 3.7 of this PEIR. 3.7.1 ENVIRONMENTAL SETTING 3.7.1.1 Definitions Alluvium: An unconsolidated accumulation of stream deposited sediments, including sands, silts, clays or gravels. Extrusive Igneous Rocks: Rocks that crystallize from molten magma on earth’s surface. Fault: A fracture or fracture zone in rock along which movement has occurred. Formation: A laterally continuous rock unit with a distinctive set of characteristics that make it possible to recognize and map from one outcrop or well to another. The basic rock unit of stratigraphy. Holocene: An interval of time relating to, or denoting the present epoch, which is the second epoch in the Quaternary period, from approximately 11,000 years ago to the present time. Liquefaction: The process by which water-saturated sandy soil materials lose strength and become susceptible to failure during strong ground shaking in an earthquake. The shaking causes the pore-water pressure in the soil to increase, thus transforming the soil from a stable solid to a more liquid form.
    [Show full text]
  • Zzyzx Mineral Springs— Cultural Treasure and Endangered Species Aquarium
    Cultural and Natural Resources: Conflicts and Opportunities for Cooperation Zzyzx Mineral Springs— Cultural Treasure and Endangered Species Aquarium Danette Woo, Mojave National Preserve, 222 East Main Street, Suite 202, Barstow, California 92311; [email protected] Debra Hughson, Mojave National Preserve, 222 East Main Street, Suite 202, Barstow, California 92311; [email protected] A Brief History of Zzyzx Human use has been documented at Soda Dry Lake back to the early predecessors of the Mohave and Chemehuevi native peoples, who occupied the land when the Spanish explorers first explored the area early in the 19th century. Soda Springs lies in the traditional range of the Chemehuevi, who likely used and modified the area in pursuit of their hunter–gatherer econo- my.Trade routes existed between the coast and inland to the Colorado River and beyond for almost as long as humans have occupied this continent. These routes depended on reliable springs, spaced no more than a few days’ walk apart, and Soda Springs has long been a reliable oasis in a dehydrated expanse. The first written record of Soda Springs Soda Springs, dubbed “Hancock’s Redoubt” comes from the journals of Jedediah Strong for Winfield Scott Hancock, the Army Smith, written in 1827 when he crossed Soda Quartermaster in Los Angeles at the time. The Lake on his way to Mission San Gabriel. Army’s presence provided a buffer between Smith was the first American citizen to enter the emigrants from the East and dispossessed California by land. He crisscrossed the west- natives. California miners also traveled the ern half of the North American continent by Mojave Road on their way to the Colorado foot and pack animal from 1822 until he was River in 1861.
    [Show full text]
  • The California Deserts: an Ecological Rediscovery
    3Pavlik-Ch1 10/9/07 6:43 PM Page 15 Rediscovery Copyrighted Material 3Pavlik-Ch1 10/9/07 6:43 PM Page 16 Copyrighted Material 3Pavlik-Ch1 10/9/07 6:43 PM Page 17 Indians first observed the organisms, processes, and history of California deserts. Over millennia, native people obtained knowledge both practical and esoteric, necessitated by survival in a land of extremes and accumulated by active minds recording how nature worked. Such knowledge became tradition when passed across generations, allowing cul- tural adjustments to the changing environment. The depth and breadth of their under- standing can only be glimpsed or imagined, but should never be minimized. Indians lived within deserts, were born, fed, and raised on them, su¤ered the extremes and uncertainties, and passed into the ancient, stony soils. Theirs was a discovery so intimate and spiritual, so singular, that we can only commemorate it with our own 10,000-year-long rediscov- ery of this place and all of its remarkable inhabitants. Our rediscovery has only begun. Our rediscovery is not based upon living in the deserts, despite a current human pop- ulation of over one million who dwelling east of the Sierra. We do not exist within the ecological context of the land. We are not dependant upon food webs of native plants and [Plate 13] Aha Macav, the Mojave people, depicted in 1853. (H. B. Molhausen) REDISCOVERY • 17 Copyrighted Material 3Pavlik-Ch1 10/9/07 6:43 PM Page 18 Gárces 1776 Kawaiisu Tribal groups Mono Mono Tribe Lake Aviwatha Indian place name Paiute Inyo Owens Valley
    [Show full text]
  • Endogenic Carbonate Sedimentation in Bear Lake, Utah and Idaho, Over the Last Two Glacial-Interglacial Cycles
    The Geological Society of America Special Paper 450 2009 Endogenic carbonate sedimentation in Bear Lake, Utah and Idaho, over the last two glacial-interglacial cycles Walter E. Dean U.S. Geological Survey, Box 25046, MS 980 Federal Center, Denver, Colorado 80225, USA ABSTRACT Sediments deposited over the past 220,000 years in Bear Lake, Utah and Idaho, are predominantly calcareous silty clay, with calcite as the dominant carbonate min- eral. The abundance of siliciclastic sediment indicates that the Bear River usually was connected to Bear Lake. However, three marl intervals containing more than 50% CaCO3 were deposited during the Holocene and the last two interglacial intervals, equivalent to marine oxygen isotope stages (MIS) 5 and 7, indicating times when the Bear River was not connected to the lake. Aragonite is the dominant mineral in two of these three high-carbonate intervals. The high-carbonate, aragonitic intervals coincide with warm interglacial continental climates and warm Pacifi c sea-surface tempera- tures. Aragonite also is the dominant mineral in a carbonate-cemented microbialite mound that formed in the southwestern part of the lake over the last several thousand years. The history of carbonate sedimentation in Bear Lake is documented through the study of isotopic ratios of oxygen, carbon, and strontium, organic carbon content, CaCO3 content, X-ray diffraction mineralogy, and HCl-leach chemistry on samples from sediment traps, gravity cores, piston cores, drill cores, and microbialites. Sediment-trap studies show that the carbonate mineral that precipitates in the surface waters of the lake today is high-Mg calcite. The lake began to precipitate high- Mg calcite sometime in the mid–twentieth century after the artifi cial diversion of Bear River into Bear Lake that began in 1911.
    [Show full text]
  • Late Tertiary and Quaternary Geology of the Tecopa Basin, Southeastern California
    DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY LATE TERTIARY AND QUATERNARY GEOLOGY OF THE TECOPA BASIN, SOUTHEASTERN CALIFORNIA By John W. Hillhouse MISCELLANEOUS INVESTIGATIONS SERIES Published by the U.S. Geological Survey, 1987 G DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP 1-1728 U. S. GEOLOGICAL SURVEY LATE TERTIARY AND QUATERNARY GEOLOGY OF THE TECOPA BASIN, SOUTHEASTERN CALIFORNIA By John W. Hillhouse ABSTRACT INTRODUCTION Stratigraphic units in the Tecopa basin, located in SCOPE OF THE INVESTIGATION southeastern California, provide a framework for The objectives of this study were to establish the interpreting Quaternary climatic change and tectonism distribution, age, and structure of Quaternary deposits in along the present Amargosa River. During the late Pliocene the Tecopa basin. This information provides a basis for and early Pleistocene, a climate that was appreciably interpreting past episodes of faulting and climatic change in wetter than today' s sustained a moderately deep lake in the Amargosa River drainage system. The Tecopa basin is the Tecopa basin. Deposits associated with Lake Tecopa ideal for studies of Quaternary history because erosion has consist of lacustrine mudstone, conglomerate, volcanic ash, clearly exposed the stratigraphy, and the deposits of and shoreline accumulations of tufa. Age control within the Pleistocene Lake Tecopa have proven to be datable. lake deposits is provided by air-fall tephra that are Volcanic ash beds within the lake deposits have been correlated with two ash falls from the Yellowstone caldera, chemically correlated with · isotopically dated volcanic the Lava Creek (0.62 Ma) and Huckleberry Ridge (2.02 sources in the Yellowstone (Wyoming) and Long Valley Ma) Tuffs, and one from the Long Valley caldera, the (California) calderas (lzett, 1981; Sarna-Wojc:cki and Bishop Tuff (0.
    [Show full text]
  • Groundwater Geology and Hydrology of Death Valley National Park
    National Park Service U.S. Department of the Interior Natural Resource Stewardship and Science Groundwater Geology and Hydrology of Death Valley National Park, California and Nevada Natural Resource Technical Report NPS/NRSS/WRD/NRTR—2012/652 ON THE COVER The Amargosa River in the southeast part of Death Valley National Park during a flash flood in February 2005 Photography by: A. Van Luik Groundwater Geology and Hydrology of Death Valley National Park, California and Nevada Natural Resource Technical Report NPS/NRSS/WRD/NRTR—2012/652 M. S. Bedinger Hydrologist U.S. Geological Survey, Retired Carlsborg, WA J. R. Harrill Hydrologist U.S. Geological Survey, Retired Carson City, NV December 2012 U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Fort Collins, Colorado The National Park Service, Natural Resource Stewardship and Science office in Fort Collins, Colorado, publishes a range of reports that address natural resource topics of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and envi- ronmental constituencies, and the public. The Natural Resource Technical Report Series is used to disseminate results of scientific studies in the physical, biological, and social sciences for both the advancement of science and the achievement of the National Park Service mission. The series provides contributors with a forum for displaying comprehensive data that are often deleted from journals because of page limitations. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scien- tifically credible, technically accurate, appropriately written for the intended audience, and designed and pub- lished in a professional manner.
    [Show full text]
  • Two-Stage Formation of Death Valley
    Two-stage formation of Death Valley Ian Norton* Jackson School of Geosciences, Institute for Geophysics, University of Texas at Austin, J.J. Pickle Research Campus, Bldg. 196, 10100 Burnet Road (R2200), Austin, Texas 78758-4445, USA ABSTRACT lar to the core complex at Tucki Mountain, (1966), on the basis of the morphology of the at the northern end of the range. The Basin valley and occurrence of strike-slip faults, sug- Extension in Death Valley is usually inter- and Range extensional detachment tracks gested that Death Valley was formed as a strike- preted as a combination of low-angle Basin over the top of the range, with extensional slip pull-apart basin, with the basin forming and Range–style extension and strike slip allochthons perched on the eastern fl anks of between the Northern Death Valley–Furnace associated with the developing Pacifi c-North the range. This modifi ed model for evolution Creek fault to the north and the Southern America plate boundary in western North of Death Valley suggests a strong link between Death Valley fault zone to the south (Fig. 2). America, with these two tectonic regimes timing and style of deformation in the basin This idea has been incorporated into several operating synchronously in Death Valley. with the developing Pacifi c-North America models for the structural evolution of Death Examination of structural, stratigraphic, plate boundary, particularly eastward propa- Valley. Miller and Pavlis (2005) divided these and timing relationships in the region sug- gation of this boundary. models into two categories, depending on how gests that this interpretation needs revision.
    [Show full text]