Geology of Nevada with an Emphasis On
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Assembly Committee on Government Affairs-April 4
MINUTES OF THE MEETING OF THE ASSEMBLY COMMITTEE ON GOVERNMENT AFFAIRS Seventy-Ninth Session April 4, 2017 The Committee on Government Affairs was called to order by Chairman Edgar Flores at 8:13 a.m. on Tuesday, April 4, 2017, in Room 3143 of the Legislative Building, 401 South Carson Street, Carson City, Nevada. The meeting was videoconferenced to Room 4404B of the Grant Sawyer State Office Building, 555 East Washington Avenue, Las Vegas, Nevada. Copies of the minutes, including the Agenda (Exhibit A), the Attendance Roster (Exhibit B), and other substantive exhibits, are available and on file in the Research Library of the Legislative Counsel Bureau and on the Nevada Legislature's website at www.leg.state.nv.us/App/NELIS/REL/79th2017. COMMITTEE MEMBERS PRESENT: Assemblyman Edgar Flores, Chairman Assemblywoman Dina Neal, Vice Chairwoman Assemblywoman Shannon Bilbray-Axelrod Assemblyman Chris Brooks Assemblyman Richard Carrillo Assemblyman Skip Daly Assemblyman John Ellison Assemblywoman Amber Joiner Assemblyman Al Kramer Assemblyman Jim Marchant Assemblyman Richard McArthur Assemblyman William McCurdy II Assemblywoman Daniele Monroe-Moreno Assemblywoman Melissa Woodbury COMMITTEE MEMBERS ABSENT: None GUEST LEGISLATORS PRESENT: Assemblywoman Lesley E. Cohen, Assembly District No. 29 Assemblyman Elliot T. Anderson, Assembly District No. 15 Assemblyman James Ohrenschall, Assembly District No. 12 Minutes ID: 655 *CM655* Assembly Committee on Government Affairs April 4, 2017 Page 2 STAFF MEMBERS PRESENT: Jered McDonald, Committee Policy -
Sunrise Mountain Landfill 1999 Administrative Record
SFUND RECORDS CTR 2095573 - FINAL - REGULATORY COMPLIANCE AUDIT REPORT Sunrise Mountain Landfill Las Vegas, Nevada ASI Project Manager C_)JamesD. ShsMer 002541 PREFACE Regulatory Compliance Audits A regulatory compliance audit of a solid waste landfill consists of an examination based on the requirements of Federal regulations 40 CFR Parts 241 and 257, proposed Federal regulations 40 CFR Part 258. and existing State regulations. Conduct of a regulatory compliance audit includes a review of landfill case file records, supporting documents, and landfill operating practices; interviews with individuals familiar with the operation of the landfill; identification of site conditions; a visual inspection of the facility; and a determination of whether or not hazardous wastes have been or are being disposed of in excess of amounts normally found in household wastes. 0025*2 TABLE OF CONTENTS Section Page PREFACE II TABLE OF CONTENTS Ill LIST OF TABLES v LIST OF FIGURES v EXECUTIVE SUMMARY vl 1.0 INTRODUCTION 1 1.1 Program Purpose, Scope, and Objectives 1 1.2 Pre-lnspection Activities 3 1.3 On-Site Audit Activities 4 1.4 Post-Inspection Activities 5 2.0 FACILITY ENVIRONMENTAL PROFILE 6 2.1 Facility Description 6 2.1.1 Facility Location 6 2.1.2 Environmental Information 7 2.1.2.1 Topography 7 2.1.2.2 Land Use 7 2.1.2.3 Climate 9 2.1.2.4 Biological Features 9 2.1.2.5 Surface Water 10 2.1.2.6 Geology 10 2.2 Facility History 16 2.2.1 History of Owners, Lessees, and Operators 16 2.2.2 History of Site Operations 17 2.2.3 Regulatory History 19 in 002543 -
Central Nevada
University of Nevada Reno LATE CENOZOIC GEOLOGY AND TECTONICS OF STEWART AND MONTE CRISTO VALLEYS, WEST - CENTRAL NEVADA A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science .I by Mark Philip Molinari fit ; December, 1984 ii ABSTRACT Discontinuous right-normal-slip faults comprise the N30 0W trending, 45 kilometer long Stewart - Monte Cristo fault zone (SMCFZ). Initiation of the SMCFZ postdates the 15.5 to 11.0 m.y. Esmeralda Formation. Right-normal-slip >1 meter occurred on the southern segment of the SMCFZ during the 1932 Cedar Mountain earthquake (Ms= 7.2-7.3). Geomor- phic evidence supports at least three and possibly five or six surface faulting events on the southern segment during the latest Pleistocene and Holocene. Gentle folds in the Esmeralda Formation east of and sub-parallel to the SMCFZ are coeval with and genetically related to faulting. Structural development of the SMCFZ is similar to other right-lateral wrench faults and is consistent with labora- tory wrench fault models. The SMCFZ is the youngest and southeasternmost fault of a system of major late Cenozoic, left-stepping, en echelon right-slip faults in the central Walker Lane. - .~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ iii TABLE OF CONTENTS page ABSTRACT .................. S S ii INTRODUCTION . 0 0 1 0 * I Location and Extent of Study Area . S S S S 1 Regional Tectonic and Geologic Setting. S. S a * 0 1 Purpose and Scope ...... a a * a 5 Methodology . 6 Previous Work . 8 Physiography. 10 MESOZOIC STRATIGRAPHY. 13 Sedimentary Rocks . & 13 Mina Formation . 13 Luning Formation . 13 Plutonic Rocks . -
Eocene–Early Miocene Paleotopography of the Sierra Nevada–Great Basin–Nevadaplano Based on Widespread Ash-Flow Tuffs and P
Origin and Evolution of the Sierra Nevada and Walker Lane themed issue Eocene–Early Miocene paleotopography of the Sierra Nevada–Great Basin–Nevadaplano based on widespread ash-fl ow tuffs and paleovalleys Christopher D. Henry1, Nicholas H. Hinz1, James E. Faulds1, Joseph P. Colgan2, David A. John2, Elwood R. Brooks3, Elizabeth J. Cassel4, Larry J. Garside1, David A. Davis1, and Steven B. Castor1 1Nevada Bureau of Mines and Geology, University of Nevada, Reno, Nevada 89557, USA 2U.S. Geological Survey, Menlo Park, California 94025, USA 3California State University, Hayward, California 94542, USA 4Department of Earth and Environment, Franklin & Marshall College, Lancaster, Pennsylvania 17604, USA ABSTRACT the great volume of erupted tuff and its erup- eruption fl owed similar distances as the mid- tion after ~3 Ma of nearly continuous, major Cenozoic tuffs at average gradients of ~2.5–8 The distribution of Cenozoic ash-fl ow tuffs pyroclastic eruptions near its caldera that m/km. Extrapolated 200–300 km (pre-exten- in the Great Basin and the Sierra Nevada of probably fi lled in nearby topography. sion) from the Pacifi c Ocean to the central eastern California (United States) demon- Distribution of the tuff of Campbell Creek Nevada caldera belt, the lower gradient strates that the region, commonly referred and other ash-fl ow tuffs and continuity of would require elevations of only 0.5 km for to as the Nevadaplano, was an erosional paleovalleys demonstrates that (1) the Basin valley fl oors and 1.5 km for interfl uves. The highland that was drained by major west- and Range–Sierra Nevada structural and great eastward, upvalley fl ow is consistent and east-trending rivers, with a north-south topographic boundary did not exist before with recent stable isotope data that indicate paleodivide through eastern Nevada. -
Utah Geological Association Publication 30.Pub
Utah Geological Association Publication 30 - Pacific Section American Association of Petroleum Geologists Publication GB78 239 CENOZOIC EVOLUTION OF THE NORTHERN COLORADO RIVER EXTEN- SIONAL CORRIDOR, SOUTHERN NEVADA AND NORTHWEST ARIZONA JAMES E. FAULDS1, DANIEL L. FEUERBACH2*, CALVIN F. MILLER3, 4 AND EUGENE I. SMITH 1Nevada Bureau of Mines and Geology, University of Nevada, Mail Stop 178, Reno, NV 89557 2Department of Geology, University of Iowa, Iowa City, IA 52242 *Now at Exxon Mobil Development Company, 16825 Northchase Drive, Houston, TX 77060 3Department of Geology, Vanderbilt University, Nashville, TN 37235 4Department of Geoscience, University of Nevada, Las Vegas, NV 89154 ABSTRACT The northern Colorado River extensional corridor is a 70- to 100-km-wide region of moderately to highly extended crust along the eastern margin of the Basin and Range province in southern Nevada and northwestern Arizona. It has occupied a criti- cal structural position in the western Cordillera since Mesozoic time. In the Cretaceous through early Tertiary, it stood just east and north of major fold and thrust belts and also marked the northern end of a broad, gently (~15o) north-plunging uplift (Kingman arch) that extended southeastward through much of central Arizona. Mesozoic and Paleozoic strata were stripped from the arch by northeast-flowing streams. Peraluminous 65 to 73 Ma granites were emplaced at depths of at least 10 km and exposed in the core of the arch by earliest Miocene time. Calc-alkaline magmatism swept northward through the northern Colorado River extensional corridor during early to middle Miocene time, beginning at ~22 Ma in the south and ~12 Ma in the north. -
Characterization of Hydraulic Properties Of
Final Report for Award No. DE-FG03-94ER14462 1 Structural Heterogeneities and Paleo Fluid Flow in an Analog Sandstone Reservoir 2001-2004 By David Pollard and Atilla Aydin Department of Geological and Environmental Sciences Stanford University Stanford, California DOE, BES, and Chemical Sciences, Geosciences, and Biosciences Division Final Report for Award No. DE-FG03-94ER14462 2 TABLE OF CONTENTS TABLE OF CONTENTS ............................................................................................................................................2 EXECUTIVE SUMMARY.........................................................................................................................................3 INTRODUCTION AND BACKGROUND ...............................................................................................................4 GEOLOGIC AND STRUCTURAL SETTING .....................................................................................................................4 Regional Geology.................................................................................................................................................4 Principal Structural Elements of the Aztec Sandstone.........................................................................................5 SUMMARY RESULTS FROM THE GRANT PERIOD ........................................................................................6 1. CHEMICAL CHARACTERIZATION OF COLORED ALTERATION BANDS AND PALEO FLUID FLOW .................................6 2. CHARACTERIZING -
The Geology and Paleontology of Tule Springs Fossil Beds National Monument, Nevada
The Geology and Paleontology of Tule Springs Fossil Beds National Monument, Nevada On December 19, 2014, Tule Springs Fossil Beds National Monument in Nevada was established by Congress as the 405th unit of the National Park Service to “conserve, protect, interpret, and enhance for the benefit of present and future generations the unique and nationally important paleontological, scientific, educational, and recreational resources and values of the land” (P.L. 113-291, sec. 3092). Photograph by Eric Scott, Cogstone Resource Management, Inc., used with permission. The upper Las Vegas Wash cuts through sediments formed by ancient springs and marshes that blanketed the Las Vegas Valley floor during the Pleistocene Epoch. These deposits have yielded thousands of vertebrate fossils and contain valuable information on past climatic and environmental conditions. This is Tule Springs Fossil Beds National Monument. A Brief History of Tule Springs techniques with massive earth-moving animals (Haynes, 1967). Consequently, activities. Heavy construction equipment the hypothesis that early humans coexisted Vertebrate fossils have been known carved enormous trenches into the sedi- with Pleistocene megafauna at Tule from the Las Vegas Valley for more than ments at Tule Springs to expose vertical Springs was disproven, and interest in the a century, beginning in 1903 when Josiah walls as deep as 13 meters (nearly site faded. A long intermission in scientific Spurr of the U.S. Geological Survey 43 feet!), which allowed the sediments to research followed, lasting until the 2000s reported teeth and bones in the sedi- be studied in detail. Geologist C. Vance when museum scientists conducted com- ments exposed in the wash between Corn Haynes, Jr., directed the geological inves- prehensive and systematic paleontological Creek Springs and Tule Springs (Spurr, tigations and subdivided the fossil-rich excavations of the area. -
Carlin-Type Gold Deposits in Nevada: Critical Geologic Characteristics and Viable Models
©2005 Society of Economic Geologists, Inc. Economic Geology 100th Anniversary Volume pp. 451–484 Carlin-Type Gold Deposits in Nevada: Critical Geologic Characteristics and Viable Models JEAN S. CLINE,† University of Nevada, Las Vegas, 4505 Maryland Parkway, Box 454010, Las Vegas, Nevada 89154-4010 ALBERT H. HOFSTRA, Mineral Resources Program, U.S. Geological Survey, Mail Stop 973, Box 25046, Denver, Colorado 80225 JOHN L. MUNTEAN, Nevada Bureau of Mines and Geology, Mail Stop 178, University of Nevada, Reno, Nevada 89557-0088 RICHARD M. TOSDAL, AND KENNETH A. HICKEY Mineral Deposit Research Unit, University of British Columbia, 6339 Stores Road, Vancouver, British Columbia, Canada V6T 1Z4 Abstract Carlin-type Au deposits in Nevada have huge Au endowments that have made the state, and the United States, one of the leading Au producers in the world. Forty years of mining and numerous studies have pro- vided a detailed geologic picture of the deposits, yet a comprehensive and widely accepted genetic model re- mains elusive. The genesis of the deposits has been difficult to determine owing to difficulties in identifying and analyzing the fine-grained, volumetrically minor, and common ore and gangue minerals, and because of postore weathering and oxidation. In addition, other approximately contemporaneous precious metal deposits have overprinted, or are overprinted by, Carlin-type mineralization. Recent geochronological studies have led to a consensus that the Nevada deposits formed ~42 to 36 m.y. ago, and the deposits can now be evaluated in the context of their tectonic setting. Continental rifting and deposi- tion of a passive margin sequence followed by compressional orogenies established a premineral architecture of steeply dipping fluid conduits, shallow, low dipping “traps” and reactive calcareous host rocks. -
F I N a L Mineral Assessment Report
BLM F I N A L MINERAL ASSESSMENT REPORT Battle Mountain District Office - Nevada J A N U A R Y 2 0 1 2 This page intentionally left blank Bureau of Land Management Mineral Assessment Report SUMMARY The Bureau of Land Management (BLM) Battle Mountain District Office (BMDO) is in the process of revising the district’s Resource Management Plan (RMP). As part of the RMP revision process, the BLM is required to prepare a Mineral Assessment Report providing information regarding mineral occurrences and potential within the BMDO Planning Area (planning area). This report provides an intermediate level of detail for mineral assessment as prescribed in BLM Manual 3060 (BLM 1994). Information presented in this report will be summarized and incorporated into an Environmental Impact Statement (EIS) for the proposed RMP and into the final RMP. The geologic history of central and southern Nevada and the planning area is very complex and includes two major cycles of sedimentation (western and eastern facies sources), episodic thrust faulting, mountain building, and associated intrusive and igneous activity. More recent geologic history includes a period of crustal extension that was accompanied by bimodal (rhyolite-basalt) volcanism, large volume caldera volcanism, and basin and range block-faulting resulting in high-levels of shallow crustal heat flow. The regional and local geologic setting has been instrumental in the location of and potential for numerous economic metallic mineral deposits in the planning area, as well as development of economic geothermal resources. MINING AND MINERAL ACTIVITY IN NEVADA Mineral exploration, particularly for gold, is an ongoing enterprise in Nevada by both operators of existing mines and by other exploration companies. -
Rocks at the GBSSRL Reception Counter
Rocks at the Reception Counter of the Great Basin Science Sample and Records Library All the rocks in the wooden core boxes on the front of the reception counter are from Nevada. They include some geologically and historically significant rocks: the Nevada State Rock (sandstone), one of the oldest rocks in Nevada (2.5-billion-year-old gneiss from Angel Lake), rocks from the “Great Unconformity” separating Precambrian gneiss and Cambrian sandstone (from Frenchman Mountain, where rocks like those at the base of the Grand Canyon are exposed), ore from the Comstock Lode at Virginia City (important in statehood, our nickname, the Silver State, and the motto “Battle Born”), rock from the top of Slide Mountain (which, as measured by high-precision global positioning system instruments, moved up and to the northeast in 2003 in response to probable magma injection at the north end of Lake Tahoe), and some of the youngest rocks in Nevada (caliche from Las Vegas Valley and ferricrete from Geiger Grade). These rocks have been cut to simulate diamond drill core. The Great Basin Science Sample and Records Library houses many boxes of core and cuttings from various mineral, oil, geothermal, and water exploration holes drilled in the State. Slabs of a few different background rocks provide contrast with the Nevada- shaped pieces. The countertop itself is polished Juparana Columbo "granite," which is actually, by geological definitions, a gneiss; it comes from India and looks somewhat like 1.7-billion-year-old gneiss from southern Nevada. Except where noted, the samples were collected by Jon Price, State Geologist and Director of the Nevada Bureau of Mines and Geology. -
Abstract Introduction Faults Formed by Shearing Along Preexisting
EVOLUTION OF A STRIKE-SLIP FAULT NETWORK IN SANDSTONE Eric Flodin Stanford University, Stanford, CA 94305 email: [email protected] Abstract Faults formed by shearing along preexisting This paper is a progress report on research concerning discontinuities the evolution of strike-slip networks in sandstone. In the A solid basis exists in the literature for understanding the Valley-of-Fire State Park of southern Nevada, the Juras- initiation and evolution of faults formed along preexisting sic Aztec sandstone is deformed by two strike-slip fault discontinuities. Much of the early work concerning fault sets with different orientations and opposite slip sense. formation and evolution were focused in granites (Segall One fault set is oriented north-northeasterly and shows and Pollard, 1983; Granier, 1985; Martel et al., 1988; apparent left-lateral displacements up to 2.4 km. The other Martel 1990). Other workers have extended these concepts fault set is oriented northwesterly and shows apparent to other lithologies including carbonates (e.g., Willemse right-lateral offsets up to 50 m. At a regional scale, most et al., 1997; Mollema and Antonellini, 1999; Graham et of the right-lateral faults terminate against the larger- al., in review), shales (e.g., Engelder et al., 2001), and sand- offset left-lateral faults and are found localized both be- stones (e.g., Cruikshank et al., 1991; Zhao and Johnson, tween step regions along individual left-lateral faults, 1992; Myers, 1999; Davatzes and Aydin, in review). as well as at the ends of the larger left-lateral faults. At a Joint-based faulting as a prominent deformation smaller scale, right- and left-lateral faults show mutu- mechanism in sandstone was first described by Myers ally abutting relationships. -
The Geology of the Nevada Test Site and Surrounding Area
The Geology of the Nevada Test Site and Surrounding Area Clark and Nye Counties, Nevada July 5-7, 1989 Field Trip Guidebook T 186 Leaders: H. Lawrence McKague Paul P Orkild Steven R Mattson Contributions By: F M. Byers Bruce M. Crowe E. D. Davidson Holly A. Dockery Terry A. Grant E. L Hardin Robert A. Levich A. C Matthusen Robert C Murray H. A. Perry Donna Sinks American Geophysical Union, Washington, D.C. Copyright 1989 American Geophysical Union 2000 Florida Ave., N.W., Washington, D.C. 20009 ISBN: 0-87590-636-2 Printed in the United States of America THe Geology of the Nevada Test Site and Surrounding Area COVER A view southeast across Mercury, NV towards the snow covered Spring Mountains. Mt. Charleston is the high peak in the Spring Mountains near the left edge of the photograph. The bare ridge Just beyond Mercury is the southwestern extension of the Spotted Range. Mercury Valley is the northwest extension of the Las Vegas shear zone. Leaders: Lawrence McKague Lawrence Livermore National Laboratory P.O. Box 279, L-279 Livermore, CA 94550 Paul Orkild U.S. Geological Survey Steven Mattson S.A.I.C. Suite 407 Valley Bank Building 101 Convention Center Dr. Las Vegas, NV 89109 IGC FIELD TRIP T186 THE GEOLOGY OF THE NEVADA TEST SITE AND SURROUNDING AREA: A FIELD TRIP FOR THE 28th INTERNATIONAL GEOLOGICAL CONGRESS H. Lawrence McKague(l), Paul P. Orkild(2), Steven R. Mattson(3) With Contributions by F. M,. Byers(4), Bruce M. Crowe(4), E. D. Davidson(3) Holly A. Dockery (1), Terry A.