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A B62 New Front COVER NEVADA BUREAU OF MINES AND GEOLOGY BULLETIN 57 GEOLOGY OF THE WHITE PINE MINING DISTRICT, WHITE PINE COUNTY, NEVADA By FRED L. HUMPHREY MACKAY SCHOOL OF MINES UNIVERSITY OF NEVADA, RENO 1960 University and Community College System of Nevada Bureau of Mines and Geology Jonathan G. Price, Director/State Geologist Nevada 2002 Scientific Research Staff Board of Regents Economic Geology Thalia Dondero, Chair Stephen B. Castor, Research Geologist John W. Erwin, Geophysicist (Emeritus) Liang-Chi Hsu, Research Mineralogist (Emeritus) Mark Alden Daphne D. LaPointe, Research Geologist Jill Derby Keith Papke, Industrial Minerals Geologist (Emeritus) Dorothy Gallagher Joseph V. Tingley, Research Geologist Douglas R. Hill Engineering Geology Linda C. Howard John W. Bell, Research Engineering Geologist Thomas E. Kirkpatrick Geoffrey Blewitt, Research Professor Howard Rosenberg Craig M. dePolo, Research Geologist Alan R. Ramelli, Research Geologist Douglas Seastrand Steve Sisolak Environmental Geology and Hydrogeology Tom Weisner Donald C. Helm, Adjunct Research Scientist P. Kyle House, Research Geologist Paul J. Lechler, Chief Chemist/Geochemist Jane Nichols, Chancellor Lisa Shevenell, Research Hydrogeologist Geologic Mapping Harold F. Bonham, Jr., Research Geologist (Emeritus) James E. Faulds, Research Geologist University of Nevada, Reno Larry J. Garside, Research Geologist John Lilley, President Christopher D. Henry, Research Geologist Research and Administrative Support Staff Mackay School of Mines Administration and Publication Sales Jane C.S. Long, Dean Terri M. Garside, Executive Secretary Cheryl Steed, Management Assistant Charlotte Stock, Sales Manager Analytical Laboratory, Sample Curation, and Geologic Information David Davis, Geologic Information Specialist Paul J. Lechler, Chief Chemist/Geochemist Mario Desilets, Chemist/Quality Assurance Officer Bret Pecoraro, Laboratory Assistant Cartography, Publication Support, Geographic Information Systems, and Databases Robert Chaney, Cartographer/GIS Specialist Electronic edition 2002, printed on demand Ron Hess, Information Systems Specialist/GIS Supervisor Gary Johnson, Information Systems Specialist Dick Meeuwig, Editor Susan L. Tingley, Publication Manager Kris R. Pizarro, Cartographic Supervisor For sale by the Nevada Bureau of Mines and Geology, Jack Hursh, Jr., Cartographer University of Nevada, Reno PAGE CONTENTS Pliocene and/or Pleistocene .......................................................................... Lampson formation................................................................................ .- Belmont fanglomerate ............................................................................ Igneous rocks ............................................................................................................ PAGE ................................................................................................ .................................................................................................................... vii Intrusive rocks Foreword Monte Cristo stock .......................................................................................... Abstract ..................................................................................................................... 1 Seligman stock ........................................................................................ Introduction .............................................................................................................. 2 Age relationship of the two stocks .................................................... Location ............................................................................................................. 2 Rhyolite...................................................................................................... Purpose and scope ............................................................................................ 2 Extrusive rocks ................................................................................................ History ............................................................................................................... 2 ......................................................................................................... Accessibility... ...................................................................................................... 5 Basalt Metamorphic rocks .................................................................................................. Climate and vegetation.................................................................................. 6 Structure.................................................................................................................... Water supply.................................................................................................... 6 General statement........................................................................................... Previous work .................................................................................................. 7 Early normal faults........................................................................................ Acknowledgments ............................................................................................ 7 Folds and thrust faults.................................................................................. Stratigraphy............................................................................................................. 8 Faults accompanying emplacement of the stocks.................................... General statement............................................................................................ 8 Transverse faults............................................................................................ Middle Cambrian.............................................................................................. 9 Late Tertiary normal faults........................................................................ Geddes limestone( ? ) .............................................................................. 9 Tectonic units of the district........................................................................ Secret Canyon shale................................................................................ 9 Pogonip "dome" ...................................................................................... Upper Cambrian .............................................................................................. 14 Treasure Hill unit.................................................................................... Dunderberg shale.................................................................................... 14 East unit.................................................................................................... Upper Cambrian and Lower Ordovician.................................................... 16 Geomorphology ................ ................................................................................... Mount Hamilton group.......................................................................... 16 Physiographic features.................................................................................. Goodwin formation.......................................................................... 17 Cycle of erosion on Pogonip Ridge.............................................................. Pogonip formation.......................................................................... 19 Coalesced alluvial fans.................................................................................. Blackrock Canyon section .............................................................. 22 Pediments .......................................................................................................... Middle Ordovician............................................................................................ 23 Terraces............................................................................................................. ...................................................................................... 23 Eureka quartzite Superposition. .................................................................................................... ............................................................................................ 25 Upper Ordovician Landslides .......................................................................................................... Hanson Creek dolomite.......................................................................... 25 Stream divers~on. .............................................................................................. Silurian and Lower Devonian ( ? ) ................................................................ 26 Alluvial ridge across Illipah Valley ............................................................ ........................................................................ 26 Lone Mountain dolomite Geologic. hlstory. ...................................................................................................... .......................................................................... 28 Middle and Upper Devonian Paleozoic. history. .............................................................................................. .................................................................................... 28 Nevada limestone Cambrian..................................................................................................
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