 | | Report (issue) | | Geology and Ore Deposits of the Rico District, Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 723...723 Geology and Ore Deposits of the Rico District, Colorado By EDWIN T. McKNIGHT GEOLOGICAL SURVEY ...discussion of the geology and potential of a famous old silver camp which~ under modern mineral technology~ became...------------------------------------Location and geography of district -----------History --------------------------...-------------Middle and Upper ( ?) Pennsylvanian Series_ Rico Formation ---------------------Permian System - |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...............171 J. M. Shannon and G. C. Shannon Rico ..................................................SPECIMENS from the collection of the Geology Museum, Colorado School of Mines. See page 242 for a full description... All rights reserved. notes fromthej EDITOR COLORADO-III Here we are with our third special issue devoted...devoted to the mines and minerals of Colorado. As most long-time subscribers know, the first in the series |  | | Report (issue) | | GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H. GARREY........................................ _... _._ Silver Plume granite (porphyritic biotite granite) ....................._.......... . Distribution in Colorado ................................................-Discussion of principles ... 97 Gold-bearing and silver-bearing groups of veins ................... _..... _............ _' 97 Relative distribution of silver-bearing and of predominantly gold-bearing veins |  | | Report (volume) | | . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...ete 11 st r ng of rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic...on the Colorado Plateau sparked several periods of exploratIon that ultimately led to a mining "boom ll |  | | Other Paper | | ^ JIM HERRON, BRUCE STOVER AND PAUL KRABACHER COLORADO DIVISION OF MINERALS AND GEOLOGY OCTOBER, 1999...EUREKA JIM HERRON, BRUCE STOVER AND PAUL KRABACHER COLORADO DIVISION OF MINERALS AND GEOLOGY OCTOBER, 1999...Baseline Data Collection Water Quality Sampling Mine Waste Sampling Watershed Chemistry Upper Animas...Hydrologic Controls Mine Site Characterization Animas River Headwaters and Burrows Creek Location Geologic...and Burrows Creek Site Descriptions Unknown Prospect North of Denver Lake Lucky Jack Mine Site Little |  | | Report (issue) | | DIRECTOR ECONOMIC GEOLOGY OF THE BINGHAM MINING DISTRICT, UTAH By JOHN MASON BODTWELL WITH A SECTION...DIRECTOR ECONOMIC GEOLOGY OF THE BINGHAM MINING ^DISTRICT, UTAH By JOHN MASON BOUTWELL WITH A SECTION...... 25 PART I. AREAL GEOLOGY OF THE BINGHAM DISTRICT, BY ARTHUR KEITH. Geography...............--.... PART II. ECONOMIC GEOLOGY OF THE BINGHAM MINING DISTRICT, UTAH, HY JOHN MASON BOUTWELL. Introduction...... Mining industry in Utah............................................................. Mining industry |  | | Report (issue) | | GEOLOGY AND ORE DEPOSITS OF TILE LEADVILLE MINING DISTRICT, COLORADO BY S. F. EMMONS, J. D. IRVING, AND G...anticline _ Origin of the Iron-Mikado fault 61 Colorado Prince anticline _ group _ 95 61 Mosquito Gulch...fold-fault _ Faults in the eastern part of the district 95 62 Kokomo syncline_ Faults southeast_ of _..._ Leadville 62 the_ Fryer Hill folds _ 62 district _ 95 Warping and drag along normal faults, _ _ _ 96...Hill _ 103 66 Tucson mine _ Area between Iron and Adelaide faults_ _ _ Yak_ tunnel and its Area between |  | | Book (edition) | | at the outstanding shows of the annual San Diego County Fair at Del Mar, California. In addition, the collections...Los Angeles, California, E. M. Gunnell, Denver, Colorado, Specimen Minerals, Ltd., Woodville West, South...one species only, or even specimens only from one mine. Whatever limits the collector imposes on himself...certain metals INTRODUCTION ll such as gold, silver, iron, etc. Even these are really never pure because...Ferrum - from Plumbum - from Hydrargyrum Potassium Silver Sodium Tin Tungsten 1( Ag Na Sn w -from Kalium |  | | Book (edition) | | the outstanding sho,vs of the annual San Diego County Fair at Del Mar, California. In addition, the collections...Angeles, California, E. l\lf. Gunnell, Denver, Colorado, Specin1en Minerals, Ltd., Woodville \Vest, South...useful in the arts and sciences and therefore worth mining. The formation of various types of ore deposits...exhausting examples, it may also be mentioned that silver, lead, and other metals were also discovered, and...Historica, in ,vhich man y observations ,vere made on mining and m ineralogical n1atters in the various portions |
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