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| STATE OF CALIFORNIA EARL WARREN. Governor DEPARTMENT OF NATURAL RESOURCES WARREN T. HANNUM, Director...Director DIVISION OF MINES FERRY BUILDING. SAN FRANCISCO OLAF P. 11 JENKINS. Chief SPECIAL REPORT 7-A...LITHIUM-BEARING PEGMATITES OF THE PALA DISTRICT, SAN DIEGO COUNTY, CALIFORNIA By RICHARD H. JAHNS and LAUREN...Archive in 2012 with funding from University of California, Davis Libraries http://archive.org/details...LITHIUM-BEARING PEGMATITES OF THE PALA DISTRICT, SAN DIEGO COUNTY, CALIFORNIA! By Richard H. Jahns* and Lauren |
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| Archive in 2012 with funding from University of California, Davis Libraries http://www.archive.org/det...MINERAL RESOURCES OF SAN DIEGO COUNTY, CALIFORNIA By F. HAROLD WEBER JR., California Division of Mines...Stewart COUNTY REPORT California Division of Mines Ferry Building, LIBRARY UNIVERSITY OF CALIFORNIA DAVIS...DAVIS San 3 and Geology Francisco, 1963 ^ OF STATE OF CALIFORNIA EDMUND G. BROWN, Governor J?...CAMPBELL, Director AND GEOLOGY State Geologist COUNTY REPORT ^ Price $8.00 3 CONTENTS Page ABSTRACT |
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| Archive in 2012 with funding from University of California, Davis Libraries http://www.archive.org/det... PHYSICAL SCI. COUNTY REPORT 7 GEOLOGY AND MINERAL RESOURCES OF IMPERIAL COUNTY, CALIFORNIA Uk QeoloKftf...R&daubced. oj COUNTY IMPERIAL Gedifansua By Paul K. Morton Geologist COUNTY REPORT California Division...Sand Hills, as viewed toward the northwest from County Park. The prevailing wind direction, as indicated...observer and slightly to the right. Photo STATE OP CALIFORNIA EDMUND G. BROWN GOVERNOR JR. THE RESOURCES |
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| quartz. The feldspars are commonly orthoclase or microcline, though a plagioclase, albite, or oligoclase...one of the mines examined around Custer black tourmaline was found, and in many it was abundant in crystals...and contrasts it with the general scarceness of tourmaline in the tin-bearing pegmatites north of Harney...irregular in shape and are very difficult to follow in mining. Some pegmatite bodies lie conformable with the...New York mine, near Caster, S. Dak. of black tourmaline in crystals ranging from 1 inch to several inches |
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| mine__.__._----..._____._______. Prospects on Kelly Mountain.____________________________ Independence mine...prospect___.____________________________________ Homestake prospect...............________._.___-_-_-____ 165..._. __ 190 Evelyn prospect. ______..____-_---___--__-----____---__-___ 192 Homestake mine_--__-----------------..._____-__--_-___-------_-----------------_--_ 198 Blue BeU prospect...._________________________ 203 Phi Kappa mi..._----__--_-----___-_------_'i_ 206 Black Rock prospect.__.___________-___-_---_______--_____ 206 Prospects |
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| 3% miles long near the town of Stibnite, Valley County, Idaho. Ore has been mined from only two deposits...Yellow Pine and Meadow Creek mines of the Bradley Mining Co. The Yellow Pine mine was the largest source...area should add to the total gold output. The district is believed to contain nearly 600,000 ounces of...town of Stibnite, in the Yellow Pine mining district, Valley County, Idaho. (See fig. 9.) It is in a mountainous...area about 1900 during the gold boom at Thunder Mountain, which is about 9 miles east of Stibnite. A little |
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| 17 Climate and vegetation. 18 _._ History of mining and present conditions___________________ 20 ...______ _ Empire Mountains ________________________ San Cayetano Mountains . ______ __ __ Canelo Hills__..._______________ . Placers __ _ Mineralogy ____________ Mining districts, camps, and properties. Helvetia district_...) \ , 1 / i' Mining districts, camps, and properties Continued. Helvetia district Continued. Helvetia...prospect________________________ Peach prospect __ - _ Henrietta prospect-___________________ Ridleymine__ |
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| Theodore Chapin.___ _________ Notes on history of mining development- _____-______----__--____ Geography...distribution________________________________ Ketchikan district.._______________________________________ Vicinity..._ Page 45 49 49 52 57 59 60 66 68 68 Juneau district..... ____________--___-____-_-. Schistose greenstone...rocks-___________________________________ Southern Ketchikan district, by Theodore Chapin_______. 88 90 90 94 94 94...division________________________________-_-___ Juneau district _ _____________________________________ Seymour |
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| Ore Deposits of the Dragoon Quadrangle Cochise County, Arizona By JOHN R. COOPER and LEON T. SILVER ...ore deposits of the Dragoon quadrangle, Cochise County, Arizona, by John R. Cooper and Leon T. Silver...ore deposits of the Dragoon quadrangle, Cochise County, Arizona. 1964. (Card 2) 1. Geology-Arizona-Cochise...author. II. Title: Dragoon quadrangle, Cochise County, Arizona. (Series) For sale by the Superintendent...________________________ _ Winchester· district _________________________ _ Yellowstone district ________________________ |
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| Ore Depostts of the Darwin Quadrangle Inyo County, California GEOLOGICAL SURVEY PROFESSIONAL Prepared...Prepared in cooperation with the of California, Department of Natural Resources, Division of Mines ~ytate...Ore Deposits ofthe Darwin Quadrangle Inyo County, California By WAYNE E. HALL and E. M. MAcKEVETT, ]R...8 Prepared in cooperation with the State of California, Department of Natural Resources, Division of...______________________ _ Mississippian system _________ Tin Mountain limestone. _______________ - __ -_ Perdido formation |
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| PAPER 235 Includes the. Leadville, Colorado, mining district. Prepared in cooperation with the Colorado...Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES GOVERNMENT PRINTING OFFICE...on Mount Evans_ ________________ Faults on Dyer Mountain ________________ Fault complex on East Ball Mountain_____...Sherman__ _ ___________ Faults on West Sheridan Mountain _______ Faults on Mount Sheridan. ______________...Gulch between Hellena and Ball Mountain faults. _____________ Ball Mountain and related faults. ________ |
