 | | Report (volume) | | BULLETIN 502 THE EAGLE RIVER REGION SOUTHEASTERN ALASKA BY ADOLPH KNOPF WASHINGTON GOVERNMENT PRINTING.......................................... California prospect....................................................... Au.ro.ra. B.Qrealis prospect,,,,,,,, ,,,, ,,,,.,,,,,,,,,,,,,,,,,,,,, .-.... 3 5 7 8 9 9...Page. Bessie prospect........................................................ 48 Alaska-Washington property...................................... 50 Qleson prospect.............................................. |  | | Report (issue) | | 1)+%#. 5748'; ,WPGCW #NCUMC Alaska Resource Data File Juneau quadrangle Descriptions of the mineral...throughout Alaska. o o o o o o o o Distribution of mineral occurrences in the Juneau 1:250,000-scale...000-scale quadrangle, Alaska This and related reports are accessible through the USGS World Wide Web site...authored by: John C. Barnett and Lance D. Miller Juneau, AK This report is preliminary and has not been...the U.S. Government. OPEN-FILE REPORT 03-456 Alaska Resource Data File JU001 Site name(s): Unnamed |  | | Report (issue) | | nes, prospects and mineral occurrences throughout Alaska. 6 I50" ctf o3 S _ --1.G184 LG1B6 ctf LG030...occurrences in the Livengood 1:250, 000-scale quadrangle, Alaska This and related reports are accessible through...(907) 786-7424. This compilation is authored by: Alaska 03 'B- ' ** o £2 0) j 1 Q o C/5 14- ...Curtis J. Freeman and Janet Schaefer Fairbanks, Alaska C^ '*s*^__^r*&*'' Location of map ar«a In Aluki...the U.S. Government. OPEN-FILE REPORT 99-574 Alaska Resource Data File LG001 Site name(s): Troublesome |  | | Journal (volume) | | DECEMBER 1913 Mining and 429 MARKET STREET Scientific Press SAN FRANCISCO, CALIFORNIA^ 1'^ h i* zcv...zcv >- IIMDEX: Page. of Costa Rica Abanearez Gold Fields 206, 358, 511, 666, 1032 833 **2, 34, ...company report Abosso mine. West Africa Acacia Mining Co., Colorado 270, Editorial. Accident prevention...Arizona Accident Gold Mining Co., Subil mine, French Gulch, Rules, Copper California Accidents, coal-mine...Tramway, one-rope Tramway, Saline Valley Salt Co., California . . . . . . Aerolites Africa, copper In |  | | Report (volume) | | CALIFORNIA AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY Instructions on ordering publications...ANGELES; California--Federal Bldg., Rm. 7638, 300 N. Los Angeles St. • MENLO PARK, California--Bldg. 3...Rm. 8105,125 South State St. • SAN FRANCISCO, California--Customhouse, Rm. 504, 555 Battery St. • SPOKANE...Riverside Ave.. • ANCHORAGE, Alaska--Rm. 101,4230 University Dr. • ANCHORAGE, Alaska--Federal Bldg, Rm. E-146...Center, Box 25286 Denver, CO 80225 Residents of Alaska may order maps from Alasklll Distribution Section |  | | Report (volume) | | it helpful to refer to Survey Bulletin 507, "The mining districts of the western United States," and to...abundant, it may have been completely exhausted by mining or quarrying. Deposits of minerals of wide distribution...because they occur in sufficient quantity to warrant mining for their usual products but because they furnish...Arkansas..........Dr. A. H. Purdue, Nashville, Tenn. California........Mr. William H. Storms, San Francisco....Melaconite. Corundum (emery). Found in various places in gold region, including Coosa County, near Mount Olive |  | | Journal (issue) | | Columbia River 2 Barahonaite, a New Mineral from Gold Hill, Utah Don Howard After many years languishing...crystals found in the tunnel on the 80 ft. level at Gold Hill Mine, Tooele Co., Utah has an official name...mineral? There was certainly plenty of material at Gold Hill to analyze, but the tiny crystallites were...analyzed from material from a new find at the Dolores prospect in Murcia Province, southeastern Spain. The new...Na)12Al2(AsO4)8(OH)x·nH2O is pale blue in color. At Gold Hill, it forms beads, coalesced beads, and crusts |  | | Journal (issue) | | S STATE OF CALIFORNIA DEPARTMENT OF NATURAL RESOURCES RICHARD SACHSE, Director DIVISION OF MINES...BRADLEY State Mineralogist January, 1941 No. CALIFORNIA JOURNAL OF MINES AND GEOLOGY QUARTERLY CHAPTER...BUILDING, SAN FRANCISCO CALIFORNIA 95183 LIBRARY UNIVERSITY OF- CALIFORNIA DAV I 1 DIVISION OF...A. Logan, District Mining Engineer C. Jenkins, Chief Geologist McK. Laizure, District W. Burling...Tucker, Reid J. Mining Engineer District Sampson, Assistant Mining Engineer District Engineer Chas |  | | Report (volume) | | ............................................ California....................................................................................... 102 District of Columbia ....................................to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to...abundant it may have been completely exhausted by mining or quarrying. Deposits of minerals that are widely...because they occur in sufficient quantity to warrant mining for their usual products, but because they furnish |  | | Journal (issue) | | COVERED BY PATENTS AND APPLICATIONS IN THE MAJOR MINING cewrens: oF THe woRtoes F _—, pf fj / N >,...feel that you are getting good i Familiar with mining structions, Ay as a = A i) al )q equipment ...“Inc , 124 West Fourth Street, MINING WORLD, published Ente vear. California, U.S \ Subsscription in United...lass matter at the post office at Los Angeles, California, under Act of March 3, 187 s second ROADS CESS...rock breaking. This distinguished service to the mining and contracting industry is the result of carefully |  | | Journal (volume) | | recent developments and advances evolved in the mining and metallurgical world. Embracing the latest statistics...10 10 10 10 10 10 10 10 10 10 The Engineering & Mining Journal 505 Pearl Street, New York 20 Bucklersbury...and Mining Journal; Member Institution of Chemical Mining Member American Institute of Mining Engineeri;...ENGINEERING AND MINING JOURNAL (Incorporated) I906 Copyright, 1906, BY The Engineering and Mining Journal ... Lead in Idaho. Gold and Silver in Idaho. Brinsmade, Robert B. Professor of Mining, New Mexico State |  | Naranjo, Andrés, Horner, Johannes, Jahoda, Rudolf, Diamond, Larryn W., Castro, Adriana, Uribe, Aura, Perez, Carolina, Paz, Hermel, Mejia, Carlos, Weil, Jonas (2018) La Colosa Au Porphyry Deposit, Colombia: Mineralization Styles, Structural Controls, and Age Constraints. Economic Geology, 113 (3) 553-578 doi:10.5382/econgeo.2018.4562 | Journal (article/letter/editorial) | | propylitic alteration confined to the late stage. Three gold mineralization events are recognized at La Colosa... The early-stage intrusions contain the highest gold grades varying from 0.75 to 1 g/t Au, associated...the gold grades drop to 0.5 to 0.75 g/t Au, and pyrrhotite and pyrite are the major sulfides. Gold grades...g/t Au in the late-stage porphyries. The second gold-precipitating event formed sheeted veinlets of drusy...hydrothermal brine (21–28 wt % NaCl equiv) deposited gold at high grades (>1.5 g/t Au over >10 m drill core |  | | Report (volume) | | and abridgment of the literature from 1858, when gold was discovered, through 1957 (with a few additions...location and means of access to all the metallic mining districts in the State, as well as a large number...identified in Colorado-more than in any State except California. In addition to these true species, dozens of...important source material from the earliest reports of gold discoveries in 1858, through 1958. Compilation and...billion worth, came from 1ninerals. F·xcept for native gold and the rock-forming minerals that comprise construction |  | | Book | | i I 3 LIBRARY J ()l" T" E UNIVERSITY OF CALIFORNIA. (3r! FT L) 1: EM Jewish)” _....9%939 ‘ Cid/$5......................................... . . Free gold ................................................... . . . . . . . . . . . _ . _ . Future of the district . _ . . . . . . . . _ . . . . . . . . . . . .... w . . . . . . . . . . . . . . . . . . . . . .. Gold Anchor mine . . . . . . . . . . _ _ . . . . . .... . . . . . . . . . _ . . . . . . . . . . . . California mine . . _ . . . . . . . . . i . . . . . . . |  | | Book | | 000 years ago. T h e setting is all southern California. T h e stage is a burnished field of grass, the...their living and highly endangered relative, the California condor. T h e foreground of this panorama is...met my dad when she came back to Chicago from California to see her parents. It was just after World War...then veered west through present-day Nevada and California, eventually emptying into the Pacific Ocean....marking the jagged boundary b e tween southern California and Arizona. Here the Colorado's sluggish waters |
|
