 | | Report (issue) | | "\VALCOTT, DIRECTOR GEO LOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT, COLORADO BY \V ALDEl\;IAR... . . . . . . . First geological survey of the district .............................. _• . . . . . ..................... Geological structure of the district ............... _................... __ .. _...._____________ ........ . 100 Petrology of the district ______________ . _______________________________________________...___ _ 113 Chapter IV. -General mineralogy of the district . _______________ .... ____ .. ______________ |  | | Report (issue) | | Economic Geology of the ·central City District .Gilpin County, Colorado By PAUL K. SIMS, A. A. DRAKE...Kibler, 1918. Economic geology of the Central City district, Gilpin County, Colorado, by Paul K. Sims, A.A...Kibler, 1918Economic geology of the Central City district, Gilpin County, Colorado. 1963. (Card 2) 1. Geology...Economic-Colorado-Central City district. 2. Ore-deposits-Colorado-Central City district. 3. Mines and mineral...mineral re. sources-Colorado-Central City district. I. Drake, Avery Ala, 1927joint author. II. Tooker, Edwin |  | | Journal (volume) | | visitors, interested to see how rock have the yellow gold extracted therefrom, and how cleverly the little...val- Through this trough-like depression extends a gold belt reaching a distance of fifteen miles from the...and of greatly varying size. The gold-bearing quartz of the district is associated with these dykes, usually...Street, San Francisco, J. F. S. F. Some Coast Gold $3 00 4 00 Postoffiee as second-class mall matter...Mine of Salt Spring Spring Valley, Cal., 1. Coast Gold Yield in '99; What is Alluvial? Decision of the |  | | Journal (volume) | | zcv >- IIMDEX: Page. of Costa Rica Abanearez Gold Fields 206, 358, 511, 666, 1032 833 **2, 34, ...prevention . . . Queen Co.'s mine, Arizona Accident Gold Mining Co., Subil mine, French Gulch, Rules, Copper...906 Fairbanks district output 1913 945 Fairbanks distrtot sts^mp-raiUs 341 Fineness of gold ati Lift, ... . j Glaciers Gold dredges Gold placer district, new Gold placer production Gold placers Coldstream...Coldstream, No. 17 u: •,• • ••••••• Editorial rule In Nelchina placer district Nome storm Ditto Editorial |  | | Report (volume) | | metallic values from the ores of copper, zinc, lead, gold, silver, graphite, molybdenum, mercury, etcetera...WALTER Former HARVEY WEED, E.M. Geologist in the U. S. Geological Survey, 1883-1906; Member Institution...the iron mining companies of the Lake Superior district is given, and the many mining corporations of...letter. The Wellman-Seaver-Morgan Cleveland, Ohio, U. S. A. Branch Offices: New York, Denver, Seattle...of the Mining Industry Production of Metals in the U. S Yearly Average — Metal Prices Prices of Silver |  | | Journal (volume) | | g Scientific Press December, July to 121 n u u Page Page Acme Motor Truck Co .Resume Adam, H... 327 Agnew, John A .... 89S Editorial Co Alaska Gold Mines Editorial .... 475 Alaska Treadwell .... 441...Lubricants, book review L. B. Lockhart Amprican-made gold-dred?e for New Zealand . . . . . . . . ...823 324 . . . . Operations of Consolidated Gold Fields of South 881 Africa 747 American Mining Congress...Bailey, F. J. .First-aid Baking . . . and 'gold' ore . . . . . 39 241 479 Editorial .... |  | | Journal (volume) | | Montreal Sorby, Fahrenwald, F. A., Cleveland, U. S. Fieldner, A. C, Washington, D. C Foley, Hamilton...Arm 786 Steel Industry Projected '4^ 467 Stewart District Silver Ores, —V. Dolmage 454 Tetrahedrite Occurrences...Grav Sydney Coast Erosion Gold 30 Canada— 1919 Cobalt Production Argonaut Gold Mine, —C. W. Knight, Geol...Placers in Ontario, Dr. Coleman 221, 752 Matachewen Gold Area,—A. G. Burrows, Geol. Report505, 950 Mclntyre-Porcupine...Hollinger Mine 957 Porcupine Gold Mines, Some Notes 856 Porcupine Gold Companies' Assessment Appeal 177 |
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