 | | Journal (article/letter/editorial) | | alkaline-related gold deposits in the southern Rocky Mountains, USA: inĀÆuence of regional tectonics Received: 5 January...Ma), with deposits restricted spatially to the Colorado mineral belt (CMB). Other alkaline igneous rocks...Mountain front southward, from Cripple Creek in Colorado through New Mexico. All of these deposits are...through hydrously altered LREE-enriched rocks of the Colorado (Yavapai) province have 208Pb/204Pb ratios that...anomalously hot, thick, and light crust beneath Colorado may have been a catalyst for large-scale transfer |  | | Journal (article/letter/editorial) | | 02:13 13 March 2015 CALAVERITE Cripple Creek, Colorado W ith the exception of native gold and electrum...Cripple Creek district, essentially subsequent to the development of all other Colorado gold districts...suggested for this issue, much of which is devoted to Colorado minerals. Calaverite is a yellowish to silver-white...Analyses of calaverite from the Kirkland Lake district, Ontario, Canada, show up to several tenths of...1995). Calaverite is known from the Star mine in Montgomery County, North Carolina, where it occurs rarely |  | | Journal (article/letter/editorial) | | goldāsilver prospect, Fiji: conditions of ore deposition P. G. Spry and N. L. Scherbarth Department of Geological...Atmospheric Sciences, Iowa State University, Ames, Iowa, USA Received October 23, 2005; revised version accepted...associated with various vanadiumbearing minerals: roscoelite, karelianite, vanadian muscovite, Ti-free nolanite...show that the stability fields of calaverite, roscoelite, and karelianite converge in pH-f O2 space near...and likely explain the common coexistence of roscoelite and calaverite in epithermal gold systems elsewhere |  | | Report (issue) | | Geology and Ore Deposits of the La Plata District Colorado By EDWIN B. ECKEL with sections by J. S. WILLIAMS...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES...along the Animas River. _ _ _ Lithology in La Plata district _ _______ Permian system____________________________...along the Animas River._____ Localities in the La Plata quadrangle __ Collections from the Rico formation_____...its tributaries..__________ Localities in the La Plata quadrangle __ Interpretation of the Rico collections |  | | Report (volume) | | Potential and Geology of the San Juan National Forest, Colorado Edited by Richard E. Van Loenen and Anthony B...Survey With a section on Salable Minerals By Andrew G. Raby and JohnS. Dersch U.S. Forest Service U.S....potential and geology of the San Juan National Forest, Colorado I edited by Richard E. Van Loenen and Anthony...; with a section on Salable Minerals I by Andrew G. Raby and John S. Dersch. p. em.- (U.S. Geological...: I 19.3.2127 1. Mines and mineral resources--Colorado-San Juan National Forest. I. Van Loenen, Richard |  | Ronacher, E., Richards, J. P., Reed, M. H., Bray, C. J., Spooner, E. T. C., Adams, P. D. (2004) Characteristics and Evolution of the Hydrothermal Fluid in the North Zone High-Grade Area, Porgera Gold Deposit, Papua New Guinea. Economic Geology, 99 (5) 843-867 doi:10.2113/gsecongeo.99.5.843 | Journal (article/letter/editorial) | | Ā± quartz Ā± Au veins (stage I), and (3) quartz-roscoelite-pyrite-gold veins and breccias (stage II). Stage...are economically the most significant. Quartz-roscoelite-pyrite-gold veins form high-grade zones associated...mineralization is the main focus of this study. The quartz-roscoelite-pyrite-gold assemblage occurs in three texturally...veinlets in which roscoelite-pyrite-gold are more abundant than quartz and in which roscoelite and gold also...breccias in which wall-rock fragments are rimmed by roscoelite-pyrite-gold and minor quartz, followed by vuggy |  | | Report (issue) | | CSts.,NW. DENVER, Colorado-Federal Bldg., Rm. 169,1961 Stout St. LOS ANGELES, California-Federal Eldg.,... Rm. 7638,300 N. Los Angeles St. MENLO PARK, California-Bldg. 3 (Stop 533), Rm. 3128. 345 Middlefield... Rm. 8105,125 South State St. SAN FRANCISCO, California-Customhouse, Rm. 504,555 Battery St. SPOKANE...ROLLA, Missouri-1400 Independence Rd. DENVER, Colorado-Map Distribution, Bldg. 810, Federal Center FAIRBANKS...Part II Geology and Gold Deposits of the Oatman District, Northwestern Arizona By ED DEWITT, JON P. THORSON |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Journal (article/letter/editorial) | | deposit, disĀ covered in 1985, is located in Chongli County, northern Hebei Province, about 160 km northĀ west...minĀ eralized veins have been discovered in the mine, but only five attain economic concentrations. These...FIG. 2. Simplified geological map of the Dongping mine. relationships: Stage I is white quartz-K-feldspar-pyrite...coarse-grained alteration is developed extenĀ sively in the mine. The second stage is bronzecolored and occurs along...alteration actually forms an ore, because it contains 3.29 g/t of gold on average. The third stage consists of |  | | Report (issue) | | Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |  | | Journal (article/letter/editorial) | | 2006; # Springer-Verlag 2006 Editorial handling: P. G. Spry Summary Several magmatic-hydrothermal systems... adularia uncommon Illite=smectiteadularia Roscoelite-illiteadularia Vein-filling crustiform and comb...2003; Cripple Creek, Colorado, Thompson et al., 1985; La Plata County, Colorado, Saunders and May, 1986;...1986; Boulder County, Colorado, Saunders, 1988, 1991; Golden Sunlight, Montana, Spry et al., 1997; Spry...intermediate sulfidation deposits in the Baguio District, Philippines (Cooke and McPhail, 2001), Golden |  | | Journal (issue) | | M i i Quartz var. Rock XI. From Jack Steele's Mine, Black Rapids, Lyndhurst, Ont., Canada. In collection...00 each. Two/$9.00. Three/S 12.00 Four/$15.00. CALIFORNIA CUSTOMERS - PLEASE ADD STATE SALES TAX GROUP...Phylllte Gllsonite Tephroite Oil Shale Pitchstone Roscoelite Chaloedony Chondrodite Red Sandstone Stilpnomelano...P.O. BOX 877 DEPT. RM UNLIMITED RIDGECREST, CALIFORNIA 93555 1 ROCKS and MINERALS OFFICIAL JOURNAL...Greenlaw ................................. Fossil ā A. G. Zvirblis........................................ |  | | Journal (issue) | | this explain why Hydroseals Tee IN THE MAJOR MINING PUMPS PROTECTED CENTERS OF THE WORLD Most... Most of the worldās molybdenum comes from this Colorado pit. The 12,250-ft. elevation doesnāt make the...machines like the āCaterpillarā Diesel products mining throughout the world. Tractors. Bulldozers, Motor...repiling bauxite and loading trucks for Reynolds Mining Corporation, near Hurricane Creek, Arkansas. CATERPILLAR...HRS ee) SY Ne Ed TI OT |IOS He~Ā¢ fZ09) 4) Ve (Le\'y G NOMA Fe eR D6<4? Ox, atBit ANA)! Wig 2M CAE, ae. pail |  | | Book | | seen, not even in the heady days of Ballarat, California and the Yukon. Gold is being sought on every...C. Bagby US Geological Survey, Menlo Park, California, USA William Bagby received a Ph.D. in Earth Science...Science from the University of California, Santa Cruz, on petrogenetic research of Tertiary volcanic rocks...rocks in the Sierra Madre Occidental, Mexico. His mining industry experience includes porphyry copper exploration...Berger US Geological Survey, Spokane, Washington, USA Byron Berger has been involved in exploration for |  | | Journal (volume) | | DECEMBER 1913 Mining and 429 MARKET STREET Scientific Press SAN FRANCISCO, CALIFORNIA^ 1'^ h i* zcv...Ltd., company report Abosso mine. West Africa Acacia Mining Co., Colorado 270, Editorial. Accident...Co.'s mine, Arizona Accident Gold Mining Co., Subil mine, French Gulch, Rules, Copper California Accidents...Accidents, coal-mine in United States Compensation for Workingmen's compensation Acid mine water Acidity...Tramway, one-rope Tramway, Saline Valley Salt Co., California . . . . . . Aerolites Africa, copper In |  | | Journal (issue) | | FEDERATION OF MINERALOGICAL SOCIETIES Offlcet'I Mrs. G .E. Lee. President (NFMS) 704 S.W. 31st St., Pendleton...(MFMGS) 26120 Rouge Court Southfield. Ml 48075 CALIFORNIA FEDERATION OF MINERALOGICAL SOCIETIES Officer...Correspondence and requests for information to the California Federation shoulo be addressed to: Mrs. Juanlta...Gemac Corporation. 1797 Capri Ave.. Mentone. California 92359. SUBSCRIPTION RATES: $5 50 per year $10...MAILING OFFI CES. FIELD TRIPS The Renwick Uranium Mine by Gilbert A. Penny ......... ā¢ ........ ā¢ .... |  | | Journal (article/letter/editorial) | | Kochbulak Deposit (Uzbekistan) V. A. Kovalenker*, Yu. G. Safonov*, V. B. Naumov**, and V. L. Rusinov* * Institute...tellurium minerals, including Au and Ag tellurides. Roscoelite (a vanadium-bearing muscovite) occurs instead...with rich (bonanza) ores: Boulder County, Golden Sunlight, and Bessie G (United States). The Kochbulak goldātelluride...belt (Arapov, 1983). The unique Muruntau gold district lies in the western branch of this belt. The Kurama...Almalyk ore district and epithermal gold and uranium deposits of the Angren ore district. The geological |  | | Journal (issue) | | each Rhodium Finish 3 for $10.74 18x13mm No. 35-37-G $4.20 each Gold Electroplate 3 for $10.74 Prices...111 Callfor11la 4959 YORK BLVD. LOS ANGELES, CALIFORNIA 90042 2 - AUGUST 1976 Open Mon. thru Prl. 9..... 79 NOW WITH NOVA THE ALL DIAMOND Gem-Maker G E N 11 GENII IS COMPLETE-all you need for grinding...Exhibition Hall Seattle, W&1billft0n Denver, Colorado ELECTRONIC POWER. . Dial controlled rotary and...for :vour copy today. GEO-SONICS 102 Lincoln St. (G), New London, /owu 52645 IA ctivisinn ol <.eode lndu~trie |
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