 | | Report (volume) | | DIRECTOR BuiiIiETIN 574 MINING DISTRICTS OF THE DILLON QUADRANGLE, MONTANA AND ADJACENT AREAS BY ALEXANDER................................................. Mining districts...................................................................................... Mining development. ...................... .. - - ' -..................................... 18 Placer mining....... ~................................................................ 20 Present status of mining .....:........................................ |  | | Report (issue) | | Stratigraphic Studies in Southwestern Montana and Adj cent Idaho-Lower Tertiary Anaconda Conglomerate...contacts . Stratigraphic Studies in Southwestern · Montana and Adjacent Idaho-Lower Tertiary Anaconda Conglomerate...Brittle-Ductile Extension and Uplift in Southwestern Montana By J. Michael O'Neill Chapter B Alluvial Facies...Formation, East-Central Idaho and Southwestern Montana By Russell G. Tysdal, David A. Lindsey, Karen I..., 2005, Stratigraphic studies in southwestern Montana and adjacent Idaho-Lower Tertiary Anaconda Conglomerate |  | | Journal (article/letter/editorial) | | Victoria A. H. Green 1, T. H. Donnelly 2, F. M. Jahnke 3, and Reid R. Keays 3 1 Texasgulf Inc., P.O. Box...gold were deposited in the veins after ankerite, sericite and albite, while quartz deposition continued...end of vein formation. INTRODUCTION A century of mining in the Woods Point dyke swarm (Fig. I) yielded...A1 dyke near Gaffney's Creek (Fig. i) since gold mining operations permitted extensive underground access...accessible only at the surface and via abandonned mining adits. 0026-4598/82/0017/0175/$03.60 176 _A |  | | Book | | Bagby US Geological Survey, Menlo Park, California, USA William Bagby received a Ph.D. in Earth Science from...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...Manchester in 1973 (Ph.D.) and was then employed as a mine and exploration geologist by Falcon Mines Ltd in...Zimbabwe). In 1977 he moved to the Institute of Mining Research at the University of Rhodesia (Zimbabwe) |  | | Journal (article/letter/editorial) | | geological boundary ---- major lineament 4~ sampled mine site dyke,vein or ~'~"~" alteration zone 1 km ...early quartz-sericite-albite-pyrite assemblage affected by later generations of quartz, sericite and, in some...are common an indicative of an open-space The old mine workings, exploration pits and prospects are development...Samples of mineralization from the Major's Creek district were collected from mullock dumps at the following...vein material and openlocalities (Fig. 2): Banner Mine, Camages Reef, Dargues space textures are absent |  | Haruna, Makoto, Hanamuro, Takahiro, Uyeda, Kaoru, Fujimaki, Hirokazu, Ohmoto, Hiroshi (2003) Chemical, Isotopic, and Fluid Inclusion Evidence for the Hydrothermal Alteration of the Footwall Rocks of the BIF-Hosted Iron Ore Deposits in the Hamersley District, Western Australia. Resource Geology, 53 (2) 75-88 doi:10.1111/j.1751-3928.2003.tb00160.x | Journal (article/letter/editorial) | | BIF-Hosted Iron Ore Deposits in the Hamersley District, Western Australia Makoto HARUNA1, Takahiro HANAMURO*...the positive correlation with calculated quartz/sericite ratios of the shale samples. This suggests that...ores In the Hamersley district of Western Australia, one of the world biggest mining districts of iron containing...been constructed for the rocks in the Hamersley district based mostly on the SHRIMP zircon U-Pb method...data with the ages of other formations in the district will allow us to understand the timing of the |  | | 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 ...------------------------------------Location and geography of district -----------History --------------------------...--------------Falcon mine -------------------------------Aztec mine ---------------------------------Nora Lily mine --...--------------Forest Payroll mine -------------------------Iron Clad (Silver Clad) mine ----------------III |  | | Journal (article/letter/editorial) | | effect’., which creates difficulty in prediction and mining. Orogenic lode gold is well documented and is the...mined from quartz mines has come from alluvial mining ŽFinlay and Douglas, 1992.. In numerous other goldfields...known prospects and in optimising exist- 115 ing mining operations in Phanerozoic fold belts worldwide...visible gold. Mining of the wallrock in the 1800s and early 1900s, when most gold mining was undertaken...2000a.. Furthermore, several current and recent mining operations in central Victoria convincingly demonstrate |  | Jowitt, S. M., Keays, R. R., Jackson, P. G., Hoggart, C. R., Green, A. H. (2012) Mineralogical and Geochemical Controls on the Formation of the Woods Point Dike Swarm, Victoria, Australia: Evidence from the Morning Star Dike and Implications for Sourcing of Au Within Orogenic Gold Systems. Economic Geology, 107 (2) 251-273 doi:10.2113/econgeo.107.2.251 | Journal (article/letter/editorial) | | system, for example within the Thomson River Copper Mine dike. Mass balance calculations undertaken suggest...Tubal Cain Walhalla Sale Thomson River Copper Mine FIG. 1. Location map showing the location of the...Morning Star and ultramafic Thomson River Copper Mine dikes; the stars mark the location of gold deposits...Cu-Ni mineralization (e.g., the Thomson River Copper Mine, Keays and Kirkland, 1972). The Au mineralizing...Thomson River dike, host to the Thomson River Copper Mine (Keays and Kirkland, 1972). Minor quantities of |  | | Journal (issue) | | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur...the “famous locality” series: the Home Sweet Home mine and Mount Antero. A fine mineralogical study of...you belong to, and where you come from. American mining schools and professional organizations have long... centering on some of the nostalgic aspects of mining in Arizona and beautifully illustrated with paintings...“Missing and presumed lost” by the wellknown lost-mine author Kearney Egerton; “El Dorado’s children” by |  | | Report (volume) | | so successful. Allis-Chalmers Manufacturing Co. Mining Machinery Dept. OFFICES For Canadian MILWAUKEE...Canada THE MINES HANDBOOK Meeting tbe Needs of Mine and Smelter Hundreds of plants on both American...service from Superior Jaw Crusher Worthington mining equipment the from the standpoint of first cost...most wear, Worthington meets the needs of the mining industries with a complete line of products, from...(all types) Crushers Crushing Rolls NEW YORK Mine Pumps Oil Engines Sampling Machinery Screens Stamp |  | | Book | | Phosphoria Formation: From Deposition to the Post-Mining Environment Handbook of Exploration and Environmental...Phosphoria Formation: From Deposition to the Post-Mining Environment H A N D B O O K OF E X P L O R A...PHOSPHORIA FORMATION: FROM DEPOSITION TO THE POST-MINING ENVIRONMENT Handbook of Exploration and Environmental...the Post-Mining Environment Edited by JAMES R. HEIN US Geological Survey Menlo Park, CA, USA 2004 ELSEVIER...Support' and then 'Obtaining Permissions'. In the USA, users may clear permissions and make payments through |  | | Report (volume) | | California. THE MINES HANDBOOK, 1922 MACHINERY FOR MINE • MILL SMELTER Embodying recent developments...Hydraulic TurbinpM MILWAUKEE, Metallurgical Machinery Mining Machinery Perforated Oil l-:imini-- Metals I'liiiiliini:...are getting the most in service from Worthington mining equipment — :the most from the standpoint of first...power consumption. Worthington meets needs of the mining industries with a complete line of products, from...Compressor NEW YORK Crushing Rolls Air Compressors Mine Pumps Ball Mills Blast Furnaces Oil Engines Screens |  | Wang, Cheng, Shao, Yong-jun, Evans, Noreen J., Li, Huan, Zhou, Hao-di, Huang, Kuan-xin, Liu, Zhong-fa, Chen, Yao, Lai, Chunkit, Liu, Qing-quan (2020) Genesis of Zixi gold deposit in Xuefengshan, Jiangnan Orogen (South China): Age, geology and isotopic constraints. Ore Geology Reviews, 117. 103301 doi:10.1016/j.oregeorev.2019.103301 | Journal (article/letter/editorial) | | Ore-related alteration includes silicic, 24 carbonate, sericite, and chlorite. Based on vein crosscutting relationships...comprises 170 grayish-green, banded, silty (sericite) slate interlayered with argillaceous slate. ...alteration styles include silicic, carbonate, sericite, dolomite, kaolinite, chlorite, and 188 pyrophyllite...calcite), sericite and chlorite. Wallrock 205 alteration styles include silicic, sericite, carbonate...211 are characterized by straight veins with sericite alteration halos. Stage 2 polymetallic–native |  | | Journal (article/letter/editorial) | | SanyruntauDaugyztau zone Jiaoding peninsula, Judong district and Inner Mongolia Homestake Nova Lima, Sabara...Slave provinces, Canada Zimbabwe craton Renco mine Hollinger-McIntype, Dome, Pamour, Macassa, Giant...province Yana-Yolyma, Northeast Russia Craton/district Age of host terranes1 (Ma) Age of veining (Ma)...facies resulting in the formation of metamorphic sericite, with minor chlorite; the preferred dimensional...axial surface traces Anticlinal axial surface traces Mine City 0 400 km Sta te o Cambrian greenstone. |  | | Journal (article/letter/editorial) | | Irvine T. N. lrving A. J. Jacobs L. Jacobsen S. B. Jahnke R. A. Jarosewich E. Jenkins D. M. Jenkins W. J... Moldowan J. M. Molini-Velsko C. Moniot R. K. Montana A. L. Moore P. B. Moore W. S. Mopper K. Morel F...ex~~rnent~ study of Nb and Ta pa~itioning between Z-rich mine& silicate liquids at high pressure and temperature...South Platte gmnitepegmatite system, Jefferson County, Colorado 455 C. K. SNARER,J. J. PAPIKEand J. C...chemistry in hematite and goethite from 623 the Apex Mine, Utah, and some new data on germanium in aqueous |  | Ashley, P.M., Cook, N.D.J., Hill, R.L., Kent, A.J.R. (1994) Shoshonitic lamprophyre dykes and their relation to mesothermal AuSb veins at Hillgrove, New South Wales, Australia. Lithos, 32 (3) 249-272 doi:10.1016/0024-4937(94)90043-4 | Journal (article/letter/editorial) | | a n y authors (e.g. Mc*Present address: Bendigo Mining N.L., P.O. Box 2113, Bendigo Mail Centre, Victoria...structures opening in between the bounding faults as a district-scale dilational fault zone (Fig. 1B; cf. Sibson...metasedimentary rocks. Alteration minerals include sericite, carbonate, quartz and minor arsenopyrite, pyrite...in the EleanoraGaribaldi mine and a lode structure in the Proprietary mine was accompanied by a dyke...those from quartz- and stibnite-rich lodes, (2) dark, medium grained, ovoid ultramafic inclusions (with |  | Bierlein, F.P, Fuller, T, Stüwe, K, Arne, D.C, Keays, R.R (1998) Wallrock alteration associated with turbidite-hosted gold deposits. Examples from the Palaeozoic Lachlan Fold Belt in central Victoria, Australia. Ore Geology Reviews, 13 (1) 345-380 doi:10.1016/s0169-1368(97)00026-7 | Journal (article/letter/editorial) | | Goldfield ŽNew Zealand., Salsigne ŽFrance., Cariboo district ŽBC, Canada., Muruntau ŽUzbekistan., Sabie–Pilgrim’s...assemblage consists of quartz, ferroan dolomite, sericite, pyrite, arsenopyrite and Cr-mica. This alteration...alteration ŽSteed and Morris, 1986.. Carbonate– sericite alteration envelopes around auriferous quartz...widths of 0.9 to 3.5 m and consist of calcite, sericite, pyrite, arsenopyrite and kaolinite. Kontak F...halo with any accuracy. The geometry of the reefs, mine-specific problems Ži.e. common absence of extensive |  | | Journal (article/letter/editorial) | | alteration of the host rocks includes arsenopyrite, sericite, chlorite, pyrite, ankerite and (in the west of...the BBZ—the Wattle Gully mine of the Castlemaine goldfield, the Maxwells mine of the Inglewood goldfield...goldfield, and the New Cambrian mine of the Tarnagulla goldfield and—in the MZ—the Bailieston deposit of the...goldfield and the Brunswick mine of the Costerfield goldfield. The Nagambie mine of the "Nagambie goldfield"...west-dipping fault. FIG. 2. Cross-section of the Maxwells Mine, Inglewood. The structure is interpreted on the |  | Fang, Xiang, Tang, Juxing, Beaudoin, Georges, Song, Yang, Chen, Yuchuan (2020) Geology, mineralogy and geochemistry of the Shangxu orogenic gold deposit, central Tibet, China: Implications for mineral exploration. Ore Geology Reviews, 120. 103440 doi:10.1016/j.oregeorev.2020.103440 | Journal (article/letter/editorial) | | Tibet, numerous placer gold occurrences and old mining sites occur along the Bangong-Nujiang suture zone...which crops out in the northern part of the ore district and consist of quartz sandstone, slate and interbedded...facies, located about 30 km to the south of the ore district, consisting of sandstone, conglomerate, and interlayered...porphyry copper mineralization in the Duolong district (Fang et al., 2015; Yang et al., 2015; Tang et...leading to a color change of wall rocks from black or dark grey to pale grey or greenish grey. 4.1. Muscovite |  | | Journal (article/letter/editorial) | | University of Florida, Gainesville, Florida 32611, USA plutons. This separation of ages is incompatible...locations (based on a section provided by Bendigo Mining NL) 4-cm-wide sub-horizontal pink albite±gold±quartz...muscovite ¯akes, metamorphic illite, and hydrothermal sericite (Foster et al. 1998; Bierlein et al. 1999a, 1999b)...temperature for biotite (300 °C) and ®negrained sericite (270 °C for a cooling rate of 10 °C/million years;...to have aected argon retention in ®negrained sericite unless accompanied by the introduction of new |  | | Journal (article/letter/editorial) | | incorporated, thus preventing spinel from having an overly dark color. Keywords: gemstones, spinel, cobalt, Baffin...of gem quality due to its typically unattractive dark color (e.g., Van Velthuizen 1993, Belley et al....contiguous eluvial and alluvial deposits in the Luc Yen District, Vietnam (including cobalt-blue spinel; Chauviré...occurrence Soper Lake camp marble Soper Lake mica mine Qila occurrence Trailside occurrence Waddell Bay...rock contain over 30 vol.% phlogopite. Euhedral dark blue Downloaded from https://pubs.geoscienceworld |  | Ramsay, W.R.H, Bierlein, F.P, Arne, D.C, VandenBerg, A.H.M (1998) Turbidite-hosted gold deposits of Central Victoria, Australia: their regional setting, mineralising styles, and some genetic constraints. Ore Geology Reviews, 13 (1) 131-151 doi:10.1016/s0169-1368(97)00016-4 | Journal (article/letter/editorial) | | deposits, both of deep and shallow lead origin. Eleven mining centres each produced over 30 tonnes of gold with...deposition Žbased on evidence from Wattle Gully mine. was in the order of 7 km and isotopic data suggest...discoveries of 1851 ŽRamsay and Willman, 1988.. Eleven mining centres have each produced over 30 tonnes, of which...major producer ŽFig. 2.. In addition four of these mining centres ŽCreswick, Rutherglen–Chiltern, Beechworth...schistose metabasites, meta-volcaniclastics, and sericite schists. The metabasites are carbonatised, chloritised |  | | Journal (article/letter/editorial) | | Fisheries Management, P.O. Box 115, Neah Bay, WA 98357, USA (gaoy@olypen.com) The study of stable oxygen and...TANNENBAUM4 AND DANIEL JARVIE5 1 USGS, Denver, CO 80225, USA (ronhill@usgs.gov) 2 Department of Earth and Space...University of California, Los Angeles, CA 90024, USA (irkaplan@ucla.edu) 3 Department of Organic Chemistry...5 Humble Geochemical Services, Humble, TX 77338, USA (danjarvie@humble-inc.com) The prevailing hypothesis...University of California, Riverside, CA, 91521, USA (martink@mail.ucr.edu) Previous work has shown a |  | Bierlein, F. P., Arne, D. C., McKnight, S., Lu, J., Reeves, S., Besanko, J., Marek, J., Cooke, D. (2000) Wall-Rock Petrology and Geochemistry in Alteration Halos Associated with Mesothermal Gold Mineralization, Central Victoria, Australia. Economic Geology, 95 (2) 283-311 doi:10.2113/gsecongeo.95.2.283 | Journal (article/letter/editorial) | | Stawell, Costerfield, Tarnagulla (New Cambrian mine), Wattle Gully, and Inglewood (Gao and Kwak, 1995a...metamorphism (Bierlein et al., 1997, 1999). Present-day mining of the gold field by both surface and underground...fine-grained groundmass matrix consists of quartz, sericite, chlorite, and clays in variable proportions....auriferous structures and is in clear contrast to dark red to brown-colored units farther away from the...within the rounded Mg-rich core of the porphyroblast (dark gray). The core is rimmed by an Fe-rich (light gray) |
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