 | Markowski, Agnès, Vallance, Jean, Chiaradia, Massimo, Fontboté, Lluìs (2006) Mineral zoning and gold occurrence in the Fortuna skarn mine, Nambija district, Ecuador. Mineralium Deposita, 41 (4) 301-321 doi:10.1007/s00126-006-0062-x | Journal (article/letter/editorial) | | occurrence in the Fortuna skarn mine, Nambija district, Ecuador Received: 24 February 2005 / Accepted:...located in the northern part of the Nambija gold district, southern Ecuador. It has been subdivided into...subdivided into a dominant brown garnet skarn, a distal green pyroxene– epidote skarn, and two quartz-rich...skarn types. The proximal massive brown garnet skarn zone is centered on two 060° trending faults in Mine...were observed. It grades into a distal green pyroxene–epidote skarn zone to the North (Cuerpo 3). Granditic |  | | Journal (article/letter/editorial) | | Ilvaite occurs in the Fortitude Au skarn deposit, Nevada, the first reported occurrence in a Au skarn deposit...Ilvaite has been discovered at Fortitude, Nevada, in the distal zone of the pyroxene-rich exoskarn accompanying...in the Battle Mountain mining district, Nevada (Fig. 1), is a gold-enriched zone within a much larger hydrothermal...COMMUNICATIONS Western USA 117°07´ N 117°08´ 625 0 N LEGEND I Nevada Amphibole-chlorite Fortitude...pyroxene (Hd30–60) with minor garnet. The most distal skarn is dominated by hedenbergitic-rich pyroxene |  | | Journal (article/letter/editorial) | | Geosciences, Universityof Arizona, Tucson, AZ 85 719, USA (Received September 1, 1991; revised and accepted...massive sulfide (VMS) deposits in the East Shasta district, but with no known deposits to the north. Least-altered...Geosciences, University of Arizona, Tucson, AZ 85719, USA. 0009-2541/92/$05.00 possible that the leaching...no unaffected rock persists. In the East Shasta District, northern California, U.S.A., Late Permian volcanic...systems associated with known VMS deposits in the district; and ( 3 ) to examine metal budgets. 2. Previous |  | | Journal (article/letter/editorial) | | Geology, v. 110, pp. 253–262 REPORTED SUPERGENE SPHALERITE RIMS AT THE CHUQUICAMATA PORPHYRY DEPOSIT (NORTHERN...CH 1205, Switzerland (Bernhard Dold Sustainable Mining Research and Consulting.EIRL), Casilla 28, San...Previous studies attributed a supergene origin to sphalerite rimming copper minerals occurring in Chuquicamata...99S1.01), covellite (CuS and Cu1.08S0.92), and sphalerite (up to 1.2 wt % Fe). Microscopic observations...electron microprobe analyses, suggest that all sphalerite in Chuquicamata is hypogene. A scenario, backed |  | Wang, Changming, Zhang, Da, Wu, Ganguo, Santosh, M., Zhang, Jing, Xu, Yigan, Zhang, Yaoyao (2014) Geological and isotopic evidence for magmatic-hydrothermal origin of the Ag–Pb–Zn deposits in the Lengshuikeng District, east-central China. Mineralium Deposita, 49 (6) 733-749 doi:10.1007/s00126-014-0521-8 | Journal (article/letter/editorial) | | origin of the Ag–Pb–Zn deposits in the Lengshuikeng District, east-central China Changming Wang & Da Zhang...Heidelberg 2014 Abstract The Lengshuikeng ore district in east-central China has an ore reserve of ∼43...characteristics, the mineralization in the Lengshuikeng ore district can be divided into porphyryhosted and stratabound...the proximal zone; sericitization, silicification, and carbonatization in the peripheral zone; and sericitization...sericitization and carbonatization in the distal zone. The stratabound mineralization occurs in volcanosedimentary |  | Shao, Yongjun, Tan, Huajie, Peng, Guangxiong, Zhang, Jiandong, Chen, Jianzhou, Chen, Qiaomei, Zhang, Yu (2019) Geology, Fluid Inclusions and Stable Isotopes of the Xialiugou Polymetallic Deposit in North Qilian, Northwest China: Constraints on its Metallogenesis. Minerals, 9 (8). 478pp. doi:10.3390/min9080478 | Journal (article/letter/editorial) | | mineralization is zoned with “black” orebodies (galena–sphalerite), which are stratigraphically above the “yellow”...lower zone, corresponding to the alteration assemblages of quartz–sericite in the ore-proximal zone and...and chlorite in the ore-distal zone. The Xialiugou mineralization can be divided into three stages: (1)...(chalcopyrite–tennantite–sphalerite); and (3) Stage III (galena–sphalerite). Fluid inclusions data indicate...sulfide unit to a footwall stockwork mineralization zone [3,4]; (3) extensive and intensive proximal alteration |  | | Journal (article/letter/editorial) | | igneous-metamorphic rocks. The primary ore minerals are galena, sphalerite, chalcopyrite, pyrite, arsenopyrite, magnetite...data indicate that Biga Pb-Zn skarn deposits and distal Pb-Zn skarn deposits throughout the world have...formed in the distal zones of plutons. Keywords: Biga Peninsula, Lead-Zinc Deposits, Distal Skarn, EPMA...deposits in the peninsula are base metals, and mining of Pb-Zn, Sb, and Au-Ag metals is ongoing. The...and Mn-Fe content of garnet, clinopyroxene, and sphalerite. Moreover, with the help of the data obtained |  | Vikentyev, I.V., Tyukova, E.E., Vikent'eva, O.V., Chugaev, A.V., Dubinina, E.O., Prokofiev, V.Yu., Murzin, V.V. (2019) Vorontsovka Carlin-style gold deposit in the North Urals: Mineralogy, fluid inclusion and isotope data for genetic model. Chemical Geology, 508. 144-166 doi:10.1016/j.chemgeo.2018.07.020 | Journal (article/letter/editorial) | | ABSTRACT The Vorontsovka gold deposit in the Tagil zone, North Urals, hosts 101 t Au, averaging 7 g/t Au...mineral district in the Krasnoturyinsk area, Ekaterinburg region, is situated RI to the Tagil zone restricted...Uralian Fault in the west (Fig. 1). The mineral district, including the Vorontsovka Au deposit, covers...2005; Puchkov, 2010; Yakubchuk, 2017), the Tagil zone incorporates fragments of an island arc, evolved...by islandarc volcanism that started in the Tagil zone at the end of the Ordovician (Tagil arc). Subduction- |  | | Book | | 310 Pillsbury Drive S. E. Minneapolis, MN 55455, USA Volumes 1 to 9 in this series appeared under the...are of considerable aid to the exploration and mining geologist in areas of known mineralization, but...advanced undergraduate and graduate levels, and to mining and exploration geologists. lowe no small debt...and to Peter Wyllie for initially suggesting the project and for encouragement during its evolution. Frederick.................. . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico .......................... |  | Zheng, Wenbao, Tang, Juxing, Zhong, Kanghui, Ying, Lijuan, Leng, Qiufeng, Ding, Shuai, Lin, Bin (2016) Geology of the Jiama porphyry copper–polymetallic system, Lhasa Region, China. Ore Geology Reviews, 74. 151-169 doi:10.1016/j.oregeorev.2015.11.024 | Journal (article/letter/editorial) | | performed by members of the Jiama Exploration Project Team over a AC period of 6 years. We propose...Cu–polymetallic, hornfels Cu–Mo, porphyry Mo ± Cu, and distal Au mineralization. The development of skarn Cu–polymetallic...Jiama deposit was controlled mainly by the contact zone between porphyries and marbles, an interlayer detachment...fracture system related to intrusions, and the distal Au mineralization resulted from late-stage hydrothermal...proximal skarn to the intermediate skarn to the distal skarn, the garnet/pyroxene ratio varies from >20:1 |  | | Report (volume) | | 5808 South Rapp St., Suite 209 Littleton, CO 80120 USA Telephone: (303) 797-0332 FAX: (303) 797-0417 Price... oh tee seareae 203 The Banska Stiavnica Ore District: Relationship between Metallogenetic Processes...Slovakia, and many other deposits (e.g. several mining districts in the Oas-Gutai Mtns., Tokaj Mtns.,...to rich mining cities whose splendor still lasts, and also supported the development of mining technologies...treatise on medieval mining methods by Agricola is based on his experience from these mining districts. In the |  | | Journal (article/letter/editorial) | | Mineralization in the McLarenDeposit, New World District,ParkCounty,Montana TODDW. JOHNSON ø ANDLAWRENCE...Au-Cu-Agskarnand replacementdepositsin the CookeCity, in Park County, Montana,and extends ø Presentaddress:NorandaExploration...xploration,Inc., P.O. Box 7176, Reno, Nevada 89510. 0361-0128/94/1591/969-25 $4.00 southward into northernWyoming...Leadandsilver-bearing ore wasfirstdiscovered in the New World district in 1869. Numerous small de- 9 69 970 JOHNSON...exploitation. of the Au, Cu, andAg productionwithin the district. the Como sediment-hostedAu-Cu-Ag deposit was |  | | Book | | A Comprehensive Example: The Cree de District, Colorado, USA 4.11. Summary 4.12. Recommended Reading...a generous grant toward the completion of this project. This book would not have been completed without...comprising >50% of the host rock Tabular An ore zone that is extensive in two dimensions, but has a restricted...Diamond in kimberlite pipes Footwall alteration zone of volcanic-hosted massive sulfide deposits (see...addition to improved techniques of exploration, mining, extraction, and management, by a better understanding |  | | Journal (article/letter/editorial) | | Byzantine times based on the existence of the old mining tools at Atud area (Klemm et al. 2001)], the Atud...and 1969 by the Egyptian Geological Survey and Mining Authorities (EGSMA) (Gabra 1986). EGSMA studied...workings in detail, including drilling, mapping, mining, and sampling mineralized and barren quartz veins...deposit has 1600 tons of waste dump material from the mining of the Pharaonic age with 12.4 g/t of gold. Details...magmatic activities occurred at the subduction-related zone (Gass 1977; El-Gaby et al. 1988). A compressional |  | | Journal (article/letter/editorial) | | alteration of lode-gold deposits in the Charters Towers district, north Queensland: implications for the conditions...was introduced during stage III, after earlier sphalerite and coincident with galena and chalcopyrite....pyrite that are spatially associated with galena, sphalerite or chalcopyrite. Lowgrade or barren vein sections...Ryde, NSW 2109, Australia sericite–ankerite and distal epidote–chlorite–hematite assemblages that may...widely spaced drill core samples from the main mining area at Charters Towers (5 km by 3 km). The present |  | | Journal (article/letter/editorial) | | SÏtohl á V. KonecÏny The Banska Stiavnica ore district: relationship between metallogenetic processes...Abstract The Banska Stiavnica ore district is in the central zone of the largest stratovolcano in the...have been identi®ed in the Banska Stiavnica ore district: 1. Quartz-pyrophyllite-pyrite high-sulphidation... Mineral paragenesis is simple, with leading sphalerite and galena and minor chalcopyrite and pyrite...around the granodiorite intrusion. The mineralized zone is represented by accumulations of chalcopyrite |  | Catchpole, H., Kouzmanov, K., Putlitz, B., Seo, J. H., Fontbote, L. (2015) Zoned Base Metal Mineralization in a Porphyry System: Origin and Evolution of Mineralizing Fluids in the Morococha District, Peru. Economic Geology, 110 (1) 39-71 doi:10.2113/econgeo.110.1.39 | Journal (article/letter/editorial) | | Evolution of Mineralizing Fluids in the Morococha District, Peru Honza Catchpole,1,†,* Kalin Kouzmanov,1...polymetallic mineralization) in the Morococha district, central Peru, is part of a large magmatic-hydrothermal...Toromocho porphyry Cu-Mo deposit in the center of the district and display a typical concentric base metal zonation...tennantite-tetrahedrite, chalcopyrite, enargite, sphalerite, and galena. Upon cooling below 270°C, the fluids...constitute economically important Zn, Pb, Ag, and Cu mining districts that are centered on porphyry Cu ± Au |  | | Journal (article/letter/editorial) | | type mineralization along the NE–SW fault gouge zone at the lower boundary of the Sakarkaya and Düztarla...± pyrite (i.e., zone-1) and calcite–epidote–albite ± chlorite ± sericite (i.e., zone-2), were observed...observed within the central ore mineral zone at the mining site. Different mineralization assemblages were...chalcopyrite, galena, pyrite, and sphalerite within alteration zone-1, and the oxidation/supergene mineralization...mass balance calculations show that the samples of zone-1 show an increase in SiO2 , Fe2 O3 , K2 O, and |  | | Book | | individual deposits or districts. (in brackets country, district, deposit reviewed): Adamek P. (Scandinavia), Adams...Africa, Namibia), Chenoweth W. (Colorado Plateau, USA), Coste A. (Limousin, France), Cuney M. (granites...Grauch R (western USA), Gautier A. (breccia pipe deposits, USA), Halladay Ch.R (eastern USA), Harshman E.N...N. (Wyoming Basins, USA), Hruby J. (CSFR), Kolb S. (Bavaria, W-Germany), Krol W. (Eastern Europe), Matos...(general), Ramdohr P. (mineralogy, metallogenesis), Robertson J.A. (Blind River-Elliot Lake, Canada), Ruhrmann |  | | Journal (article/letter/editorial) | | hydrothermal pyrite in gold deposits of the Kalgoorlie district, Western Australia Marcelo Godefroy-Rodríguez...Springer Nature 2020 Abstract The Kalgoorlie district in the Archean Yilgarn Craton of Western Australia...world-class gold deposits: the giant Golden Mile shear-zone system and the Mt Charlotte quartz-vein stockworks...al. 2017). The main deposits in the Kalgoorlie district are the Golden Mile and Mount Charlotte. The Golden...In Fig. 1 Geological map of the Kalgoorlie mining district (modified after Bateman et al. 2001). The sample |  | | Journal (article/letter/editorial) | | constrained from the compositions of sphalerite-kësterite and sphalerite-ferrokësterite pairs at 287 ± 25...orebodies which can be considered altogether as distal to the fluid source, i.e., a granite to granodiorite-diorite... and Pb-Zn-B skarn ores are placed proximal to distal relative to the inferred intrusive fluid source...authors [3,7–10]. With a presumed starting point of mining activity during the Roman Dacia period (2nd-3rd... W) deep-proximal zone; ii) Cu (-Bi, W) proximal zone; and iii) Pb-Zn distal zone. Individual orebodies |  | | Journal (article/letter/editorial) | | veins along a NNW- trending brittle-ductile shear zone cutting through successions of pelitic schists,...comprises three distinct zones, namely distal chlorite-calcite zone (chloritezcalcite¡biotite¡pyrite¡ sericite¡epidote)...sericite-chlorite zone (sericitezchloritezpyrite¡biotite), and a proximal pyrite-sericite zone (quartzzpyr...the unaltered metasediments. The pyrite-sericite zone contains the highest gold grades, especially in...calculations have revealed that the pyrite-sericite zone experienced significant metasomatic changes relative |  | Su, Qiangwei, Mao, Jingwen, Sun, Jia, Zhao, Linghao, Xu, Shengfa (2020) Geochemistry and Origin of Scheelites from the Xiaoyao Tungsten Skarn Deposit in the Jiangnan Tungsten Belt, SE China. Minerals, 10 (3) 271 doi:10.3390/min10030271 | Journal (article/letter/editorial) | | with garnet in the proximal zone (Sch1a) and with pyroxene in the distal zone (Sch1b), (2) scheelite replaced...K-feldspar. The granite in the northern part of of the mining area was dated to 130–124 Ma by LA–ICP–MS zircon...zircon U–Pb methods [29]. This granite the mining area was dated to 130–124 Ma by LA–ICP–MS zircon U–Pb methods...drillincore the skarn has ahas pyroxene-dominated distal distal a garnet-dominated proximal shallow to deep...coarse-grained green, coarse-grained pyroxene minerals. The distal dominated by darkby green, pyroxene crystalscrystals |  | | Book | | orebody has been in production since 1977. Pre-mining reserves were 69,900.000 tonnes at a grade of 10...2.63% Pb. Employing some 1,060 persons and now mining at a rate of 2,500.000 tonnes per annum, Tara Mines...Poustie 89 The Lisglassan-Tullybuck deposit, County Monaghan: Sb-As-Au vein mineraliza tion in Lower...controls to mineralization in the Silvermines area, County Tipperary, Ireland. C. J. Andrew 377 A review..... 509 A review of vein mineralization in SW County Cork, Ireland. T. A. Reilly 513 GENETIC MODELS |  | Zhang, Liang, Yang, Li-Qiang, Weinberg, Roberto F., Groves, David I., Wang, Zhong-Liang, Li, Guang-Wei, Liu, Yue, Zhang, Chao, Wang, Zhao-Kun (2019) Anatomy of a world-class epizonal orogenic-gold system: A holistic thermochronological analysis of the Xincheng gold deposit, Jiaodong Peninsula, eastern China. Gondwana Research, 70. 50-70 doi:10.1016/j.gr.2018.12.013 | Journal (article/letter/editorial) | | University of Melbourne, Vic 3010, Australia Gold Mining Stock Co., Ltd., Laizhou 261400, China CE f Shandong...University of Geosciences 29# Xue-Yuan Road, Haidian District, Beijing 100083, China Phone: (+86-10) 8232 1937...hangingwall of the Linglong detachment fault or distal to the fault in the footwall, comprise the Precambrian...by a 030–040° trending SE-dipping ductile shear-zone with mylonitic–ultramylonitic rocks overprinted...Similar to the Jiaojia Fault, the Sanshandao Fault Zone is also a major regional structure with intense |
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