Mineral resources associated with black shales may be placed in two broad groups; i) Black shale hosted mineral resources uranium, copper, uranium emeralds, barites etc. ii) Black shales as indicators of occurrences of mineral resources black shale association with rock suites as guide to Phosphogenesis (Phosphorite deposits)
Get PriceWhile doing my due diligence I learned that Gold in black shales has become one of the most important deposit types for Gold exploration in northern China. The Mystery of Black Shale! Although Gold deposits in black shales have been studied for several decades, their genesis and mineralization mechanism are still a matter of controversy.
Get PriceNov 28, 2017· Kenadyr Acquires Option on New Mineral Licenses: Targeting Large Black Shale Hosted Gold Deposits ... Upper Proterozoic black shales found …
Get PriceThe MoNi sulfiderich black shale units are probably produced by winnowing of subaquatic hardground deposited under euxinic conditions. The same stratigraphic level also hosts anoxic/suboxic Vrich black shale (V in illite) and huge phosphorite deposits in oxic/suboxic settings, bedded barite, as well as 10s of meterthick sapropelic alginite ...
Get PriceAuAgSeTe mineral and geochemical systems in black shalehosted deposits (Uzbekistan) ... prove the importance of those elements for the formation of the deposits in the black shales; and also to show the wide occurrence of Te and Se in ores at the submicroscopic level. ... Koneev , Turesebekov , Ignatikov , Vasilevsky ...
Get PriceBlack shales were deposited in the continental margin rifts when the North China Craton underwent regional extension and breakup events during Mesoproterozoic era. The rock series, composed of clastic rocks, carbonate rocks, and minor volcanic rocks, are rich in …
Get PriceAlso known as shalehosted stratiform sulphide deposits ENVIRONMENT: Form in reducing marine basin environments associated with finegrained carbonaceous rocks. Environments include ... Black shales are very conductive and will mask less conductive sphalerite. Mag: Pyrrhotiterich deposits will exhibit a positive mag anomaly.
Get PriceSynsedimentary to Early Diagenetic Gold in Black ShaleHosted Pyrite Nodules at the Golden Mile Deposit, Kalgoorlie, Western Australia Jeffrey A. Steadman. Jeffrey A. Steadman. 1. CODES (ARC Centre of Excellence in Ore Deposits), School of Physical Sciences, University of Tasmania, Private Bag 79, Hobart, Tasmania 7001 ...
Get PriceAnja Birte Frank defends her thesis, Chromium Isotope Variations in Black Shales Evaluating the Applicability of Chromium Stable Isotope signatures of Ancient Black Shales as a Paleoredox Archive Supervisor: Professor Robert Frei, IGN Assessment Committee: Professor Caroline L. Peacock, University of Leeds – UK Professor Bernd Lehmann, Technical University of Clausthal – Germany …
Get PriceBanded iron formations (BIF) are predominantly Precambrian sedimentary rocks composed of alternating layers of ironrich minerals (commonly hematite and magnetite, but also siderite, chlorite, and grunerite) and silicarich minerals (, quartz or chert) in which the Fe content of the entire rock is at least 15 wt. %. Although typically thought of as strictly Fe resources, such as in the ...
Get PriceAt Pine Pass, vanadium is hosted within the phosphatic black shales of the Toad Formation with trenching returning % V2O5 over 130 m The Silver Sands Vanadium Property hosts analogous/identical lithologies to those at Pine pass, including the Toad Formation
Get PriceThe Talvivaara black shalehosted NiZnCuCo deposit occurs in eastern Finland (Fig. ) and is currently the largest sulfidic Ni resource under exploitation in Western is a lowgrade ( wt% Ni, wt% Zn, wt% Cu, wt% Co, wt% U at Ni cutoff of wt%) but very large deposit with total ore resources (measured + indicated + inferred) reaching Gt ...
Get PriceNov 28, 2017· Complementing this, the company holds an unrivaled ground position covering the bulk of the prospective Black Shale Hosted Gold ground in the Kyrgyz Republic. Brian Lueck, P. Geo, a …
Get PriceClay Lake gold target encompasses all the above points. After Bortnikov (1995) – Mineralogy, geochemistry, and origin of the black shale hosted gold deposits of the former Soviet Union in Mineral Deposits: From their Origin to their Environmental Impacts : pp 935 937. Gold potential at Clay Lake
Get PriceA shalehosted Cr isotope record of low atmospheric oxygen during the Proterozoic Devon B. Cole1*, Christopher T. Reinhard2, Xiangli Wang1, Bleuenn Gueguen1, Galen P. Halverson3, Timothy Gibson 3, ... from black shales—common throughout Earth
Get PriceThe black shalehosted antimony mineralizations are structurally situated at the flanks of major anticlinal zones, predominantly in close vicinity to significant lithological contrasts between siliceous–bituminous limestones and black shales. The antimony mineralizations in the Arnsberg area are hosted by the upper black shales and the
Get PriceAs in sedimenthosted orogenic and Carlintype gold deposits and develops a corresponding genetic model. In this twostage basinscale model, gold and arsenic are introduced early into black shale and turbidite basins during sedimentation and diagenesis (stage 1) and concentrated to ore grades by later hydrothermal, structural,
Get Pricehosted by pale gray to black shale, but some are found in sandstone, siltstone, limestone, silty dolomite, laminated carbonate units (sabkha origin) and quartzites. Favourable horizons contain reactive organic matter or sulphur. Algal mats, mudcracks and scourandfill structures
Get PriceWarner, , 1998, Geochemical characterization of sedimentary organic matter and hydrothermal petroleum in the black shalehosted ZnPb deposit at Red Dog Mine, western Brooks Range, Alaska: Indiana University, Bloomington, dissertation, 218 p. Abstract
Get PriceSteadman JA, Large RR, Meffre S, Olin PH, Danyushevsky LV, et al., 'Synsedimentary to early diagenetic gold in black shalehosted pyrite nodules at the Golden Mile Deposit, Kalgoorlie, Western Australia', Economic Geology, 110, (5) pp. 11571191. ISSN 03610128 (2015) [Refereed Article]
Get PriceMar 01, 2003· Veintype and beddingconcordant mesothermal (180–410 °C) stibnite–sulphosalt mineralization at Arnsberg, NE Rhenish Massif, Germany, is hosted by Carboniferous pyriterich black shales and siliceous limestones. A detailed sulphur isotope study of the stibnite–sulphosalt mineralization and pyrite from a variety of regional hostrock lithologies has been carried out using an in situ ...
Get PriceRequest PDF on ResearchGate | On Jan 31, 2004, Delian Fan and others published The Xikuangshan Sb deposit hosted by the Upper Devonian black shale series, Hunan, China
Get PriceIdentification of black shalehosted critical element deposits in the (initial focus on the Heath Formation metalliferous oil shales in Montana); and; Evaluation of processes that form metalenriched black shale deposits. Return to Mineral Resources Program …
Get PriceMETALLIFEROUS BLACK SHALES AND RELATED ORE DEPOSITS PROCEEDINGS, 1989 UNITED STATES WORKING GROUP MEETING, INTERNATIONAL GEOLOGICAL CORRELATION PROGRAM PROJECT 254 Geochemistry of the Ordovi<:ian HighCalcium Black Shales Hosting Major ~cold Deposits of the Getchell Trend in Nevada By E. I. Bloomstein 1 and Clark 1
Get PriceNov 20, 2009· In contrast, sulfidic black shales underlying komatiitehosted FeNi sulfide deposits have near 0‰ or positive Δ 33 S values, as high as +‰, within the range of values for disseminated pyrites in finegrained siliciclastic sediments of this age (14, 15, 19).
Get PriceIt was very unexpected and a big bonus to intersect zinc sulphides in black shales so close to surface. High grade zinc was discovered on the Spur Zinc Project almost 30 years ago. This new discovery of zinc sulphides in black shales completely opens up new exploration possibilities for a much larger zinc mineralizing system.
Get PriceVanadiumrich metalliferous black shales are found mainly in late Proterozoic and Phanerozoic marine successions. ... and it will be the first primary shalehosted producer of vanadium in the US ...
Get PriceBirch Mountains polymetallic black shale. Sedimenthosted copper . Sedimenthosted copper occurrences in Alberta are stratabound ores (predominantly silverbearing chalcocite, chalcopyrite, and bornite) accompanied by iron sulphides, occurring as disseminations in shallow marine epicontinental sandstone and siltstone.
Get Pricedata regarding metalliferous blackshale formations and related ore deposits, (2) evaluate the role of depositional, diagenetic, volcanic, magmatic, metamorphic, and tectonic processes in the origin of metalliferous black shales and related ore deposits, (3) investigate the …
Get PriceNov 27, 2017· Complementing this, the company holds an unrivaled ground position covering the bulk of the prospective Black Shale Hosted Gold ground in the Kyrgyz Republic. Brian Lueck, P. Geo, a director of the Kenadyr and a qualified person as defined by National Instrument 43101, has reviewed and approved the technical information in this news release.
Get PriceThis blackshalehosted sphalerite is below secondary zinc oxide mineralization within a fault zone (Figures 2 and 3 below). Figures 2 and 3 – Blackshalehosted zinc sulphides intersected in drill hole SRDD2018004 Brief Exploration History In 1990, Western Mining, while RC drilling for gold, stumbled over what became the RH Main
Get PriceSuch techniques, hosted by Devonian black shales of Guangxi, China, which partly depend upon the presence or absence which are second in production only to the Malaysian of graphite formed from organic matter, may be placer Sn deposits (Laznicka, 1999).
Get Priceidentified from the socalled noble metal rich black shales within the Cu–Ag shales of the Kupferschiefer type (Kucha 1975, 1981, 1982; Piestrzynski et al. 1996; Pieczonka and Piestrzynski 1997 and others), in gold ores hosted by black shales at the Sukhoy Log deposit, Russia (Distler et al. 1998), metalliferous black shales of the Kursk mag
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