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5X series centrifugal impact crusher

5X sand making machine is a new generation of sand making machine developed with the aim of improving energy utilization, reducing wear rate, prolonging maintenance cycle, reducing maintenance time, improving crushing efficiency and control level. , The product has excellent grain shape, convenient maintenance and repair, wide application and other characteristics, to meet the needs of modern sand and gravel production.

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C6X series jaw crusher

The C6X series jaw crusher is produced by the well-known rock and mineral processing equipment manufacturer Liming Heavy Industry, which can coarsely and mediumly crush hard and highly abrasive various ores and rocks. It has a special design of detachable welding-free structure frame, optimized cavity structure, double wedge adjustment device, selected raw materials and components, elastic limit shock absorption device, integrated motor base, etc., with high crushing efficiency and investment Low cost, long service life and stability.

gold ore in carbonaceous black shales -

black carbonaceous shale and gold mining. black carbonaceous shale and gold mining Gold mineralization in Proterozoic black shales: Example,, Example from the Haoyaoerhudong gold, involved in black shale gold deposits is an, The risks associated with mines in . Get Price Natural Gold Ore

The Geology, Formation Conditions, and Ore Potential

The Early–Middle Carboniferous Turgoyak granite pluton and Middle Riphean Urenga and Upper Riphean Uitash formations are described. In the Late Vendian, both formations underwent regional metamorphism of the cummingtonite–amphibolite facies at 550–595°C and 250–440 MPa and, locally, diaphthoresis at 520–530°C and 130–170 MPa. During origination of the Turgoyak pluton at 770–810 ...

Noble metals in the insoluble carbonaceous

The way of extraction of insoluble carbonaceous substance (ICS) from black shales and technique of determination of noble metals (NM) in it by direct arc atomic emission analysis (AEA) were developed. The first results are reported on the determination of mineral-bound noble metals in ICS concentrates, which were extracted from the rocks and ores of the Sukhoi Log, Vernyi, Vasil’evskoe ...

Gold mineralization in Proterozoic black shales:

Black shales are a common lithofacies throughout the geologic record (Wignall, 1994). They consist of original muddy deposits rich in organic matter and sulfides. Black shales are favorable host rocks for many types of ore deposits (Grauch and Huyck, 1989, Starostin and Yapaskurt, 2007). Among them gold is very important, and many large and ...

Gold Ore Carbonaceous - HeNan FUMINE Heavy

Carbonaceous Gold Ore Treatment Method 99 customer review Freeport Gold Nevada Mining Association 1980 has announced that it will use chlorine to treat carbonaceous ores at Jerritt Canyon in Nevada. Initially the plant created ores which required about 15 Kg of chlorine per tonne of ore to oxidie the carbonaceous material and the pyrite.

Carbonaceous Gold Ore Treatment Method

2020-6-18  The simplest method of treating a carbonaceous ore is the method described by R. W. Nice (1971) at the McIntyre Porcupine Mine where the carbon, which contains very little gold, is floated off and discarded. The remaining ore is then responsive to cyanidation. This does not work at Carlin because the carbonaceous compounds have a high gold content.

First Findings of Palladium–Gold–REE Ore Mineralization

First Findings of Palladium–Gold–REE Ore Mineralization in Precambrian Carbonaceous Shales on the Western Slope of the Southern Urals A. V. Snachev and Corresponding Member of the RAS V. N ...

(PDF) First Findings of Palladium-Gold-REE Ore ...

First Findings of Palladium-Gold-REE Ore Mineralization in Precambrian Carbonaceous Shales on the Western Slope of the Southern Urals Article (PDF Available) in Doklady Earth Sciences 433(1):866 ...

Black Shale - an overview ScienceDirect Topics

The Talvivaara black shale-hosted Ni-Zn-Cu-Co deposit occurs in eastern Finland (Fig. 9.1.1) and is currently the largest sulfidic Ni resource under exploitation in Western Europe.It is a low-grade (0.22 wt% Ni, 0.50 wt% Zn, 0.13 wt% Cu, 0.02 wt% Co, 0.0017 wt% U at Ni cutoff of 0.07 wt%) but very large deposit with total ore resources (measured + indicated + inferred) reaching 2.053 Gt ...

Metalliferous black shales and related ore deposits

Abstract. This book comprises papers and extended abstracts dealing with a variety of topics including the geochemistry and organic geochemistry of several black shale formations: the nature of modern Black Sea sediments: metal- organic complexes in ore fluids; black shales related to disseminated gold deposits; vanadium concentrations and molybdenum-nickel deposits; and the problem of ...

Black Shale - an overview ScienceDirect Topics

The Talvivaara black shale-hosted Ni-Zn-Cu-Co deposit occurs in eastern Finland (Fig. 9.1.1) and is currently the largest sulfidic Ni resource under exploitation in Western Europe.It is a low-grade (0.22 wt% Ni, 0.50 wt% Zn, 0.13 wt% Cu, 0.02 wt% Co, 0.0017 wt% U at Ni cutoff of 0.07 wt%) but very large deposit with total ore resources (measured + indicated + inferred) reaching 2.053 Gt ...

A Carbonaceous Sedimentary Source-Rock Model for

2019-3-1  B. Sukhoi Log, Lena gold district (Wood and Popov, 2006). Pyritic gold ore is concentrated in an overturned anticline in carbonaceous shales and siltstones. C. Bendigo, central Victoria (Willman, 2007). D. Dufferin deposit, Meguma district (Ryan and Smith, 1998). Gold ores occur in quartz-rich saddle reefs and associated crosscutting quartz veins.

(PDF) First Findings of Palladium-Gold-REE Ore ...

First Findings of Palladium-Gold-REE Ore Mineralization in Precambrian Carbonaceous Shales on the Western Slope of the Southern Urals Article (PDF Available) in Doklady Earth Sciences 433(1):866 ...

black carbonaceous shale and gold mining

1 天前  Natural Gold Ore On Shale. Black Carbonaceous Shale And Gold Mining The giant sukhoi log gold a sukhoi log iron ore deposit is cenhally located in the lna iron orefield region approximately pyrite is widely dishibutcd in black shale throughout includes a sequence of sandstone carbonaceous shale and phyllite named the Chat Online. More Detail

Noble metals in the insoluble carbonaceous

The way of extraction of insoluble carbonaceous substance (ICS) from black shales and technique of determination of noble metals (NM) in it by direct arc atomic emission analysis (AEA) were developed.

A Carbonaceous Sedimentary Source-Rock Model for Carlin ...

2015-1-16  A Carbonaceous Sedimentary Source-Rock Model for Carlin-Type and Orogenic Gold Deposits - A Carbo... 百度首页 登录 加入VIP 享VIP专享文档下载特权 赠共享文档下载特权 100w优质文档免费下载 赠百度阅读VIP精品版 立即开通 意见反馈 下载客户端 网页 ...

Geochemistry of Phanerozoic carbonaceous black

The trace element geochemistry of marine black shales has been successfully used to interpret sediment provenance and deep ocean conditions during sedimentation. More recently, it has been proposed that certain pyritic black shales may act as sources of gold and arsenic for orogenic gold deposits. Four aspects of the geochemistry of the Phanerozoic black shales from the central gold belt/East ...

Banded iron formations, pyritic black shale, and gold ...

Given the abundance of this trace element-enriched pyrite in black shales (~5–10 vol. %), and the thickness and extent of this rock type at Lucky Bay (~7 km3), Homestake (~12 km3), and the Golden Mile (~3 km3), it is at least conceivable that a portion of the gold ore (plus As, Ag, and Te, in their various forms) now in the banded iron ...

BLACK SHALE--ITS DEPOSITION AND DIENESIS 1

2009-3-23  BLACK SHALE--ITS DEPOSITION AND DIENESIS 1 HARRY A. TOURTELOT U.S. Geological Survey, Federal Center, Denver, Colorado 80225 Abstract--Black shale is a dark-colored mudrock containing organic matter that may have generated hy- drocarbons in the subsurface or that may yield hydrocarbons by pyrolysis.

Metalliferous black shales and related ore deposits

Abstract. This book comprises papers and extended abstracts dealing with a variety of topics including the geochemistry and organic geochemistry of several black shale formations: the nature of modern Black Sea sediments: metal- organic complexes in ore fluids; black shales related to disseminated gold deposits; vanadium concentrations and molybdenum-nickel deposits; and the problem of ...

Metalliferous black shales and related ore deposits

Abstract. This book comprises papers and extended abstracts dealing with a variety of topics including the geochemistry and organic geochemistry of several black shale formations: the nature of modern Black Sea sediments: metal- organic complexes in ore fluids; black shales related to disseminated gold deposits; vanadium concentrations and molybdenum-nickel deposits; and the problem of ...

Determination of Au(III) and Ag(I) in Carbonaceous

Techniques of stripping voltammetry (SV) determination of silver and gold in pyrites and carbonaceous matter are developed. The problem of quantitative transfer of the analytes into the solution is solved. For this purpose, the ore matrix of carbonaceous shales was decomposed by mineral acids in autoclaves at high pressures. The element to be determined from the sample matrix was separated by ...

Geochemistry of Phanerozoic carbonaceous black

The black shales display a positive relationship between Al2O3 and the trace elements Ni, Cu, Zn, As, Sb and the organic carbon content is low (<0.5 wt %). The gold content in the shales ranges from 40 to 62 ppb (51 ppb) and correlates weakly with V supporting a possible control of organic processes during deposition of gold in the sediments.

Fluid Inclusion Study of the Penjom, Tersang, and ...

2020-2-29  At the Selinsing gold deposit, gold mineralisation occurs in the form of fine gold particles commonly associated with arsenopyrite and galena hosted in cataclasite, mylonite, phyllite, sandstone, and siltstone. Figure 3. Spatial relationship between carbonaceous black shales

minimizing in gold ore shale cu pb

Pb-Zn ‘‘SEDEX’’ deposits and their copper stock roots, western Cuba Received: 7 January 1997 /Accepted: gold open-pit was opened recently. In this , tano sandstones host the associated Cu stock ores. Near the Pb-Zn ore bodies in the black shales, Fe-values are enhanced, and. Learn More

Distribution of trace elements between carbonaceous matter ...

2020-3-19  Distribution of trace elements between carbonaceous matter and sulfides in a sediment-hosted orogenic gold system Geochimica et Cosmochimica Acta ( IF 4.258) Pub Date : 2020-03-16, DOI: 10.1016/j.gca.2020.03.006

Tellurium, selenium and cobalt enrichment in ...

2 GEOLOGICAL SETTING. The Gwna Group (Figure 1) is a ‘melange’ of Neoproterozoic deep‐sea sedimentary lithologies deposited between 860 and 570 Ma (Horák Evans, 2011).Accretion of the original oceanic sediments and underlying pillowed basalts occurred at latest 550–560 Ma as part of a forearc complex, during the subduction of the Iapetus Ocean on the Proto‐Gondwanan western margin ...

Bituminous Shales - Metallurgist Mineral Processing

2020-6-7  Rich deposits of blende, formed in great part by the secondary enrichment of smaller, or less mineralized, primary ore- bodies, are found near the surface in the Joplin, Mo., district, in the vicinity of Carthage, Lehigh, Central City and Reding’s Mill. At these localities the ore occurs in two ways: in the beds of soft, decomposed carbonaceous shales in the Coal Measures, occupying shallow ...

The Chernoe Ozero gold occurrence in carbonaceous

Read "The Chernoe Ozero gold occurrence in carbonaceous deposits of the ophiolite association: The first object of such a type in the southern Urals, Doklady Earth Sciences" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

A Carbonaceous Sedimentary Source-Rock Model for

These processes produce regionally extensive black shale and turbidite sequences enriched in syngenetic gold and arsenic, commonly from 5 to 100 ppb Au and 10 to 200 ppm As. Rare organic- and sulfide-rich metalliferous black shales may contain up to 1 to 2 ppm Au and over 1,000 ppm As, present as refractory gold in arsenian pyrite and ...

A Carbonaceous Sedimentary Source-Rock Model for

These processes produce regionally extensive black shale and turbidite sequences enriched in syngenetic gold and arsenic, commonly from 5 to 100 ppb Au and 10 to 200 ppm As. Rare organic- and sulfide-rich metalliferous black shales may contain up to 1 to 2 ppm Au and over 1,000 ppm As, present as refractory gold in arsenian pyrite and ...

The S and Se isotope of Lower Cambrian Ni-Mo-Se ...

Sulfur and selenium isotopic composition of two Ni-Mo-Se ore layers from Zunyi and Zhangjiajie were analyzed to understand the oceanic environment and origin of these Lower Cambrian polymetallic layers in South China.Sulfur isotopic difference suggests that ...

Banded iron formations, pyritic black shale, and gold ...

Given the abundance of this trace element-enriched pyrite in black shales (~5–10 vol. %), and the thickness and extent of this rock type at Lucky Bay (~7 km3), Homestake (~12 km3), and the Golden Mile (~3 km3), it is at least conceivable that a portion of the gold ore (plus As, Ag, and Te, in their various forms) now in the banded iron ...

Pyrometallurgical opening of refractory carbonaceous

Carbonaceous and arsenic, highly refractory gold ledge ores are the minerals with complex composition and structure. High recovery of noble metals from them is an unsolved problem of the gold mining industry of the world. Our paper detaily reviews the phase compositions, structure and thermal properties of the source gold refractory ores using physical methods that allowed determining ...

Multiple Sources of Metals of Mineralization in Lower ...

Black shales <0.3 m below (samples 4, 5, Table 3) and <0.4 m above the sulfide ore bed (samples 9–12, Table 3) also display significantly higher concentrations of Mo (21‐fold), Ni (12‐fold), As (5‐fold), Sb and Zn (3‐fold), Co, Cu and P 2 O 5 (2‐fold) than the average Cambrian black shale. Conversely, V and Mn values are comparable ...

A Carbonaceous sedimentary source-rock model ... -

Abstract Orogenic gold deposits localized in carbonaceous sedimentary (black-shale) complexes are major contributors to worldwide balance of gold extracted from the crust, though there is a limited consensus about the role of host sedimentary rocks, involvement of external (i.e., magma-derived) fluids and brittle deformations into ore ...

‘Indicator’ carbonaceous phyllite/graphitic schist in the ...

2019-4-9  ‘Indicator’ carbonaceous phyllite/graphitic schist in the Archean Kundarkocha gold deposit, Singhbhum orogenic belt, eastern India: Implications for gold mineralization vis-a-vis organic matter P R Sahoo andA S Venkatesh∗ Department of Applied Geology, Indian School of Mines, Dhanbad 826 004, Jharkhand, India.

Gold in Sedex Deposits Gold in 2000

Newly recognized gold-rich sedimentary-exhalative (sedex) mineralization in Nevada, with an average gold grade of 14 g/tonne (t), and the occurrence of significant amounts of gold in classic sedex deposits like Rammelsberg, Germany (30 Mt at 1 g/t), Anvil, Canada (120 Mt at 0.7 g/t), and Triumph, Idaho (? at 2.2 g/t) demonstrate that basin brines can form gold ore.

Natural gold ore on shale - luebeckerbridgeclub.de

Carbonaceous Gold Ore Treatment Method. ... Etalliferous Black Shales and Related Ore Deposits. regarding metalliferous blackshale formations and related ore deposits, 2 to evaluate the role of depositional, diagenetic, volcanic, magmatic, metamorphic, and tectonic processes in the origin of metalliferous black shales and related ore deposits ...

Geochemistry of dispersed organic matter in gold-ore ...

Bitumens from carbonaceous shales of various ages of the Baikal-Patom highlands and the Degdekan deposit (Yana-Kolyma folded system) were considered. It was determined that bitumens of the Bodaibo synclinorium are mainly represented by asphaltenes, asphaltogenic acids, and hydrocarbons; bitumens of the Degdekan field are represented predominantly by hydrocarbons.