black carbonaceous shale and gold mining

European Type Jaw Crusher

European Type Jaw Crusher is a new crushing machine, the jaw crusher manufacturer, after the release of traditional jaw crusher. This jaw crusher is a perfect combination of modern science and technology and the production practice, which can better satisfy the automatic production demands of vast customers.

Input Size: 0-930mm
Capacity: 12-650TPH

Materials:
Granite, marble, basalt, limestone, quartz, pebble, copper ore, iron ore.

VSI6X Series Vertical Crusher

Due to the increasing market demand for the scale, intensification, energy conservation, environment protection and high-quality machine-made sand, a Chinese professional sand maker manufacturer, further optimizes the structure and function of traditional vertical-shaft impact crushers and launches a new generation of sand-making and reshaping machine with high efficiency and low costs --- VSI6X Series Vertical Crusher.

Input Size: 0-50mm
Capacity: 100-583TPH

Materials:
Granite, quartz, basalt, pebble, limestone, dolomite, etc.

LM Vertical Mill

 black carbonaceous shale and gold mining

High drying efficiency, Low running cost, Good environmental effect

LM Vertical Mill integrates crushing, drying, grinding, classifying and conveying together, and it is specialized in processing non-metallic minerals, pulverized coal and slag. Its coverage area is reduced by 50% compared with ball mill, and the energy consumption is saved by 30%-40% similarly.

Applications: Cement, coal, power plant desulfurization, metallurgy, chemical industry, non-metallic mineral, construction material, ceramics.

MTW Trapezium Mill

black carbonaceous shale and gold mining

Large capacity, Low consumption, Environmental friendly

MTW European Trapezium Mill has a large market share in the grinding industry. Whether bevel gear overall drive, inner automatic thin-oil lubricating system or arc air channel, these proprietary technologies makes machine advanced, humanized and green.

Applications: Cement, coal , power plant desulfurization, metallurgy, chemical industry, non-metallic mineral, construction material, ceramics.

nihil molestiae consequatur

black carbonaceous shale and gold mining

Little abrasion wear, Long service life

Based on 30 years of development experience of grinding equipment, LM Heavy Industry produced LUM Series Superfine Vertical Roller Grinding Mill to make ultra-fine powder. The grinding roller doesn't contact with millstone usually, which makes abrasion little and service life longer.

Applications: Superfine dry powder of none-metal ores such as calcite, marble, limestone, coarse whiting, talc, barite and dolomite and so on.

black carbonaceous shale and gold mining

Synsedimentary to Early Diagenetic Gold in Black

Along with the large amount of mafic metavolcanics, consistent with typical greenstone belt stratigraphy, the Kalgoorlie goldfield contains at least three fine-grained carbonaceous (meta)black shale units (from oldest to youngest: the Kapai Slate; an unnamed interflow shale near the top of the Paringa Basalt; and black shale forming the base of the Black Flag Group).

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black carbonaceous shale and gold mining

Black Carbonaceous Shale And Gold MiningBlack carbonaceous shale and gold mining gold ore rock crusher impact flail processing quartz the new gold stryker gs hd

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Treatment of carbonaceous refractory gold ores

1991-1-1  In some mines the term "graphitic schist" has been used; in others "carbonaceous shale or black / carbonaceous slate" is used. Recent work on the carbonaceous gold deposits in the Carlin and Cortez trends [2] and Prestea Goldfields, Ghana [3,8] have thrown further light on the nature of carbonaceous matter in gold ores.

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Gold mineralization in Proterozoic black shales:

2014-12-1  Gold in black shales has become one of the most important deposit types for gold exploration in northern China. Although gold deposits in black shales have been studied for several decades, their genesis and mineralization mechanism are still a matter of controversy.

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Resolving the role of carbonaceous material in gold

2017-2-1  Carbonaceous material (CM) is commonly associated with gold and sulfides in metasediment-hosted orogenic gold deposits. The role of CM in Au deposition is controversial; CM has been proposed to contribute to gold deposition by reducing Au bisulfide complexes, or by facilitating sulfidation, which destabilizes Au in bisulfide complexes with resultant Au deposition.

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A Carbonaceous Sedimentary Source-Rock Model for

2019-3-1  structural sites such as fold hinge zones, shear or breccia zones within or above the black shale sequence. LA-ICP-MS analyses of diagenetic pyrite in carbonaceous sediments, both associated and not associated with gold deposits, suggests that invisible gold contents of greater than 250 ppb in diagenetic pyrite, are

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(PDF) Sediment-hosted disseminated gold

Mineralisation at the Zarshuran, NW Iran, occurs on the flank of an inlier of Precambrian rocks hosted in black silty calcareous and carbonaceous shale with interbedded

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Banded iron formations, pyritic black shale, and gold

Banded iron formations (BIF) are predominantly Precambrian sedimentary rocks composed of alternating layers of iron-rich minerals (commonly hematite and magnetite, but also siderite, chlorite, and grunerite) and silica-rich minerals (e.g., 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

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Gold, Mining and Prospecting: Gold in Black Shale,

2011-12-28  Gold and other metals are found in black shale usually in quantities too small to mine economically using the old methods, but that is all changed with the

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black carbonaceous shale and gold mining

Black Carbonaceous Shale And Gold MiningBlack carbonaceous shale and gold mining gold ore rock crusher impact flail processing quartz the new gold stryker gs hd

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(PDF) Sediment-hosted disseminated gold

57547 Black carbonaceous shale Carbonaceous 1.45 2.95 4800 5.80 30 66 57549 Mineralised black shale Pyritic 1.45 0.07 nd 0.01 nd 12 57847 Microcrytalline orpiment Arsenical 110 60 5 20

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ArticleName Carbonaceous shales of the Kamensk block

In the black shale formations of the Kamensk block, industrial gold and silver contents have been established, confined to intensely dislocated, silicified and sulfidized rocks.

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Gold mineralization in Proterozoic black shales:

2014-12-1  The origin of fluid involved in black shale gold deposits is an ongoing controversy. Many researchers insisted that ore fluids of orogenic gold deposits are of metamorphic origin (Groves et al., 1998, Kerrich and Cassidy, 1994, McCuaig and Kerrich, 1998, Phillips and Powell, 2010).

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Some Observations on the Determination of Gold and

This study has shown that during combustion in oxygen at 600 °C, PGE contained in the Natalka black shale ores are lost as gaseous reaction products. Thus, the volatilized PGE (recovered in traps) account for up to 14% Pt, 40% Pd, 40% Ru and 10 % Ir relative to their total concentrations in a carbonaceous

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[PDF] A Carbonaceous Sedimentary Source-Rock

This paper presents evidence and arguments that carbonaceous sedimentary rocks were a source for Au and As in sediment-hosted orogenic and Carlin-type gold deposits and develops a corresponding genetic model. In this two-stage basin-scale model, gold and arsenic are introduced early into black shale and turbidite basins during sedimentation and diagenesis (stage 1) and concentrated to ore

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A Carbonaceous Sedimentary Source-Rock Model for

2019-3-1  2. Carbonaceous shales and related gold-arsenic ores. A. Sukhoi Log pyritic carbonaceous mudstones and siltstones of the Khomolkho Formation, considered as the source rocks for the deposit. B. Folded gold-bearing pyrite-quartz veinlets emplaced during deformation of carbonaceous shale source rocks at Sukhoi Log. C. Popvich Formation pyritic

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Banded iron formations, pyritic black shale, and gold

Banded iron formations (BIF) are predominantly Precambrian sedimentary rocks composed of alternating layers of iron-rich minerals (commonly hematite and magnetite, but also siderite, chlorite, and grunerite) and silica-rich minerals (e.g., 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 price

Gold, Mining and Prospecting: Gold in Black Shale,

2011-12-28  Gold and other metals are found in black shale usually in quantities too small to mine economically using the old methods, but that is all changed with the introduction of a process called bioextraction that is closely related to

get price

An investigation of the carbonaceous component of preg

2009-11-20  processing. The ability of carbonaceous material to adsorb gold (I) cyanide from solution is widely acknowledged and documented2,7,8,12-14. Early characterization studies by Radtke and Scheiner15 into the physical and chemical nature of carbonaceous gold ores identified two distinct organic components in addition to an activated carbon type

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GOLD MINERALIZATION IN THE BLACK CLOUD #3

2020-4-2  Belden Shale, a 400 to 600 foot thick unit of black carbonaceous shale with interbedded sandstone and limestone. The Belden grades upward into the Minturn Formation which consists of micaceous, arkosic quartz arenite and black shale in its lower part and arkosic quartz arenite and conglomerate in its upper part.

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Geochemistry of Phanerozoic carbonaceous black

The gold content of all sedimentary pyrites ranges from 0.01 to 5 ppm (mean 1 ppm). The mean value of 1 ppm (1000 ppb) is far above the value of 250 ppb documented by Large et al. (2011) in diagenetic pyrite indicative of carbonaceous shale source rocks with the potential to produce economic gold

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ArticleName Carbonaceous shales of the Kamensk block

In the black shale formations of the Kamensk block, industrial gold and silver contents have been established, confined to intensely dislocated, silicified and sulfidized rocks.

get price

[PDF] A Carbonaceous Sedimentary Source-Rock

This paper presents evidence and arguments that carbonaceous sedimentary rocks were a source for Au and As in sediment-hosted orogenic and Carlin-type gold deposits and develops a corresponding genetic model. In this two-stage basin-scale model, gold and arsenic are introduced early into black shale and turbidite basins during sedimentation and diagenesis (stage 1) and concentrated to ore

get price

Banded iron formations, pyritic black shale, and gold

Banded iron formations (BIF) are predominantly Precambrian sedimentary rocks composed of alternating layers of iron-rich minerals (commonly hematite and magnetite, but also siderite, chlorite, and grunerite) and silica-rich minerals (e.g., 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 price

A Carbonaceous Sedimentary Source-Rock Model for

2019-3-1  2. Carbonaceous shales and related gold-arsenic ores. A. Sukhoi Log pyritic carbonaceous mudstones and siltstones of the Khomolkho Formation, considered as the source rocks for the deposit. B. Folded gold-bearing pyrite-quartz veinlets emplaced during deformation of carbonaceous shale source rocks at Sukhoi Log. C. Popvich Formation pyritic

get price

Gold, Mining and Prospecting: Gold in Black Shale,

2011-12-28  Gold and other metals are found in black shale usually in quantities too small to mine economically using the old methods, but that is all changed with the introduction of a process called bioextraction that is closely related to

get price

An investigation of the carbonaceous component of preg

2009-11-20  processing. The ability of carbonaceous material to adsorb gold (I) cyanide from solution is widely acknowledged and documented2,7,8,12-14. Early characterization studies by Radtke and Scheiner15 into the physical and chemical nature of carbonaceous gold ores identified two distinct organic components in addition to an activated carbon type

get price

Post Gondwana African land surfaces and pedogenetic

ite and carbonaceous shale beds of the Black Reef Formation. However, the shale beds are completely bleached and altered to white kaolinitic clay. The kaolinitic clay is overlain by a 40-to 50-m-thick succession of metre-thick, black ferroman­ ganese wad beds alternating with thin, decimetre-thick white kaolinitic clay beds.

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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

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