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HGT Hydraulic Gyratory Crusher

HGT Hydraulic Gyratory Crusher

HGT Gyratory Crusher is a new-type intelligent coarse crusher with big capacity and high efficiency. It integrates mechanical, hydraulic, electric, automated, and intelligent controlling technologies which grant it with advantages traditional crushing

European Type Jaw Crusher PEW

European Type Jaw Crusher PEW

Jaw crushers has stationary jaw crusher, portable jaw crusher and mobile jaw crusher (crawler jaw crusher). Jaw crusher (PEW Series) is not only able to be used together with mine-selecting and gravel processing equipments but also be used independen

Jaw Crusher PE

Jaw Crusher PE

Jaw crusher is driven by a motor, and the moving jaw moves up and down via eccentric shaft. The angle between fixed jaw and moving jaw becomes smaller when the moving jaw runs down, then the materials are crushed into pieces. It will become bigger whe

HPT Hydraulic Cone Crusher

HPT Hydraulic Cone Crusher

Base on the latest technology and decades of years’ producing experience, Our Company designed the HPT series cone crusher. It has excellent crushing efficiency and good hydraulic control system. Now the HPC series cone crusher has wide application

HST Hydraulic Cone Crusher

HST Hydraulic Cone Crusher

HST Single Cylinder Hydraulic Cone Crusher is a new high-efficiency cone crusher independently researched, developed and designed by SBM through summarizing over twenty years of experience and widely absorbing advanced American and German technologies

CI5X Series Impact Crusher

CI5X Series Impact Crusher

CI5X Impact Crusher breaks materials with impact force. When materials enter the working area of hammer, they may be crushed under the high-speed shock and then thrown onto the impact device above the rotor for another crushing. Next, materials bounce

VSI6X Series Vertical Crusher

VSI6X Series Vertical Crusher

Due to the increasing market demand for the scale, intensification, energy conservation, environment protection and high-quality machine-made sand, SBM, a Chinese professional sand maker manufacturer, further optimizes the structure and function of tr

VSI5X Vertical Shaft Impact Crusher

VSI5X Vertical Shaft Impact Crusher

VSI Crushers Working Principle Raw material falls down into feed hopper, and then enters rotor through central entrance hole. It is accelerated in high-speed rotor, and then is thrown out at speed of 60-75m/s. When hitting anvil, it is crushed. Final

VSI Vertical Shaft Impact Crusher

VSI Vertical Shaft Impact Crusher

VSI Series vertical shaft impact crusher is designed by reputed German expert of SBM and every index is in worlds leading standard. It incorporates three crushing types and it can be operated 720 hours continuously. Nowadays, VSI crusher has replaced

VUS aggregate optimization system

VUS aggregate optimization system

The VU system is a global most-advanced dry-process sand-making system. The system is constructed like a tower. Its fully-enclosed layout features high integration. It integrates the functions of high-efficiency sand making, particle shape optimizatio

MTW-Z European Trapezium Mill

MTW-Z European Trapezium Mill

MTW European Grinding Mill is innovatively designed through deep research on grinding mills and development experience. It absorbs the latest European powder grinding technology and concept, and combines the suggestions of 9158 customers on grinding m

5X Series Roller Grinding Mill

5X Series Roller Grinding Mill

Grinding roller of MB5X Pendulum Roller Grinding Mill l adopts diluted oil lubrication. It is a technology initiated domestically which is maintenance-free and easy to operate. Diluted oil lubrication is oil bath lubrication, more convenient than grea

MTW Trapezium Mill

MTW Trapezium Mill

MTW European Grinding Mill is innovatively designed through deep research on grinding mills and development experience. It absorbs the latest European powder grinding technology and concept, and combines the suggestions of 9158 customers on grinding m

LM Vertical Mill

LM Vertical Mill

LM Vertical Grinding Mill integrates crushing, drying, grinding, separating and transport. The structure is simple while the layout is compact. Its occupational area is about 50% of that of the ball-milling system. The LM grinding mill can also be arr

TGM Trapezium Mill

TGM Trapezium Mill

TGM Super Pressure Trapezium Mill The operation principle of main unit of Trapezium mill is that main unit runs with the central shaft that is driven by a gear box. The top of the shaft is connected with a quincunx stand on which a grinding roller is

metabasalt hosted gold quartz stringers

Metabasalt an overview ScienceDirect Topics

May 04, 2011 Within both the mafic units and the calc-silicate-albite rocks are common metamorphosed dolomite ± quartz veins, now comprising largely dolomite, calcite, diopside, quartz, and actinolite. These veins are the hosts to the uraninite-gold mineralization, but only where they occur within metabasalt.

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International Journal of Geology and Mining

and sulphide hosted gold. Sheared metabasalt zone shows contact with narrow bands of quartz porphyry with occurrence of free gold in quartz. Auriferous quartz veins run roughly parallel to each other with average gold grade of 4.02 g/ton (Chakraborty et al., 1992, Ugarkar et al., 2016) in east of Hosur champion. Gold occurs here in

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Shear-Controlled Gold Mineralization of G. R. Halli Area

Quartz veins traversing the metabasalts vary from approximately 3 to 20 cm. Mixed trails of aqueous-carbonic rich, biphase and carbonic monophase inclusions are o- b- served predominantly within the undeformed quartz grains. These inclusions are of smaller size and show less equilibrated shapes in comparison to the primary fluid inclusions.

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Shear-Controlled Gold Mineralization of G. R. Halli Area

Gold mineralization at G. R. Halli is located along the Central shear zone of Chitradurga schist belt, extending from west of Gonur, through east of G. R. Halli and C. K. Halli to east of Honnemardi, roughly parallel to stratigraphic units. The NNW-SSE trending shear zone has a width of 0.5 to 1.5 km shows extensive carbonatization of metabasalts and the associated lithologies confined to NNW

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Work performed by: Curran Bay Resources

-abundant 1-2 mm quartz stringers 1.1-1.4, silicified, 30# pyrite 7.6 7.9 Metabasalt -same as 0-5.6 7.9 8.5 8.5 31.4 White Quartz-20& wallrock inclusions with abundant pyrite Metabasalt-as above-minor quartz, 1-5& pyrite 16.5-16.6, 50# quartz, 20# pyrite, bleb chalcopyrite tiny flecks of visible gold in white quartz Samples Number

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Central Dempster A soil sample taken adjacent to an exposure of felsic porphyry hosted with­ in sheared metadacites (Unit 11) returned 1,960 ppb gold (Fig. 10). Fre­ quent limonitic quartz stringers, 0.5 to 2.0 cm thick, cut both porphyry and mctadacite Iithologies;

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Major Mines & Projects Tabakoto Mine

A series of quartz stringers and veins intrude this package. BRITTLE FRACTURE ZONE HOSTED DEPOSITS At the Dar Salam, Tabakoto and Dioulafoundou and Kofi C Deposits, a geological model for gold mineralization proposed by Nielsen (2004) favours the emplacement of gold-bearing mineralization along structures developed during north-northeast

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Carbon isotope studies of auriferous quartz carbonate

Jun 30, 2012 The Bababudan Group consists of quartz pebble conglomerate, quartzite, metabasalt, rhyodacite, banded iron formation sequence that accumulated on a peneplained older than 3 Ga gneiss-granitoid basement in a platformal tectonic setting (Srinivasan and Ojakangas, 1986).

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Gold mineralization in the Mazowe area, Harare-Bindura

In the Mazowe area some 40 km NW of Harare in Zimbabwe, gold mineralization is hosted in a variety of lithologies of the Archean Harare-Bindura-Shamva greenstone belt, in structures related to the late Archean regional D2/3 event. Conspicuous mineralzogical differences exist between the mines; the mainly granodiorite-hosted workings at Mazowe mine are on pyrite-rich reefs, mines of the

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Vein (geology) Wikipedia

In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock.Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation.The hydraulic flow involved is usually due to hydrothermal circulation.. Veins are classically thought of as being the result of growth of crystals on the walls of planar fractures in

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Shear-Controlled Gold Mineralization of G. R. Halli Area

hedral arsenopyrite with quartz-carbonate vein in al-tered metabasalt. are further classified depending on proximal to distal alteration by 9]. The gold [mineralization occurs in the form of disseminations, stringers and fracture fill-ing sulphides mainly pyrite, arsenopyrite, galena, sphalerite, minor chalcopyrite

More

Shear zone-hosted gold mineralization in the Late

Jul 18, 2013 The silicified shear zone of the pillow metabasalt rocks, however, is richer in SiO 2 (>80%) and contains up to 45 ppm Au. Gold is observed as fine grains ( ca 0.3 mm) and minute blebs (20-0.5 µm) intergrown with quartz or as fine, irregular specks associated with hematite and malachite.

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stringer veins, 0.5 to 3.0 cm in width, occur within east-west trending felsic porphyry dykes or sills hosted by sericitic metadacites. In one exposure, two discrete porphyry units, each 1.2 to 3.0 m wide and con­ taining 5 to 77. quartz-tourmaline stringers, are present. These subparal­

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Ore and Alteration Types of the Gold and Copper

A stringer stockwork Cu-Au ore in the Suyoc prospect displays open-space fi lling texture. Sample JSPIT-2 oc-curs at 95 m a.s.l. in the Suyoc prospect. It is a quartz pyrite stringer stockwork type with quartz pyrite veinlets ranging from 1 to 10 mm wide. The rock is moderately hard and is heavily stained with malachite (Fig. 5a).

More

Shear-Controlled Gold Mineralization of G. R. Halli Area

Gold mineralization at G. R. Halli is located along the Central shear zone of Chitradurga schist belt, extending from west of Gonur, through east of G. R. Halli and C. K. Halli to east of Honnemardi, roughly parallel to stratigraphic units. The NNW-SSE trending shear zone has a width of 0.5 to 1.5 km shows extensive carbonatization of metabasalts and the associated lithologies confined to NNW

More

Major Mines & Projects Tabakoto Mine

A series of quartz stringers and veins intrude this package. BRITTLE FRACTURE ZONE HOSTED DEPOSITS At the Dar Salam, Tabakoto and Dioulafoundou and Kofi C Deposits, a geological model for gold mineralization proposed by Nielsen (2004) favours the emplacement of gold-bearing mineralization along structures developed during north-northeast

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Major Mines & Projects Essakane (CIL, HL) Project

The Essakane Gold Mine occurs in the Paleoproterozoic Oudalan Gorouol greenstone belt in northeast Burkina Faso. The stratigraphy can be subdivided into a succession of lowergreenschist facies meta sediments (argillites, arenites, and volcaniclastics), conglomerate, and subordinate felsic volcanics, and an overlying Tarkwaian-like succession comprising siliciclastic meta-sediments and

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Minerals Free Full-Text Archaean Gold Mineralization

Three major gold deposits, Matandani, Kukuluma, and Area 3, host several million ouncez (Moz) of gold, along a ~5 km long, WNW trend in the E part of the Geita Greenstone Belt, NW Tanzania. The deposits are hosted in Archaean volcanoclastic sediment and intrusive diorite. The geological evolution of the deposits involved three separate stages: (1) an early stage of syn-sedimentary extensional

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Vein (geology) Wikipedia

In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock.Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation.The hydraulic flow involved is usually due to hydrothermal circulation.. Veins are classically thought of as being the result of growth of crystals on the walls of planar fractures in

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Gold in Wyoming

Jan 13, 2018 South of the shaft, the shear was trenched for 100 feet exposing sheared quartz lenses with visible gold. A grab sample of quartz assayed 1.18 opt Au. Three 2-foot channel sample dug across the shear assayed 0.11 opt Au, 0.35 opt Au and 0.63 opt Au. As incredible as it sounds, much of the shear remained unexplored when investigated by Hausel

More

Work performed by: Curran Bay Resources

-abundant 1-2 mm quartz stringers 1.1-1.4, silicified, 30# pyrite 7.6 7.9 Metabasalt -same as 0-5.6 7.9 8.5 8.5 31.4 White Quartz-20& wallrock inclusions with abundant pyrite Metabasalt-as above-minor quartz, 1-5& pyrite 16.5-16.6, 50# quartz, 20# pyrite, bleb chalcopyrite tiny flecks of visible gold in white quartz Samples Number

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Tolovana (ARDF #LG110) Au

The gold-bearing quartz stringers contain euhedral stibnite but do not normally contain pyrite (Smith, 1913a). The gold through 1912, varied from 792 to 824 fine; the highest silver content was 180 parts per thousand from a sample with a gold fineness of 792 (Smith, 1913, B 525; Smith, 1913, B 542).

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Greek Boy (ARDF #JU035) Ag, Au, Cu

Roehm (1938 [PE 112-14]) describes the deposit as a more or less continuous stringer lode in a narrow schist band 8 to 20 feet wide that is along the contact of quartz diorite gneiss and metabasalt. The contact varies in strike from N 26-40 W and dips slightly off vertical to the southwest; it can be traced across the entire length of the claims.

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(PDF) REE geochemistry of auriferous quartz carbonate

Quartz veins present in the Kudrekonda boninites contain gold grains showing affinity towards quartz-carbonate vein type greenstone hosted occurrences. EPMA data record 88.5-90.3wt.% Au content

More

Shear-Controlled Gold Mineralization of G. R. Halli Area

hedral arsenopyrite with quartz-carbonate vein in al-tered metabasalt. are further classified depending on proximal to distal alteration by 9]. The gold [mineralization occurs in the form of disseminations, stringers and fracture fill-ing sulphides mainly pyrite, arsenopyrite, galena, sphalerite, minor chalcopyrite

More

Shear zone-hosted gold mineralization in the Late

Jul 18, 2013 The silicified shear zone of the pillow metabasalt rocks, however, is richer in SiO 2 (>80%) and contains up to 45 ppm Au. Gold is observed as fine grains ( ca 0.3 mm) and minute blebs (20-0.5 µm) intergrown with quartz or as fine, irregular specks associated with hematite and malachite.

More

Shear-Controlled Gold Mineralization of G. R. Halli Area

Gold mineralization at G. R. Halli is located along the Central shear zone of Chitradurga schist belt, extending from west of Gonur, through east of G. R. Halli and C. K. Halli to east of Honnemardi, roughly parallel to stratigraphic units. The NNW-SSE trending shear zone has a width of 0.5 to 1.5 km shows extensive carbonatization of metabasalts and the associated lithologies confined to NNW

More

Ore and Alteration Types of the Gold and Copper

A stringer stockwork Cu-Au ore in the Suyoc prospect displays open-space fi lling texture. Sample JSPIT-2 oc-curs at 95 m a.s.l. in the Suyoc prospect. It is a quartz pyrite stringer stockwork type with quartz pyrite veinlets ranging from 1 to 10 mm wide. The rock is moderately hard and is heavily stained with malachite (Fig. 5a).

More

Ore and Alteration Types of the Gold and Copper

Jun 15, 2007 A stringer–stockwork Cu‐Au ore in the Suyoc prospect displays open‐space filling texture. Sample JSPIT‐2 occurs at 95 m a.s.l. in the Suyoc prospect. It is a quartz–pyrite stringer–stockwork type with quartz–pyrite veinlets ranging from 1 to 10 mm wide. The rock is moderately hard and is heavily stained with malachite .

More

Pressure, temperature, and timing of mineralization of the

Gold mineralization in the Klipwal Shear Zone (KSZ) at the Klipwal Gold Mine is confined to laminated quartz-carbonate lodes, stringers, and associated alteration in sandstone and siltstone of the Delfkom Formation in the upper Mozaan Group of the Mesoarchaean Pongola Supergroup. The moderately dipping brittle-ductile KSZ strikes N-S with an oblique-reverse, sinistral sense of shear.

More

Tolovana (ARDF #LG110) Au

The gold-bearing quartz stringers contain euhedral stibnite but do not normally contain pyrite (Smith, 1913a). The gold through 1912, varied from 792 to 824 fine; the highest silver content was 180 parts per thousand from a sample with a gold fineness of 792 (Smith, 1913, B 525; Smith, 1913, B 542).

More

Major Mines & Projects Tabakoto Mine

A series of quartz stringers and veins intrude this package. BRITTLE FRACTURE ZONE HOSTED DEPOSITS At the Dar Salam, Tabakoto and Dioulafoundou and Kofi C Deposits, a geological model for gold mineralization proposed by Nielsen (2004) favours the emplacement of gold-bearing mineralization along structures developed during north-northeast

More

Minerals Free Full-Text Archaean Gold Mineralization

Three major gold deposits, Matandani, Kukuluma, and Area 3, host several million ouncez (Moz) of gold, along a ~5 km long, WNW trend in the E part of the Geita Greenstone Belt, NW Tanzania. The deposits are hosted in Archaean volcanoclastic sediment and intrusive diorite. The geological evolution of the deposits involved three separate stages: (1) an early stage of syn-sedimentary extensional

More

Gold in Wyoming

Jan 13, 2018 South of the shaft, the shear was trenched for 100 feet exposing sheared quartz lenses with visible gold. A grab sample of quartz assayed 1.18 opt Au. Three 2-foot channel sample dug across the shear assayed 0.11 opt Au, 0.35 opt Au and 0.63 opt Au. As incredible as it sounds, much of the shear remained unexplored when investigated by Hausel

More

Work performed by: Curran Bay Resources

-abundant 1-2 mm quartz stringers 1.1-1.4, silicified, 30# pyrite 7.6 7.9 Metabasalt -same as 0-5.6 7.9 8.5 8.5 31.4 White Quartz-20& wallrock inclusions with abundant pyrite Metabasalt-as above-minor quartz, 1-5& pyrite 16.5-16.6, 50# quartz, 20# pyrite, bleb chalcopyrite tiny flecks of visible gold in white quartz Samples Number

More

(PDF) Yilgarn Star gold deposit, Southern Cross greenstone

metabasalt/amphibolite represents a possible regional quartz veins and stringers. Tremolitic ultramafic-hosted The Transvaal lode gold deposit is hosted in ultramafic schists and graphite

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(PDF) REE geochemistry of auriferous quartz carbonate

Quartz veins present in the Kudrekonda boninites contain gold grains showing affinity towards quartz-carbonate vein type greenstone hosted occurrences. EPMA data record 88.5-90.3wt.% Au content

More

Alaska Division of Geological & Geophysical Surveys

ppm gold. Shear zone, consisting of brecciated metabasalt and in some places brecciated metadiorite, silicified at most locations, up to 5% pyrite with chalcopyrite less than 0.06%, fault gouge zones up to 0.1 ft. thick and quartz stringer zones at some locations. From nil to 5.93 ppm gold, with from 0.068 to 0.136 ppm the usual range.

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