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the gold deposits at majors creek consist of mineralised

Primary gold mineralisation The gold deposits at Majors Creek consist of mineralised alteration Gulins in granodiorite and associated aplites, as well as » More detailed! Strategic Minerals :: Gold the Sandy Creek area, expanding the potential of the field to host a major gold deposit. estimate consists of several deposits...

the gold deposits at majors creek consist of mineralised

Dargues Gold Mine Information. The deposit was discovered in 1868 by Joseph Dargue while he was mining alluvial gold in Spring Creek and it is still the largest known bedrock gold deposit in the Majors Creek area Natural surface weathering had broken down the pyrite in the upper part of the deposit to release its contained gold. More; Copper

the gold deposits at majors creek consist of mineralised

Majors creek Quarterly Notes NSW Resources and Energy. 28 Aug 2014 granitoid-related gold mineralisation near Majors Creek,. New South deposits associated with the Shoalhaven and Araluen .. within the mineralised zones at Dargues Reef and

the gold deposits at majors creek consist of mineralised

Primary gold mineralisation The gold deposits at Majors Creek consist of mineralised alteration zones in granodiorite and . techno commercial apl beijing e im co pvt ltd. Company Pages Expand Your Business Social Media Presence business.linkedin company pagesGenerate business leads and strengthen current customer relationships by sharing valuable and rich content via company updates.

the gold deposits at majors creek consist of mineralised

the gold deposits at majors creek consist of mineralised alteration zones. Final Environmental Impact Statement Crown Jewel Mine . U.S.D.A. Forest Service Department of Ecology Tonasket Ranger District Washington State 1 West Winesap P.O. Box 47703 Tonasket, Washington 98855 Olympia, Washington 98504 FINAL ENVIRONMENTAL IMPACT STATEMENT CROWN JEWEL MINE January

Abstract record 2003 14 part2 Home Geoscience Australia

The gold deposits at Majors Creek consist of mineralised alteration zones in granodiorite and associated aplites, as well as discrete quartz and quartz-calcite veins in granodiorite and the immediately adjacent country rocks (Gilligan, 1975, Wake and Taylor, 1988).

the gold deposits at majors creek consist of mineralised

the gold deposits at majors creek consist of mineralised alteration zones. Home; the gold deposits at majors creek consist of mineralised alteration zones; BWZ Heavy Duty Apron Feeder. CS Cone Crusher. Flotation Machine. Hammer Crusher. High-frequency Screen. HJ Series Jaw Crusher. HPC Cone Crusher . HPT Cone Crusher. HST Cone Crusher. Hydraulic-driven Track Mobile Plant.

Major's Creek, N.S.W., Australia — A Devonian epithermal

01/10/1988 A relationship with similar epithermal gold deposits in the adjacent Eden-Yalwal Rift zone is inferred. Mineralized veins at Major's Creek consist of preponderant quartz and carbonate gangue with gold, Au-Ag tellurides and base metal sulphides within sili

(PDF) Structural controls and timing of gold

Known gold deposit s are concentrat ed in the roof zone of the pluton. This zone This zone contains remnants of dioriti c and monzod ioritic phases that appear t o have intruded an d then been

Deposit Portal Cripple Creek DM GEODE

In the oxide zone, gold occurs within hydrous iron and manganese oxides and as gold-silver tellurides, accompanied by a gangue of hematite and quartz. Silver is present but is economically unimportant. Gold mineralisation can be encapsulated by iron and manganese oxides, pyrite, K-feldspar alteration and quartz. Individual gold particles are generally less than 20 µm in size and occur as native gold with pyrite or native gold after gold

Diversified Minerals Dargues Gold Mine Mineral Resource

Figure 2: Majors Creek local geology 2.2 Mineralisation and Alteration Mineralisation at Dargues Reef occurs in numerous discrete, fracture-controlled sulphide lodes situated within intense zones of phyllic alteration. The lodes are steeply dipping (80-90o) and have a variable strike from E-W to ENE-WSW. The main zones of mineralisation occur

Dargues Gold Mine Information Majors Creek

Dargues Reef, part of the 659 km2 Majors Creek Gold Project situated approximately 60km southwest of Canberra, just north of the village of Majors Creek.Unity holds 100% of the project since its purchase of Cortona Resources in early 2013. Currently under development, Dargues Reef will comprise an underground decline mine, a run-of-mine pad, temporary waste rock emplacement, crushing facility

Major's Creek, N.S.W., Australia — A Devonian epithermal

Observed argillic alteration is a consequence of acid leaching above the boiling zone. Mineralization is epithermal in character and probably formed during the existence of a hydrothermal convective system. A relationship with similar epithermal gold deposits in the adjacent Eden-Yalwal Rift zone is inferred. Mineralized veins at Major's Creek consist of preponderant quartz and carbonate

Major's Creek, N.S.W., Australia — A Devonian epithermal

Mineralized veins at Major's Creek consist of preponderant quartz and carbonate gangue with gold, Au-Ag tellurides and base metal sulphides within silicified and sericitized dykes or granodiorite of the Braidwood Granite. Fluid inclusion studies indicate deposition throughout the range 350–80°C by low salinity fluids. Significant Au-Ag telluride mineralization took place at a temperature of

(PDF) Gold in the ‘Mundic’: The Saga of Dargue’s Reef

Dargue’s Reef is the largest known bedrock gold deposit in the Majors Creek goldfield of southern NSW. The history of its mining and exploitation highlight some of the challenges and

Deposit Portal Cripple Creek DM GEODE

The bulk tonnage deposits consist of mineralised tectonic and hydrothermal breccias cutting Tertiary alkali volcanic rocks. Higher grade pods of mineralisation occur at structural intersections and/or as sheeted vein zones along zones of strike deflection. Broader zones of disseminated mineralisation occur primarily as micro-fracture halos around the stronger alteration zones in the more

Surficial arsenic redistribution above gold-mineralised

Groundwater-driven clay alteration of gold-mineralised Otago Schist has caused leaching and redistribution of arsenic (As). At Macraes mine in East Otago, there is a zone of alteration up to 50 m

The mercury and silver contents of gold in quartz vein

systems, and Hg-free gold occurs in central and northwest Otago vein systems, irrespective of host terrane. One Central Otago mineralised zone has up to 1.7 wt% Hg in the gold. Au-Ag alloy (3-8 wt% Ag) is typical for gold found in most Torlesse-hosted vein deposits, and Au-Ag-Hg alloys with 1-4 wt% Hg are found in vein material from the

Pentland Gold ActivEX Limited

Pentland Gold Project. The Pentland Gold Project is a large land holding with all tenements in good standing. The project contains five established prospects where ActivEX has carried out extensive ground-based surveys and these areas are drill-ready with a number of targets already identified. Outside of these areas, the project package is only lightly explored and significant potential remains.

PorterGeo Database Ore Deposit Description

The bulk tonnage deposits consist of mineralised tectonic and hydrothermal breccias cutting Tertiary alkali volcanic rocks. Higher grade pods of mineralisation occur at structural intersections and/or as sheeted vein zones along zones of strike deflection. Broader zones of disseminated mineralisation occur primarily as micro-fracture halos around the stronger alteration zones in the more

Diversified Minerals Dargues Gold Mine Mineral Resource

Figure 2: Majors Creek local geology 2.2 Mineralisation and Alteration Mineralisation at Dargues Reef occurs in numerous discrete, fracture-controlled sulphide lodes situated within intense zones of phyllic alteration. The lodes are steeply dipping (80-90o) and have a variable strike from E-W to ENE-WSW. The main zones of mineralisation occur

Dargues Gold Mine Information Majors Creek

Dargues Reef, part of the 659 km2 Majors Creek Gold Project situated approximately 60km southwest of Canberra, just north of the village of Majors Creek.Unity holds 100% of the project since its purchase of Cortona Resources in early 2013. Currently under development, Dargues Reef will comprise an underground decline mine, a run-of-mine pad, temporary waste rock emplacement, crushing facility

Major's Creek, N.S.W., Australia — A Devonian epithermal

Observed argillic alteration is a consequence of acid leaching above the boiling zone. Mineralization is epithermal in character and probably formed during the existence of a hydrothermal convective system. A relationship with similar epithermal gold deposits in the adjacent Eden-Yalwal Rift zone is inferred. Mineralized veins at Major's Creek consist of preponderant quartz and carbonate

Positive Independent Scoping Study completed on potential

Australian gold company Cortona Resources (ASX: CRC) maintained a high level of activity at its 100% owned Majors Creek Project in the Lachlan Fold Belt, NSW, where the Company received very encouraging results from a detailed Scoping Study on its 100% owned Dargues Reef deposit (1.44Mt @ 6.2g/t for 286,000oz Au). A total of 5,391m of drilling

Gold deposits of Suriname: geological context, production

The deposits are located within three mineralised zones along two major structures: North (Koolhoven, J-Zone and Pay Caro), Central (Rosebel deposit) and South (Mayo, Royal Hill and Roma). The northern deposits are to a significant extent associated with turbiditic sequences (mudstone–siltstone–greywacke) in contact with volcanic rocks, while the southern deposits exhibit an association

Intrusion-related Gold Systems. A brief summary by Bruce

The new frontier for new discoveries of significant large gold deposits ‐ Intrusive‐related gold systems [IRGS] a Brief Summary of Characteristics and Identifiable Features (relevant to greenfields exploration) The classification of Intrusion‐related gold systems (IRGS) is a relatively recent development. Hart (2005) points out that no serious and comprehensive research of the

The mercury and silver contents of gold in quartz vein

systems, and Hg-free gold occurs in central and northwest Otago vein systems, irrespective of host terrane. One Central Otago mineralised zone has up to 1.7 wt% Hg in the gold. Au-Ag alloy (3-8 wt% Ag) is typical for gold found in most Torlesse-hosted vein deposits, and Au-Ag-Hg alloys with 1-4 wt% Hg are found in vein material from the

Surficial arsenic redistribution above gold-mineralised

Groundwater-driven clay alteration of gold-mineralised Otago Schist has caused leaching and redistribution of arsenic (As). At Macraes mine in East Otago, there is a zone of alteration up to 50 m

PorterGeo Database Ore Deposit Description

The bulk tonnage deposits consist of mineralised tectonic and hydrothermal breccias cutting Tertiary alkali volcanic rocks. Higher grade pods of mineralisation occur at structural intersections and/or as sheeted vein zones along zones of strike deflection. Broader zones of disseminated mineralisation occur primarily as micro-fracture halos around the stronger alteration zones in the more

Types of Gold Deposits. Prospecting Australia

Types of Gold Deposits. Gold can be described according to its natural size and nature of occurrence. Based on these, gold occurs in six main forms: (1) Large pieces of free gold >2mm in size that are known as nuggets. (2) Pieces of gold and gangue (quartz, ironstone etc.) known as specimens. (3) Coarse to fine grains of free gold 2mm to 150 microns that are visible to the naked eye. (4