A unified model for gold mineralisation in accretionary …

2012-3-16 · Accretionary orogens are the sites of long-lived convergent margin tectonics, both compressional and extensional. They are also the hosts to the majority of the world''s important gold deposits. A very diverse range of deposit types occurs within accretionary orogens, commonly in close proximity in space and time to each other. These include porphyry and …

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Low-Sulfide Quartz Gold Model

2003-2-27 · The occurrence of economic gold mineralization in a deformation zone is often located in places where increased extension has occurred, such as in pull-apart basins (figures 1-3, 6, 7). Deposits occur where: 1. Strain has been anomalously high and brittle and ductile features are found. 2. Preexisting structural anisotropies [for example ...

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Folding, Faulting and Mineralization | Geology for Investors

2013-10-10 · Here are some examples from real mining company news releases: Three main fault types. Many fault systems involve a combination of movements along multiple planes. "drill intersected significant mineralization in the hanging wall zone". "hinge zone drilling encounters high grade gold mineralization". "encountered high-grade gold ...

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Orogenic gold deposits: A proposed classification in the …

1998-4-1 · The temporal, spatial and tectonic relations between the giant gold mineralization and destruction of the NCC suggest a genetic linkage. The gold mineralization between 126 and 117 Ma at Jiaodong was probably initiated at the peak of decratonization (ca. 125 Ma) of the eastern NCC. Phanerozoic craton margin orogeny also played a critical role ...

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Fault/fracture density and mineralization: a contouring …

2004-6-1 · Gold mineralization is timed as beginning early in D2 and continuing throughout the various D2 shortening phases ... As host rocks to gold deposits, specific layers within the flows appear to be more favourable for gold mineralization. Each of the units consists of alternating pillowed, massive doleritic and coarse-grained layers; ...

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Alteration and mineralization patterns in orogenic gold ...

Hydrothermal alteration and mineralization types of orogenic gold deposits display many variations depending on formation depths, types of host rock, compositions of ore fluids, spatial positions, fluid/rock ratios, and repetitive modifications during multiple fluid ...

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SUPERIOR GOLD EXTENDS HIGH-GRADE …

2022-5-31 · Results such as hole UDD25437 which intersected 58.9 g/t gold over 2.7 metres, and hole UDD25332 which intersected 17.6 g/t gold over metres indicate that …

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Folding, Faulting and Mineralization | Geology …

2013-10-10 · Here are some examples from real mining company news releases: Three main fault types. Many fault systems involve a combination of movements along multiple planes. "drill intersected significant mineralization in the …

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SUPERIOR GOLD EXTENDS HIGH-GRADE …

2022-5-31 · TORONTO, May 31, 2022 /CNW/ - Superior Gold Inc. ("Superior Gold" or the "Company") (TSXV:SGI) (OTCQX:SUPGF) is pleased to announce additional high-grade drill results from its ongoing underground ...

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A Review of Gold Mineralization in Mali | SpringerLink

2016-6-22 · The majority of gold deposits within the Birimian terranes of Mali, and the rest of West Africa, have been classified as orogenic gold mineralization (Milési et al. 1992; Olson et al. 1992; Lawrence et al. 2013a, b).Globally, orogenic gold lodes are shear-hosted deposits that developed along strike-slip fault systems linked to late-stage, non-orthogonal, orogenic crustal growth …

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Structural and Lithological Study of Gold Mineralization …

2017-9-8 · thermal fluids and formation of the respective mineralization [14]. The further comprehensive interpretation concern a process separating fresh-ly-panned gold concentrate from residual mineral inclusions. 5. Conclusions This paper improves structural and lithological study of gold mineralization in the areas of Bena and Bakolobi.

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SUPERIOR GOLD EXTENDS HIGH-GRADE …

2022-5-31 · TORONTO, May 31, 2022 /CNW/ - Superior Gold Inc. ("Superior Gold" or the "Company") (TSXV: SGI) (OTCQX: SUPGF) is pleased to announce additional high-grade drill results from its ongoing underground diamond drill program at its -owned Plutonic Gold mine in Western Australia.. Plutonic is a world-class Archean lode-style gold mineralized system …

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(PDF) Gold Mineralization

The Sukari gold mine (18.8Mt @ 2.14g/t Au) is located 15km west of the Red Sea coast in the southern central Eastern Desert of Egypt. The vein-type deposit is …

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(PDF) Epithermal gold for explorationists

2002-1-1 · Thus, there is a transition between porphyry. and epithermal gold deposits, particularly in low sulphidation systems. The term epithermal is …

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SUPERIOR GOLD EXTENDS HIGH-GRADE …

2022-5-31 · Superior Gold Inc. ("Superior Gold" or the "Company") (TSXV: SGI) (OTCQX: SUPGF) is pleased to announce additional high-grade drill results from its ongoing underground diamond drill program at its -owned Plutonic Gold mine in Western Australia.

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A Review of Granitoid-Related Gold …

2018-8-14 · Geophysical, structural and geochemical data have been used to study the relationships between magmatism, tectonics, fluid circulation and gold mineralization in eastern Cameroon, and to provide pressure-temperature …

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(PDF) Delineation potential gold mineralization …

2018-6-1 · Similarly, Yousif et al. [16] integrated aeromagnetic, Landsat ETM + and airborne radiometric data to map the distributions of the favourable areas for archean orogenic-gold mineralization and ...

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Mineralogical and Geochemical Characterization of Gold ...

(PDF) Epithermal gold for explorationists

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GOLD MINERALISATION MODELS AND THEIR USE lN …

2015-8-10 · Gold in this type of ores may occur as native gold (>10% Au) and/or electrum in quartz - carhonate veins carrying commonly pyrite, arsenopyrite, pyrrhotite and minor to trace amounts of scheelite, tellurides, stibnite, galena, sphalcrite, chalcopyrite, hematite, magnetite and anhydrite which may bc locally ahundant ...

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SUPERIOR GOLD EXTENDS HIGH-GRADE …

2021-12-13 · Results such as hole UDD24725 which intersected 20.4 g/t gold over 3.5 metres, and hole UDD24555 which intersected 11.9 g/t gold over 4.3 metres indicate significant mineralization can still be ...

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Superior Gold Extends High-Grade Mineralization in a …

2022-5-31 · The Indian Access intercepts such as 58.9 g/t gold over 2.7 metres in hole UDD25437, 17.6 g/t gold over 7.7 metres in hole UDD25332, 20.5 g/t gold over 5.1 metres in hole UDD25073, and many more significant intercepts demonstrates great potential in an under-explored area of the mine. These targets have been identified through careful re ...

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Geological controls on gold mineralization in the

2017-8-30 · deposits and controls on gold mineralization, geita greenstone belt, tanzania . 3.1. summary . 3.2. introduction: greenstone belt and gold mineralization . 3.3. previous structural work . 3.4. rock types and stratigraphy of the kukuluma terrain . 3.4.1. volcano-sedimentary units . 3.5. the history of deformation and intrusion in the central ...

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(PDF) Geologic structures associated with gold …

2021-11-1 · Gold mineralization is hosted in NE–SW trending structures. The wall rock alteration associated with gold mineralization results in a pronounced K/Th anomaly, which is …

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Regional setting and nature of gold mineralization in …

1990-1-1 · The presence of favourable host rocks for gold mineralization, similar to that noted by Groves and Phillips (1987) in Western Australia, is ev- ident for all the goldfields in East Africa. In the Musoma-Mara goldfields, where the green- stone lithology is dominated by mafic and felsic volcanics with subordinate amounts of BIF, most of the ...

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AMERICAN NEVADA ENCOUNTERS FAVOURABLE GOLD …

2003-2-26 · (PRWEB) February 26, 2003 February 24th, 2003- AMERICAN NEVADA GOLD CORP. (TSX.V:AGN) (the  Corporation ) is pleased to announce that it has been notified by American Bonanza Gold Mining Corp. (the  Operator ), its joint venture partner, that the recently completed drilling program on the Pamlico project encountered favorable mineralization.

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Recognition of gold mineralization favorability zones …

2019-9-26 · CPRM (1995) outlined potential gold exploratory targets by mapping the area, and Biondi et al. (2007) studied various magmatic-hydrothermal mineralization in Botuverá region, estimating ore reservoirs of 1 to 2 tons with Au content of 20 to 40 g/ton. Castro (1997) considered these gold mineralization occurrences to be

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Superior Gold Extends High-Grade Mineralization in …

2021-12-13 · TORONTO, Dec. 13, 2021 - Superior Gold Inc. ("Superior Gold" or the "Company") (TSXV: SGI) (OTCQX:SUPGF) is pleased to announce additional high-grade drill results from its ongoing underground diamond drill program at its -owned Plutonic Gold mine in Western Australia.. Plutonic is a world-class Archean lode-style gold mineralized system that has …

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Apex Resources Drilling Program Continues to Expand …

Apex Resources Drilling Program Continues to Expand Favourable Gold Mineralization at its Ore Hill Property February 17, 2021. February 17, 2021, Vancouver, BC., Apex Resources Inc. ("Apex") (TSXV: APX) is pleased to announce it has received final assay results for the 2019-2020 diamond drill program at its Ore Hill property in southeastern BC ...

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Geophysical implications for the exploration of concealed …

2021-1-1 · Exploration for concealed orogenic gold deposits using geophysical methods is challenging due to the presence of barren, but conductive, sulfides such as pyrrhotite in the overburden (Mir et al., 2019), and a subtle petrophysical contrast between the gold mineralization and its host rocks (Mitchinson, 2009) many cases, the orogenic gold systems contain <5 …

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High Grade Gold Mineralization Potential on PJX …

"The David Gold Zone is a typical shear hosted gold system" states Mr. John Keating, President and CEO of PJX Resources. "High grade mineralization over narrow widths seen at the David, such as 54.76 g/t over 1.0 m, occur above or proximal to gold deposits found in mining camps like Kirkland Lake and elsewhere.

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Relationship Between Orogenic Gold Mineralization and …

2018-6-7 · Thus, there remains an ambiguous relationship between the timing of gold mineralization and shearing (e.g., Deng et al., 2015, 2017; Liu et al., 2015; Yang et al., 2011). Additionally, it remains difficult to determine the source of the ore-forming fluid, since the geochemical features of the ore minerals are indiscriminate for the two ...

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AMERICAN NEVADA ENCOUNTERS FAVOURABLE GOLD …

2003-2-26 · The Pamlico gold mineralization occurs within a package of sedimentary and volcanic rocks, in silicified faults, epithermal quartz veins and silicified brecciated lithologic contacts. Future drilling will target these mineralized structures to follow up along strike and dip from these current results and previously drilled mineralized zones.

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Structural and hydrothermal alteration mapping related to …

2020-8-30 · The Gurara area (Fig. 1), situated in the Kushaka schist belt of north-central Nigeria, has been reported to be associated with gold mineralization in stream sediments (alluvial), soil sediments (eluvial), and within geologic structures and quartz veins [].Although approximately 90% of Nigeria''s total gold production is from alluvial and eluvial deposits [], it is equally …

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Age and Geologic Setting of Quartz Vein-Hosted Gold …

2016-1-1 · The gold-bearing quartz veins consist of up to four generations of quartz, each deposited from a fluid of different composition and temperature (Wilkinson et al., 1999).Gold mineralization is hosted by the second and fourth generations of quartz (Earls et al., 1996; Wilkinson et al., 1999; Parnell et al., 2000).Views have changed on the genesis and timing of …

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Archaean lode gold mineralisation in banded iron …

2006-7-12 · The Kalahari Goldridge Mine is located within the Archaean Kraaipan Greenstone Belt, about 60 km southwest of Mafikeng in the North West Province, South Africa. The ore body thickness varies from 15 to 45 m along a strike length of about 1.5 km within approximately N–S striking banded iron formation (BIF). The stratabound ore body is hosted primarily by BIF, …

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