Results 41 to 50 of about 1,709 (175)
Geofluids, Volume 2024, Issue 1, 2024.The Bou Azzer polymetallic Co‐Ni‐As±Au±Ag veins in the Central Anti‐Atlas (Morocco) are significant sulfide ores hosted by Neoproterozoic ophiolites and are associated with felsic intrusive and subvolcanic phases. We report new mineralogical and fluid inclusion data to better understand mineralization’s formation processes and fluid evolution which are
Amina Wafik +11 more
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A review of the mesothermal gold deposits of the Meguma Group, Nova Scotia, Canada
Ore Geology Reviews, 1998 Abstract The gold province of the Meguma Terrane in Nova Scotia contains several classic examples of turbidite-hosted mesothermal gold deposits. There are over 300 gold occurrences and deposits hosted by the Cambro–Ordovician Meguma group rocks in southern Nova Scotia, Canada.
R.J Ryan, P.K Smith
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Modeling singular mineralization processes due to fluid pressure fluctuations [PDF]
, 2020 Mineralization in the Earth's crust can be regarded as a singular process resulting in large amounts of mass accumulation and element enrichment over short time or space scales. The elemental concentrations modeled by fractals and multifractals show self-
Clarke, KC +4 more
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The Gounkoto Au deposit, West Africa: Constraints on ore genesis and volatile sources from petrological, fluid inclusion and stable isotope data [PDF]
, 2016 The Loulo–Gounkoto complex in the Kédougou–Kéniéba Inlier hosts three multi-million ounce orogenic gold deposits, situated along the Senegal–Mali Shear Zone.
Boyce, Adrian J. +5 more
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Gold in Britain : past, present and future [PDF]
, 2010 Britain is a country with modest gold deposits. At least six tonnes, possibly up to ten tonnes, of gold have been recovered from numerous localities in Britain.
Colman, Tim
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Genetic Classification of ore-forming processes [PDF]
, 2016 The absence of a genetic classification of ore-forming processes is the result of a rather slow-paced accumulation of knowledge in ore-forming processes, which, in its turn, could be explained by objective conditions such as the fact that during the last
Abramova, Raisa Nikolaevna +2 more
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, 2010 In relation to its size the United Kingdom (UK) is remarkably well-endowed with mineral resources as a result of its complex geological history. Their extraction and use have played an important role in the development of the UK economy over many years ...
Lusty, Paul
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A geochemical study of the Ashanti gold deposit at Obuasi, Ghana [PDF]
, 1995 The Ashanti gold deposit at Obuasi occurs in the Early Proterozoic Birimian formation. The orebodies consist of gold-sulphides disseminated in metasediments and metavolcanics, and gold-bearing quartz veins. Gold occurs mainly as native gold normally with
Kase, Katsuo +2 more
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Formation of oreshoots in mesothermal gold-quartz vein deposits: examples from Queensland, Australia
Ore Geology Reviews, 1993 Abstract Mesothermal gold/quartz vein deposits in granitoid-hosted and melange/sediment-hosted goldfields, contain oreshoots in areas of structural dilation. The environment of formation is localized at depths of 2–5 km in brittle to brittle-ductile shear zones which have stick-slip seismic movement.
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Petrologic-geochemical evidence of geologic-genetic uniformity of gold hydrothermal deposits formed in black-shale and non-shale substratum [PDF]
, 2007 The problem of gold deposits origin lying in crystal and black-shale substratum is discussed. The expediency of comparative research of all geologic-real-genetic factors of their formation, among which a significant value is retained by the geochemical ...
Kucherenko, I. V.
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