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Characterization of paleodrainages in desert regions of Saudi Arabia multisatellite images with field based study. [PDF]

Sci Rep
Al Saud MM.
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Biomineralized gold nanoparticles along with endophytic bacterial taxa in needles of Norway spruce (Picea abies). [PDF]

Environ Microbiome
Lehosmaa K, Wäli PR, Sutinen A, Koskimäki JJ, Middleton M, Ahonen SHK, Männistö M, Pirttilä AM, Sutinen R.   +8 more
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A metasedimentary source of gold in Archean orogenic gold deposits

Geology, 2021
AbstractThe sources of metals enriched in Archean orogenic gold deposits have long been debated. Metasedimentary rocks, which are generally accepted as the main metal source in Phanerozoic deposits, are less abundant in Archean greenstone belts and commonly discounted as a viable metal source for Archean deposits.
Iain K. Pitcairn, Nikolaos Leventis, Georges Beaudoin, Stephane Faure, Carl Guilmette, Benoît Dubé   +5 more
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Concepts and revised models for Phanerozoic orogenic gold deposits

Geological Society, London, Special Publications, 2022
Abstract Existing published models for orogenic gold deposits (OGDs) do not adequately describe or explain most deposits of Phanerozoic age, and there are numerous reasons why Phanerozoic OGDs might differ significantly from older deposits.
J. K. Mortensen, D. Craw, D. J. MacKenzie   +2 more
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Supergene gold mobility in orogenic gold deposits, Otago Schist, New Zealand

New Zealand Journal of Geology and Geophysics, 2015
Gold has been chemically mobilised by groundwater from host sulphide minerals in orogenic gold deposits of Otago. Mobilisation occurred near the Cenozoic Otago Schist erosional surface beneath a sedimentary cover. Initial Au mobilisation, on a scale of micrometres, occurred when solid solution and microparticulate gold in pyrite and arsenopyrite grains
D Craw, D MacKenzie, P Grieve
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Chapter 38: Hydrothermal Gold Deposition in Epithermal, Carlin, and Orogenic Deposits

2020
Abstract Epithermal, Carlin, and orogenic Au deposits form in diverse geologic settings and over a wide range of depths, where Au precipitates from hydrothermal fluids in response to various physical and chemical processes. The compositions of Au-bearing sulfidic hydrothermal solutions across all three deposit types, however, are broadly
Stuart F. Simmons, Benjamin M. Tutolo, Shaun L.L. Barker, Richard J. Goldfarb, François Robert   +4 more
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Geology of the Lapa Orogenic Gold Deposit

2017
Abstract The Cadillac mining camp is known for its numerous, but relatively small, orogenic gold deposits, which are spatially associated with the Larder Lake-Cadillac fault zone. The Lapa deposit, with a total endowment of 36 t Au (1.15 Moz), represents the largest gold deposit of the Cadillac mining camp.
Patrick Mercier-Langevin, Marjorie Simard, Richard Dubuc, Jocelyn Côté, Pierre Doucet, Réal Daigneault, Damien Gaboury   +6 more
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Chapter 8 Orogenic Gold Deposits of China

2019
Abstract China produces about 450 t Au per year and has government stated in-ground reserves of approximately 12,000 t Au. Orogenic gold, or gold deposits in metamorphic rocks, and associated placer deposits compose about 65 to 75% of this endowment, with lodes existing as structurally hosted vein and/or disseminated orebodies.
Richard Goldfarb, Kunfeng Qiu, Jun Deng, Yanjing Chen, Liqiang Yang   +4 more
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Introduction: Macraes Mine as an Orogenic Gold Deposit

2016
Orogenic gold deposits are typically dominated by quartz veins in faults. Historic mining at Macraes focused on scattered small quartz veins, with only minor Au production. Modern exploration and mining has developed from these small beginnings into a world class mine operation which has produced >4 million ounces of Au from a total resource exceeding ...
Dave Craw, Doug MacKenzie
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Metabasalts as sources of metals in orogenic gold deposits

Mineralium Deposita, 2014
Although metabasaltic rocks have been suggested to be important source rocks for orogenic gold deposits, the mobility of Au and related elements (As, Sb, Se, and Hg) from these rocks during alteration and metamorphism is poorly constrained. We investigate the effects of increasing metamorphic grade on the concentrations of Au and related elements in a ...
Pitcairn, Iain K., Craw, Dave, Teagle, Damon A.H.   +2 more
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