Past and possible future of the Lahóca mine, Recsk, Hungary - a historical review [PDF]
Epitermálne zlatonosné zrudnenia sa viau k takým hydrotermálnym systémom, v ktorých sa minerály, obsahujúce zlato, objavujú v hĺbke 1-2 km pod povrchom.
Seres-Hartai Éva
core
Abstract The central Inner Mongolia district forms one of the most important metallogenic provinces in China, because the district has been influenced by repeated distinct tectonomagmatic activity. The genetic relationships and spatial–temporal evolution of ancient tectonism and associated geologic structures and metallogeny are discussed in this ...
Hong Tao Zhang+2 more
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Carbonate alteration of ophiolitic rocks in the Arabian–Nubian Shield of Egypt: sources and compositions of the carbonating fluid and implications for the formation of Au deposits [PDF]
Ultramafic portions of ophiolitic fragments in the Arabian–Nubian Shield (ANS) show pervasive carbonate alteration forming various degrees of carbonated serpentinites and listvenitic rocks.
Azer, Mokhles K.+9 more
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Formation of oreshoots in mesothermal gold-quartz vein deposits: examples from Queensland, Australia
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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Pop-down tectonics, fluid channelling and ore deposits within ancient hot orogens
International audienceMany Archaean and Paleoproterozoic deformation zones, often rich in ore resources, show particular structural patterns in particularmarked by regional vertical stretch.
Boulvais, Philippe+3 more
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Gold deposit type and implication for exploration in the Abiete-Toko Gold District, South Cameroon: constraint from morphology and microchemistry of alluvial gold grains. [PDF]
Kouankap Nono GD+6 more
europepmc +1 more source
Structure of geochemical field of mesothermal gold ore deposit Zapadnoe (Lensk ore area)
The described research is now becoming even more relevant due to the efficiency improvement of expected gold ore exploration based on sophisticated geochemical information processing and interpretation methods. The main aim of the study is to investigate geochemical zoning and to identify anomalous geochemical deposit structure within Zapadnoe gold ore
Roman Yurievich Gavrilov, Danil Khryapin
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The geochemistry, origin, and hydrothermal alteration mapping associated with the gold-bearing quartz veins at Hamash district, South Eastern Desert, Egypt. [PDF]
Abdel-Rahman AM+5 more
europepmc +1 more source
Numerical investigation of transient hydrothermal processes around intrusions: heat-transfer and fluid-circulation controlled mineralization patterns. [PDF]
International audienceNew insights on the circulation of fluids around magmatic intrusions have been obtained through coupled hydrothermal numerical modelling that takes into account i) a continuous variation of permeability with depth, ii) the period of
Branquet, Yannick+3 more
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A spatial reconnaissance survey for gold exploration in a schist belt. [PDF]
Tende AW+5 more
europepmc +1 more source