Results 51 to 60 of about 1,650 (170)

Past and possible future of the Lahóca mine, Recsk, Hungary - a historical review [PDF]

open access: yes, 1998
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  

Regional geologic setting and metallogenesis of central Inner Mongolia, China: guides for exploration of mesothermal gold deposits

open access: yesOre Geology Reviews, 1999
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
openaire   +2 more sources

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]

open access: yes, 2016
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
core   +2 more sources

Formation of oreshoots in mesothermal gold-quartz vein deposits: examples from Queensland, Australia

open access: yesOre 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.
openaire   +2 more sources

Pop-down tectonics, fluid channelling and ore deposits within ancient hot orogens

open access: yes, 2014
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
core   +3 more sources

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]

open access: yesHeliyon, 2021
Kouankap Nono GD   +6 more
europepmc   +1 more source

Structure of geochemical field of mesothermal gold ore deposit Zapadnoe (Lensk ore area)

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
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
openaire   +2 more sources

Numerical investigation of transient hydrothermal processes around intrusions: heat-transfer and fluid-circulation controlled mineralization patterns. [PDF]

open access: yes, 2009
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
core   +3 more sources

A spatial reconnaissance survey for gold exploration in a schist belt. [PDF]

open access: yesHeliyon, 2021
Tende AW   +5 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy