Results 81 to 90 of about 503 (177)

A Review of Carboniferous-Triassic Tectonic-Magmatic Evolution of Luang Prabang–Loei Metallogenic Belt in Laos and Thailand and Implications for Gold–Copper Mineralization

Geosciences
The Luang Prabang (Laos)–Loei (Thailand) metallogenic belt is located on the northwestern margin of the Indochina Block. It is one of the most important gold–copper metallogenic belts in Southeast Asia.
Linnan Guo, Khin Zaw, Shusheng Liu, Yongfei Yang, Fei Nie, Songyang Wu, Meifeng Shi, Chunmei Huang, Xiangfei Zhang, Huimin Liang, Xiangting Zeng, Siwei Xu   +11 more
doaj   +1 more source

Auriferous Fluid Evolution and the Role of Carbonaceous Matter in a Saddle‐Reef Gold Deposit: Dufferin Deposit, Meguma Terrane, Nova Scotia, Canada

Geochemistry, Geophysics, Geosystems
The metaturbidite‐hosted, ∼380 Ma Dufferin gold deposit, Meguma terrane, northeastern Appalachian Orogen (Nova Scotia, Canada) is an orogenic gold deposit with mineralized saddle reef‐type quartz veins hosted by metasandstones and black slates in a ...
Mitchell J. Kerr, Jacob J. Hanley, Daniel J. Kontak, Preetysha Ramlochund, Zoltán Zajacz   +4 more
doaj   +1 more source

Machine Learning-Based Delineation of Anomalous Gold Zones from Drillhole Geochemistry in a Sulphide-Hosted Orogenic Gold System

Geosciences
Early stage mineral exploration requires the reliable identification of anomalous gold zones from drillhole geochemistry in data-limited environments. This study applies a machine learning (ML) classification framework to detect anomalous gold zones (Au ≥
Gilbert Yaw Bimpong, Justina Senam Lotsu, Kwaku Boakye   +2 more
doaj   +1 more source

U-Pb SHRIMP and 40Ar/39Ar constraints on the timing of mineralization in the Paleoproterozoic Caxias orogenic gold deposit, São Luís cratonic fragment, Brazil

Brazilian Journal of Geology
Caxias is an orogenic gold deposit in the São Luís cratonic fragment, which is correlated with the Rhyacian terranes of the West-African Craton. The deposit postdates peak metamorphism (estimated at 2100 ± 15 Ma) and is hosted in a shear zone that cuts ...
Evandro Luiz Klein, Colombo Celso Gaeta Tassinari, Paulo Marcos Vasconcelos   +2 more
doaj   +1 more source

Genesis of the Xiaotazigou gold deposit in the northern margin of the north China craton: constraints from sulfur isotopes, rare earth elements, and trace elements

Frontiers in Earth Science
The Xiaotazigou gold deposit is located in the eastern section of the Chifeng–Chaoyang gold metallogenic belt on the northern margin of the North China Craton. In this study, rare earth and trace element compositions of ores and host rocks, together with
He Yuan, He Yuan, Lichun Fu, Lichun Fu, Yinzeng Bai, Qiang Wei, Zejiao Wang, Yongtao Zhao, Jingyao Sun, Jingyao Sun   +9 more
doaj   +1 more source

Geology of the Tabakoto gold deposit, Kédougou-Kéniéba Inlier, West African Craton, Mali

BSGF - Earth Sciences Bulletin
The Tabakoto gold deposit is part of the highly endowed west-Malian gold belt, which hosts several world-class deposits. Located in the Paleoproterozoic Kédougou-Kéniéba Inlier (KKI) of the West African Craton (WAC), the deposit is contained in Birimian ...
Diallo Mahamadou, Salvi Stefano, Baratoux Lenka, Béziat Didier, Vanderhaeghe Olivier, Labou Ibrahima, Baratoux David, Ly Saïdou   +7 more
doaj   +1 more source

Gold metallogeny of the northern Capricorn Orogen [PDF]

ASEG Extended Abstracts, 2019
Imogen Fielding, Simon Johnson
openaire   +1 more source

Structural Architecture of the Cenozoic Kallianos (Post‐?)Orogenic Vein‐Hosted Au‐Ag‐Te Deposit and Its Relationship to the North Cycladic Detachment System, Greece

Geochemistry, Geophysics, Geosystems
The Kallianos Au‐Ag‐Te deposit is a Cenozoic orogenic‐style deposit on Evia, hosted in the Cycladic Blueschist Unit. Integrated field observations and isotopic data illustrate a connection between the structural architecture that hosts mineralization in ...
L. Hamel, T. A. Ducharme, D. A. Schneider, B. Grasemann   +3 more
doaj   +1 more source

Late Mesozoic Tectonic‐Magmatic Evolution of the Tongbai Orogen, Central China: Implications for Granites Petrogenesis and Gold Mineralization

Geochemistry, Geophysics, Geosystems
Late Mesozoic granitoids are widely distributed throughout the East Qinling‐Tongbai‐Dabie orogenic belt and its periphery, while large‐scale gold deposits during the same period were primarily found in the Xiaoqinling‐Xiong'ershan area, west of the ...
Lei Ai, Xianquan Ping, Jianping Zheng, Yuping Su, Qiang Ma, Xianbin Shi, Tianci Huang   +6 more
doaj   +1 more source

Exploring gold mineralization in altered ultramafic rocks in south Abu Marawat, Eastern Desert, Egypt. [PDF]

Sci Rep, 2023
Eldougdoug A, Abdelazeem M, Gobashy M, Abdelwahed M, Abd El-Rahman Y, Abdelhalim A, Said S.   +6 more
europepmc   +1 more source