Results 151 to 160 of about 58,223 (220)

A Refined Rotation Forest-Based Ensemble Classifier for Lithological Mapping with ZY1-02D Hyperspectral Remote Sensing Imagery. [PDF]

Sensors (Basel)
Xi J, Gao H, Zang W, Zhao X, Liu M, Li B.   +5 more
europepmc   +1 more source

Evolution of Pyrite Compositions at the Sizhuang Gold Deposit, Jiaodong Peninsula, Eastern China: Implications for the Genesis of Jiaodong-Type Orogenic Gold Mineralization

Minerals (Basel, Switzerland), 2021
Gold deposits in the Jiaodong Peninsula represent a primary gold resource in China and mostly exhibit similar ore-forming features related to sericite-quartz-pyrite alteration and other controls from (micro-)structural deformation.
Xiancheng Mao, , Zhankun Liu
exaly   +2 more sources

Two Epochs of Mineralization of Orogenic Gold Deposit in the East Kunlun Orogenic Belt: Constraints from Monazite U–Pb Age, In Situ Sulfide Trace Elements and Sulfur Isotopes in Wulonggou Gold Field

Minerals (Basel, Switzerland), 2022
The Wulonggou Gold Field is one of the giant gold fields in the East Kunlun Orogenic Belt, northwestern China. Previous studies mainly focused on elementary mineral isotopic studies, fluid inclusions, and geological features in the Wulonggou Gold Field ...
Qingdong Zeng, Hongrui Fan, Xinghui Li   +2 more
exaly   +2 more sources

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Early orogenic gold mineralization event in the West Qinling related to closure of the Paleo-Tethys Ocean – Constraints from the Ludousou gold deposit, central China

Ore Geology Reviews, 2020
The West Qinling Orogen experienced a complex orogenic history and developed related orogenic gold deposits. Most known orogenic gold deposits in West Qinling are hosted by brittle to ductile shear zones and mainly formed during 220–190 Ma.
Kun-Feng Qiu, Hao-Cheng Yu
exaly   +2 more sources

A TRIASSIC OROGENIC GOLD MINERALIZATION EVENT IN THE PALEOPROTEROZOIC METAMORPHIC ROCKS: EVIDENCE FROM TWO TYPES OF RUTILE IN THE BAIYUN GOLD DEPOSIT, LIAODONG PENINSULA, NORTH CHINA CRATON

Economic Geology, 2022
Rutile grains often occur in different types of gold deposits, and their U-Pb ages have been widely used to determine the formation time of gold mineralization. However, the origin of rutile grains in the gold deposits remains controversial.
Jiahao Zheng, Bin Chen, Shuaijie Liu, Chuang Bao   +3 more
semanticscholar   +1 more source

Pyrite as a Microtextural and Geochemical Tracer of Ore-Forming Processes, Central Zone Orogenic Gold Deposit, Gabgaba District, Sudan

Economic Geology, 2023
Gold deposition in structurally controlled deposits is triggered by changes in the mineralizing fluid conditions. Recent research has demonstrated that in deposits with a well-established paragenesis, the processes that control the ore-forming fluid ...
Célestine Berthier, Julien Perret, Aurélien Eglinger, A. André-Mayer, J. Feneyrol, A. Voinot, Y. Teitler, Rémi Bosc   +7 more
semanticscholar   +1 more source

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
openaire   +1 more source

FAULT-INDUCED GOLD SATURATION OF A SINGLE AURIFEROUS FLUID IS A KEY PROCESS FOR OROGENIC GOLD DEPOSIT FORMATION

Economic Geology, 2022
In orogenic gold deposits, the mechanism by which a hydrothermal fluid precipitates gold in laminated quartz veins remains elusive. The Kanowna Belle deposit hosts gold mineralization in structurally controlled quartz-pyrite laminated veins that cut ...
Dennis Sugiono, C. Laflamme, N. Thébaud, L. Martin, D. Savard, M. Fiorentini   +5 more
semanticscholar   +1 more source

The Changshagou gold deposit, Eastern Tianshan, NW China: Orogenic gold mineralization overprinting a Porphyry gold occurrence

Geological Society Special Publication, 2021
The temporal-spatial relationships of porphyry and orogenic gold mineralization in the Eastern Tianshan Orogenic Belt are ambiguous. The newly-discovered Changshagou deposit in this belt contains both porphyry and orogenic gold mineralization, which are ...
Yihao Liu, Yun Zhao, C. Xue, Liang Yu, H. Chu, Xiaobo Zhao   +5 more
semanticscholar   +1 more source

Tellurium, magmatic fluids and orogenic gold: An early magmatic fluid pulse at Cononish gold deposit, Scotland

Ore Geology Reviews, 2018
Significant tellurium enrichment occurs in many orogenic gold deposits but the factors causing this are little understood; some authors suggest this demands a magmatic input whereas others suggest it need not.
Gawen Jenkin, Adrian Boyce
exaly   +2 more sources