Results 191 to 200 of about 6,885 (228)

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
openaire   +1 more source

Orogenic Gold Mineralization in the Qolqoleh Deposit, Northwestern Iran

Resource Geology, 2007
AbstractThe Qolqoleh gold deposit is located in the northwestern part of the Sanandai‐Sirjan Zone, northwest of Iran. Gold mineralization in the Qolqoleh deposit is almost entirely confined to a series of steeply dipping ductile–brittle shear zones generated during Late Cretaceous–Tertiary continental collision between the Afro‐Arabian and the Iranian ...
Farhang Aliyari, Ebrahim Rastad, Hou Zengqian   +2 more
openaire   +1 more source

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
openaire   +1 more source

Structural controls on orogenic gold deposits

Acta Petrologica Sinica, 2023
Lin YANG, QingFei WANG, ShiYu ZHAO, HuaJian LI, HeSen ZHAO, ChaoYi DONG, XueFei LIU, Jun DENG   +7 more
openaire   +1 more source

Gold mobility in Archean metasedimentary belts: Implications for orogenic gold deposits

Geology
Abstract The southern Superior Province (Canada) comprises large metasedimentary belts, such as the Pontiac and Quetico subprovinces, adjacent to Au-endowed greenstone belts. The Pontiac sedimentary rocks have been proposed as a source of Au for the highly endowed southern Abitibi greenstone belt.
Diogo Ribeiro, Bertrand Rottier, Antoine Godet, Georges Beaudoin, Clifford G.C. Patten, Carl Guilmette, Adrian G. Rehm, Isaac S. Malta, Jochen Kolb, Douglas K. Tinkham, Iain Pitcairn   +10 more
openaire   +1 more source

Phapon gold deposit, Laos: A unique orogenic gold deposit with calcite as the main gold-bearing mineral

Goldschmidt2022 abstracts, 2022
Linnan Guo, Yanwen Tang, Zhiwei Han
openaire   +1 more source

Baolun Gold Deposit, An Orogenic Gold Deposit in Hainan Province, South China

Acta Geologica Sinica - English Edition, 2014
Maozhou HOU, Deru XU, Qiang SHAN, Chuanjun WU, Liangliang YU   +4 more
openaire   +1 more source

In situ apatite U-Pb dating for the ophiolite-hosted Nianzha orogenic gold deposit, Southern Tibet

Ore Geology Reviews, 2022
Hongjun Chen, Xiaoming Sun, Dengfeng Li   +2 more
exaly  

Intrusion-related orogenic gold deposit in the East Kunlun belt, NW China: A multiproxy investigation

Ore Geology Reviews, 2021
Jinjian Wu, Qingdong Zeng, M Santosh
exaly  

Genesis of the Heihaibei gold deposit in the East Kunlun Orogenic Belt, China: Evidence from in situ trace elements of gold-bearing sulfides and stable isotopes

Ore Geology Reviews, 2023
Feng Yuan
exaly