Results 101 to 110 of about 1,165,786 (215)

Redox-controlled generation of the giant porphyry Cu-Au deposit at Pulang, southwest China

, 2019
Some porphyry Cu-Au deposits with relatively reduced ore assemblages, characterized by high hydrothermal pyrrhotite contents and a lack of primary hematite and magnetite, are generally considered to be associated with reduced I-type granitoids.
Yang, Zhiming, Lu, Yongjun, Sun, Maoyu, Li, Weikai, Cao, Kang   +4 more
core   +1 more source

Sulfide saturation during the magmatic evolution of porphyry Cu ± Au systems

, 2016
Why some porphyry deposits are Cu-only whilst others are Cu-Au or even Cu-Au-Pd remains unresolved but sulfide saturation during the magmatic evolution of porphyry systems is emerging as an important control of magma fertility with respect to chalcophile
Campbell, Ian, Park, Jung-Woo, Cocker, Helen   +2 more
core  

Magmatic Controls on Metal Endowments of Porphyry Cu-Au Deposits

, 2021
Abstract This overview illustrates the processes controlling magma fertility in the formation of porphyry Cu-Au deposits. Magma fertility means all magmatic parameters (e.g., metal and volatile contents, magma and fluid volumes) that might result in higher amounts of metals, which are exsolvable from the magma. Mantle source processes
openaire   +2 more sources

Table 2. Zircon Hf-O data of the porphyries from the Duolong porphyry Cu-Au deposit in the Bangongco copper belt, central Tibet

, 2013
The Duolong porphyry Cu-Au deposit (5.4Mt at 0.72% Cu, 41t at 0.23g/t Au), which is related to the granodiorite porphyry and the quartz-diorite porphyry from the Bangongco copper belt in central Tibet, formed in a continental arc setting.
Qin, Ke-Zhang, Qin, K., Jun-Xing Zhao (333128), Zhao, Jun-Xing, Chen, Lei, Cao, Mingjian, Jinxiang Li (7992686), Mingjian Cao (7992689), Xiao, Bo, Guang-Ming Li (1694866), Bo Xiao (347938), Xiao, B., Li, G., Li, Jinxiang, Chen, L., Li, J., Zhao, J., Lei Chen (54296), Li, Guang-Ming, Ke-Zhang Qin (2883977)   +19 more
core   +1 more source

Major elements geochemistry of chlorite in different ore deposits and its genesis and exploration significance: a case study from Naruo porphyry Cu deposit in Duolong ore district, Tibet

Frontiers in Earth Science
Chlorite is present extensively in many types of deposits. The mechanism underlying the chemical variations in chlorite remains unclear. The Naruo porphyry deposit is a giant copper porphyry deposit in the Duolong ore district of Tibet.
Faqiao Li, Juxing Tang, Yang Song, She Li, Pan Tang, Haifeng Li, Huanhuan Yang, Qin Wang, Yongqiang Wang, Zongzhui Danzeng, Yanbo Li, Jianli Li, Hongwei Li, Yujie Dong   +13 more
doaj   +1 more source

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

Hornblendite in the Lower Crust: A Possible Source for Porphyry Cu Deposits

Geochemistry, Geophysics, Geosystems
Abstract Lower crustal sulfide‐bearing Cu‐rich cumulates, mainly occurring as hornblendite, have been proposed as a critical source component for the development of giant porphyry Cu deposits (PCDs); however, their mineralogical and geochemical nature remain elusive.
Guangxu Li, Lingsen Zeng, Li‐E. Gao, Lilong Yan, Haitao Wang, Linghao Zhao   +5 more
openaire   +1 more source

Grade distribution of the giant Ok Tedi Cu-Au deposit, Papau New Guinea

, 2013
The Ok Tedi porphyry Cu-Au deposit in Papua New Guinea is a world-class mineral deposit. In its pre-mining stage, it contained 5.5 Mt Cu and 18.1 Moz Au; skarn accounts for ~80% of the current 1.9 Mt Cu and 7.7 Moz Au in total resources.
Tomkins, Andrew G., Van Dongen, Michiel, Weinberg, Roberto F.   +2 more
core   +1 more source

Magmatic-hydrothermal evolution and post-ore modifications of the Halilağa porphyry cu-au deposit, NW Turkey

, 2017
The Biga Peninsula of northwest Turkey is an emerging copper-gold province characterized by numerous epithermal and porphyry-type deposits and prospects associated with Eocene to Oligocene calc-alkaline post-collisional magmatism.
Brunetti, Paula
core   +1 more source

Divergent Paradigms of Porphyry Cu Deposits in Subduction and Collision Zones

The prevailing view suggests that the formation of porphyry Cu deposits involves differentiation of water-rich, metal-bearing juvenile magmas, with subduction of oceanic slabs supplying the necessary volatiles. However, the occurrence of significant porphyry Cu deposits in continental collision zones, where such volatile sources are absent, challenges ...
Zixuan Wang, Yuanchuan Zheng, Massimo Chiaradia, Bo Xu, Hongda Hao, Zengqian Hou   +5 more
openaire   +1 more source