Results 1 to 10 of about 9,544 (227)

Fluid evolution of the Tongkuangyu porphyry copper deposit in the Zhongtiaoshan region: Evidence from fluid inclusions [PDF]

Economic Geology, 2014
AbstractThe Tongkuangyu copper deposit in the Zhongtiaoshan region, southern Trans-North China orogen, is hosted by a poorly constrained sequence of Paleoproterozoic volcano-sedimentary (quartz-sericite schist and biotite schist) and granitic rocks that have been metamorphosed to lower greenschist facies and variably deformed.
Bao, Zhiwei, Jiang, Yuhang, Li, Ningbo, Niu, Hecai, Shan, Qiang, Yang, Wubin   +5 more
core   +3 more sources

Oxidized sulfur-rich arc magmas formed porphyry Cu deposits by 1.88 Ga [PDF]

Nature Communications, 2021
Tectonomagmatic conditions in the Precambrian were hypothesized to be unfavorable for porphyry Cu deposit formation. Here, the authors show that metallogenic processes typify Phanerozoic porphyry Cu deposits operated by ~1.88 Ga, reflecting modification ...
Xuyang Meng, Jackie M. Kleinsasser, Jeremy P. Richards, Simon R. Tapster, Pedro J. Jugo, Adam C. Simon, Daniel J. Kontak, Laurence Robb, Grant M. Bybee, Jeffrey H. Marsh, Richard A. Stern   +10 more
doaj   +4 more sources

Constraints on ore vectoring from geochemical fingerprints of porphyry style pyrite [PDF]

Scientific Reports
The sulfur isotope compositions of three generations of pyrite originated from skarns, stockwork, and late-stage, post-hydrothermal veins from three various zones of the porphyry style Myszków Mo–Cu–W deposit (center, circum-deposit, and periphery) were ...
Beata Naglik, Artur Sosnal, Magdalena Dumańska-Słowik, Tomasz Toboła, Dimitrina Dimitrova, Ryszard Habryn, Paweł Derkowski, Zbigniew Czupyt, Maciej Woszczyna, Marek Markowiak, Jaroslav Pršek   +10 more
doaj   +2 more sources

Constraints of magmatic oxidation state on mineralization in the Beiya alkali-rich porphyry gold deposit, western Yunnan, China

Solid Earth Sciences, 2017
The Beiya gold deposit is the biggest Cenozoic gold deposit in the Jinshajiang-Ailaoshan alkali-rich porphyry metallogenic belt within the Sanjiang region. Porphyry intrusions are widely distributed at the Beiya deposit. In this study, we investigate the
Xue-Quan Gao, Wen-Yan He, Xue Gao, Xin-Shang Bao, Zhen Yang   +4 more
doaj   +2 more sources

Contrasting mineralized and barren porphyries in the Zhongdian Arc, insights from biotite and apatite compositions and halogen fugacity [PDF]

Scientific Reports
Copper mineralization in the Pulang (PL) porphyry deposit, Langdu (LD) porphyry-skarn deposit and Songnuo (SN) porphyry prospect in northwestern Yunnan, China, is closely related to the emplacement of quartz monzonite porphyries.
Yanning Pan, Guochen Dong, Toshiaki Tsunogae, Peng Wang, Xuefeng Li, Pengsheng Dong   +5 more
doaj   +2 more sources

Determination of oxygen fugacity from ore-bearing magma responsible for Gazu copper mineralization: Cerium data in zircon mineral [PDF]

پترولوژی, 2021
Porphyry Cu deposits are typically oxidized. Oxygen fugacity (fO2) is a key factor, which controls the formation of porphyry Cu deposits. Trace element compositions of Cretaceous magmatic zircon grains (65.9-65.1 Ma) were determined from ore-bearing ...
Alireza Almasi, amir mahdavi, Jingwen Mao   +2 more
doaj   +1 more source

Supergiant porphyry Cu deposits are failed large eruptions [PDF]

, 2021
Abstract Porphyry copper deposits, the principal natural source of Cu and Mo, form at convergent margins. Copper is precipitated from fluids associated with cooling magmas that have formed in the mantle and evolved at variably deep crustal levels, before raising close to the surface where they exsolve fluids and copper.
Massimo Chiaradia, Luca Caricchi
openaire   +1 more source

Fahlores from Porphyry Cu–(Mo) Deposits of the Urals

Geology of Ore Deposits, 2022
The paper describes chemistry of tetrahedrite group minerals from three porphyry deposits of the Urals: Mikheevskoe and Tomino porphyry copper deposits on the South Urals and Talitsa Mo porphyry deposit on the Middle Urals. In the deposits studied tetrahedrite group minerals deposited either with late mineral assemblages of the porphyry stage or within
O.Yu. Plotinskaya, E.V. Kovalchuk
openaire   +2 more sources

Igneous breccia system of the Shand porphyry Cu-Mo deposit, Northern Mongolia

Mongolian Geoscientist, 2022
The Shand Cu-Mo deposit is located in the Orkhon-Selenge depression, Northern Mongolia. It lies near the Erdenetiin Ovoo porphyry Cu-Mo deposit, which together define one of Northern Mongolian’s most economically significant metallogenic belts.
Bayaraa Ganbat, Dashdorjgochoo Odgerel, Dorjyunden Altankhuyag, Dorjgochoo Sanchir, Chikalov Altanzul, Gurdorj Azjargal   +5 more
doaj   +1 more source

Geology and mineralization of the Duobaoshan supergiant porphyry Cu-Au-Mo-Ag deposit (2.36 Mt) in Heilongjiang Province, China: A review

China Geology, 2023
The reserves of the Duobaoshan porphyry Cu-Au-Mo-Ag deposit (also referred to as the Duobaoshan porphyry Cu deposit) ranks first among the copper deposits in China and 33rd among the porphyry copper deposits in the world.
Sen Zhang, Nan Ju, Guo-bin Zhang, Yuan-dong Zhao, Yun-sheng Ren, Bao-shan Liu, Hui Wang, Rong-rong Guo, Qun Yang, Zhen-ming Sun, Feng-ming Xu, Ke-yong Wang, Yu-jie Hao   +12 more
doaj   +1 more source