Fluid Evolution of the Zhunuo Porphyry Cu-Mo Deposit in Gangdese Tract, Tibet, China: A Fluid-inclusion Investigation

2021 ◽  
pp. 104484
Author(s):  
Jie Dai ◽  
I-Ming Chou ◽  
Xiaodong Pan ◽  
Jun Ding ◽  
Yong Huang ◽  
...  
Keyword(s):  
Fluid Inclusion ◽  
Porphyry Cu ◽  
Fluid Evolution

Fluid evolution of the Jiawula Ag–Pb–Zn deposit, Inner Mongolia: mineralogical, fluid inclusion, and stable isotopic evidence

2012 ◽  
Vol 55 (2) ◽  
pp. 204-224 ◽  
Author(s):  
De-Gao Zhai ◽  
Jia-Jun Liu ◽  
Jian-Ping Wang ◽  
Mei-Juan Yao ◽  
Sheng-Hua Wu ◽  
...  
Keyword(s):  
Fluid Inclusion ◽  
Inner Mongolia ◽  
Isotopic Evidence ◽  
Fluid Evolution ◽  
Stable Isotopic

scholarly journals Fluid Evolution of Fuzishan Skarn Cu-Mo Deposit from the Edong District in the Middle-Lower Yangtze River Metallogenic Belt of China: Evidence from Petrography, Mineral Assemblages, and Fluid Inclusions

Geofluids ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-25
Author(s):  
Lu Zhang ◽  
Shao-Yong Jiang ◽  
Suo-Fei Xiong ◽  
Deng-Fei Duan
Keyword(s):  
Fluid Inclusion ◽  
Fluid Inclusions ◽  
Yangtze River ◽  
Homogenization Temperature ◽  
Lithostatic Pressure ◽  
Lower Permian ◽  
Fluid Evolution ◽  
Metallogenic Belt ◽  
Lower Yangtze ◽  
Vapor Liquid

The Fuzishan Cu-Mo deposit is located in the Edong district of the Middle-Lower Yangtze River Metallogenic Belt, China. The orebodies mainly occurred as lenticular and bedded shapes in the skarn zone between the Lower Permian Qixia Formation carbonate rocks and the quartz diorite. Four paragenetic stages have been recognized based on petrographic observations: (1) prograde skarn stage, (2) retrograde skarn stage, (3) quartz-sulfide stage, and (4) carbonate stage. Six fluid inclusion types were recognized: S1(vapor + liquid + halite ± other daughter minerals), S2(vapor + liquid + daughter minerals except halite), LV(rich liquid + vapor), VL(rich vapor + liquid), V (vapor), and L (liquid) types. Fluid inclusion studies show distinct variations in composition, final homogenization temperature, and salinity in four stages. Daughter minerals of the primary fluid inclusions include chalcopyrite, molybdenite, hematite, anhydrite, calcite, and halite in the prograde skarn stage and hematite, calcite, and sulfide (?) in the retrograde skarn stage. No daughter minerals occurred in the quartz-sulfide and carbonate stages. Final homogenization temperatures recorded in these stages are from 405 to >550°C, from 212 to 498°C, from 150 to 485°C, and from 89 to 223°C, respectively, while salinities are from 3.7 to 42.5, from 2.6 to 18.5, from 2.2 to 17.9, and from 0.2 to 11.5 wt.% NaCl equivalent, respectively. The coexisting VLand S1type fluid inclusions show similar homogenization temperature of 550 to about 650°C in the prograde skarn stage, indicating that immiscibility occurred at lithostatic pressure of 700 bars to perhaps 1000 bars, corresponding to a depth of 2.6 km to about 3.7 km. The coeval VLand LVtypes fluid inclusions with homogenization temperature of 350 to 400°C in the late retrograde skarn and quartz-sulfide stages suggest that boiling occurred under hydrostatic pressure of 150 to 280 bars, equivalent to a depth of 1.5 to 2.8 km. Mo mineralization in the retrograde stage predated Cu mineralization which mainly occurred in the quartz-sulfide stage. Fluid compositions indicate that ore-forming fluid has highfO2and rich Cu and Mo concentration in the early stage, while relatively lowerfO2and poor Cu and Mo concentration in the middle to late stages. Microthermometric data show a decreasing trend in temperature and salinity in the fluid evolution process. Decreasing temperature and boiling event may be the main factors that control the ore precipitation.

Stable isotopes and fluid inclusion constraints on the fluid evolution in the Bacaba and Castanha iron oxide-copper-gold deposits, Carajás Mineral Province, Brazil

2020 ◽  
Vol 126 ◽  
pp. 103738 ◽  
Author(s):  
André Luiz Silva Pestilho ◽  
Lena Virgínia Soares Monteiro ◽  
Gustavo Henrique Coelho de Melo ◽  
Carolina PenteadoNatividade Moreto ◽  
Caetano Juliani ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Iron Oxide ◽  
Fluid Inclusion ◽  
Gold Deposits ◽  
Carajás Mineral Province ◽  
Fluid Evolution ◽  
Copper Gold

Fluid inclusion re-equilibration and P-T-X constraints on fluid evolution in the Ashanti gold deposit, Ghana

1992 ◽  
Vol 4 (5) ◽  
pp. 1017-1034 ◽  
Author(s):  
Michael O. Schwartz ◽  
Thomas Oberthür ◽  
Joe Amanor ◽  
Will A. Gyapong
Keyword(s):  
Fluid Inclusion ◽  
Gold Deposit ◽  
Fluid Evolution

The superlarge Malmyzh porphyry Cu-Au deposit, Sikhote-Alin, eastern Russia: Igneous geochemistry, hydrothermal alteration, mineralization, and fluid inclusion characteristics

2019 ◽  
Vol 113 ◽  
pp. 103112 ◽  
Author(s):  
Serguei G. Soloviev ◽  
Sergey G. Kryazhev ◽  
Svetlana S. Dvurechenskaya ◽  
Vladislav E. Vasyukov ◽  
Dmitry A. Shumilin ◽  
...  
Keyword(s):  
Fluid Inclusion ◽  
Hydrothermal Alteration ◽  
Sikhote Alin ◽  
Porphyry Cu ◽  
Eastern Russia ◽  
Igneous Geochemistry

Hydrothermal alteration and fluid inclusion study of the Lower Cretaceous porphyry Cu–Au deposit of Tiámaro, Michoacán, Mexico

2006 ◽  
Vol 89 (1-3) ◽  
pp. 124-128 ◽  
Author(s):  
Carlos Garza-González ◽  
Antoni Camprubí ◽  
Eduardo González-Partida ◽  
Germán Arriaga-García ◽  
Fernando Rosique-Naranjo
Keyword(s):  
Fluid Inclusion ◽  
Hydrothermal Alteration ◽  
Lower Cretaceous ◽  
Fluid Inclusion Study ◽  
Porphyry Cu ◽  
Inclusion Study
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