文献类型：期刊文献

英文题名：Genetic relationship between hydrocarbon system evolution and Carlin-type gold mineralization: Insights from Re-Os pyrobitumen and pyrite geochronology in the Nanpanjiang Basin, South China

作者：Ge, Xiang Selby, David Liu, Junjie Chen, Youzhi Cheng, Guofan Shen, Chuanbo

第一作者：Ge, Xiang

通信作者：Shen, CB[1]

机构：[1]China Univ Geosci, Key Lab Tecton & Petr Resources, Minist Educ, Wuhan 430074, Peoples R China;[2]Univ Durham, Dept Earth Sci, Durham DH1 3LE, England;[3]China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China;[4]Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China;[5]Guizhou Inst Technol, Sch Resources & Environm Engn, Guiyang 550003, Peoples R China

第一机构：China Univ Geosci, Key Lab Tecton & Petr Resources, Minist Educ, Wuhan 430074, Peoples R China

通信机构：corresponding author), China Univ Geosci, Key Lab Tecton & Petr Resources, Minist Educ, Wuhan 430074, Peoples R China.

年份：2021

卷号：559

外文期刊名：CHEMICAL GEOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000600546500021)】；

基金：This work was supported by the National Natural Science Foundation of China (No.41802168, 41672140, 41372140), the PetroChina Innovation Foundation (No.2016D-5007-0103), the Program of Introducing Talents of Discipline to Universities (No.B14031), the Outstanding Youth Funding of Natural Science Foundation of Hubei Province (No. 2016CFA055), and the Fundamental Research Fund for the Central Universities, China University of Geosciences (Wuhan, No. CUG180617, CUGCJ1820, CUGCJ1712), and Open Topic Fund from Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education (TPR2018-11). Science and technology project of Guizhou province (No. [2018]1065). DS acknowledges the Total Endowment Fund and the Dida Scholarship from CUG Wuhan. We also thank John Slack, Balz Kamber, David van Acken and one anonymous reviewer for providing insightful comments and suggestions that improved this manuscript.

语种：英文

外文关键词：Re-Os geochronology; Pyrobitumen; Pyrite; Carlin-type gold deposit; Nanpanjiang Basin; South China

摘要：The spatial association of hydrocarbons with metalliferous ore deposits is found worldwide and is particularly common to Carlin-type gold systems. Both liquid oil and pyrobitumen are found in Carlin-type gold deposits of North Nevada, USA and the Nanpanjiang Basin, South China. However, the temporal and genetic association of hydrocarbons and gold mineralization are still debated. To this end, using rhenium-osmium (Re - Os) geochronology of pyrobitumen and gold-bearing pyrite from the Laizishan and Banqi reservoirs and the Yata Carlin-type gold deposit in the Nanpanjiang Basin, we consider hydrocarbons played a critical role in the mineralization process. A Re-Os age of 228 +/- 16 Ma obtained for highly mature pyrobitumen suggests that liquid oil cracking occurred during the Late Triassic in the Laizishan and Banqi reservoirs. This age is in agreement with the modelled thermal history of the Nanpanjiang Basin. Additionally, a broadly identical gold-bearing pyrite Re - Os age of 218 +/- 25 Ma from Yata Carlin-type gold deposit which is in agreement with ages reported for other Carlintype gold deposits in the Nanpanjiang Basin (e.g., in-situ SIMS U-Pb rutile = 213.6 +/- 5.4 Ma, Re-Os arsenopyrite = 204 +/- 19 Ma - 235 +/- 33 Ma and Rb-Sr illite = 212.8 +/- 4.6 Ma) suggests the auriferous Carlin-type systems of the Nanpanjiang Basin also formed during the Late Triassic. Integrating our Re-Os data, with recent liquid hydrocarbon experimental data and fluid inclusion data from both reservoirs and gold deposits within the Nanpanjiang Basin, a methane (CH4) dominated thermochemical sulfate reduction (TSR) process, which introduced hydrogen sulfide (H2S) into basinal fluid and ultimately led to the deposition of gold-bearing pyrite by sulfidation, is considered to be the genetic link between of pyrobitumen and gold-bearing pyrite mineralization of the Carlin-type systems of the Nanpanjiang Basin.