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Calcite Sm-Nd isochron age of the Shuiyindong Carlin-type gold deposit, Guizhou, China
Wenchao Su; Ruizhong Hu; Bin Xia; Yong Xia; Yuping Liu
2009
Source PublicationChemical Geology
Volume258Issue:3-4Pages:269-274
metadata_24其它
AbstractShuiyindong is one of the largest and highest grade, stratabound Carlin-type gold deposits in China. It is hosted in Permian bioclastic limestone near the axis of an anticline. Hydrothermal calcite is common on the periphery of central zones of ferroan carbonate dissolution that provided the main source of iron that was sulfidized during gold deposition. These calcite veins contain relatively high concentrations of rare earth elements with MREE-enriched patterns, and yield Sm-Nd isochron ages of 134±3 Ma to 136±3 Ma, with significant different initial εNd values of −12.9 and −2.0, respectively. These ages are interpreted to record age of decarbonation and gold deposition during the late stages of Yanshanian Orogeny. The initial Nd isotopic \ compositions of the calcites suggest that Nd was primarily derived from the Permian Longtang Formation that hosts all ore bodies at the deposit. This study shows that Sm-Nd isotopic compositions of hydrothermal calcites can be used to constrain the age and source of Nd in Carlin-type gold deposits.
KeywordSm-nd Geochronology Hydrothermal Calcite Decarbonation And Gold Deposition Carlin-type Gold Deposit Guizhou
Subject Area矿床地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/3088
Collection矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文
矿床地球化学国家重点实验室
期刊图书信息中心
Recommended Citation
GB/T 7714
Wenchao Su,Ruizhong Hu,Bin Xia,et al. Calcite Sm-Nd isochron age of the Shuiyindong Carlin-type gold deposit, Guizhou, China[J]. Chemical Geology,2009,258(3-4):269-274.
APA Wenchao Su,Ruizhong Hu,Bin Xia,Yong Xia,&Yuping Liu.(2009).Calcite Sm-Nd isochron age of the Shuiyindong Carlin-type gold deposit, Guizhou, China.Chemical Geology,258(3-4),269-274.
MLA Wenchao Su,et al."Calcite Sm-Nd isochron age of the Shuiyindong Carlin-type gold deposit, Guizhou, China".Chemical Geology 258.3-4(2009):269-274.
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