Calcite Sm-Nd isochron age of the Shuiyindong Carlin-type gold deposit, Guizhou, China

	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
发表期刊	Chemical Geology
卷号	258 期号:3-4 页码:269-274
合作性质	其它
摘要	Shuiyindong 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.
关键词	Sm-nd Geochronology Hydrothermal Calcite Decarbonation And Gold Deposition Carlin-type Gold Deposit Guizhou
学科领域	矿床地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/3088
专题	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
推荐引用方式 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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