Petrogenesis and metallogenic implications of the Miocene granite porphyry in the Jiama Cu-polymetallic deposit, Gangdese belt, South Tibet

doi:10.1016/j.gexplo.2022.106998

	Petrogenesis and metallogenic implications of the Miocene granite porphyry in the Jiama Cu-polymetallic deposit, Gangdese belt, South Tibet
	Zhang, Lipeng 1,2,3; Hu, Yongbin 4; Wang, Kun1,2,3 ; Deng, Jianghong 1,2,3; Sui, Qinglin 1,2,3; Wang, Jinrong 5
	2022-06-01
发表期刊	JOURNAL OF GEOCHEMICAL EXPLORATION
ISSN	0375-6742
卷号	237 页码:16
通讯作者	Zhang, Lipeng([email protected]) ; Hu, Yongbin([email protected])
摘要	Geochronology, geochemical and isotopic studies were carried out on granite porphyry from the Jiama Cupolymetallic deposit, Gangdese porphyry copper deposit belt, to constrain the genesis and metallogenic potential. LA-ICP-MS zircon U-Pb dating indicates that the granite porphyry was emplaced at 14.9 +/- 0.3 Ma to 16.0 +/- 0.3 Ma, which is consistent with other felsic porphyries in the deposit. The granite porphyry shows high-K calcalkaline and peraluminous signatures. In addition, the granite porphyry shows enrichment in large ion lithophile elements and depletion in high field strength elements. However, it has low Sr (76.13-401.90 ppm) contents, which is different from other felsic porphyries with high Sr contents in the deposit. The initial 87Sr/86Sr (0.7055 to 0.7070) and epsilon Nd(t) (-0.53 to -2.37) values of the granite porphyry are close to those of other felsic porphyries in this deposit. The granite porphyry and diorite porphyry have almost identical zircon delta 18O (5.71-5.82 parts per thousand) and epsilon Hf(t) (4.1-3.97) values. These results suggest that all the felsic porphyries in the Jiama deposit were derived from the same source. Geochemical characteristics show that the magma of the granite porphyry experienced fractional crystallization of hornblende and plagioclase, whereas other felsic porphyries experienced hornblendedominated fractional crystallization. Zircon Ce4+/Ce3+ values indicate the high oxygen fugacity of granite porphyries, which is key for Cu-Mo mineralization.
关键词	Jiama Granite porphyry Porphyry Cu deposit Oxygen fugacity Gangdese
DOI	10.1016/j.gexplo.2022.106998
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22050103]; National Natural Science Foundation of China[41803032]; Taishan Scholar Program of Shandong[ts201712075]; AoShan Talents Cultivation Program; Qingdao National Laboratory for Marine Science and Technology[2017ASTCP-OS07]
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000794918500001
出版者	ELSEVIER
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179264
专题	深海极端环境与生命过程研究中心
通讯作者	Zhang, Lipeng; Hu, Yongbin
作者单位	1.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Pilot Qingdao Natl Lab Marine Sci & Technol Qingda, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangzhou 510640, Peoples R China 5.China Met Geol Bur, Second Geol Inst, Fuzhou 350108, Peoples R China
第一作者单位	深海极端环境与生命过程研究中心
通讯作者单位	深海极端环境与生命过程研究中心
推荐引用方式 GB/T 7714	Zhang, Lipeng,Hu, Yongbin,Wang, Kun,et al. Petrogenesis and metallogenic implications of the Miocene granite porphyry in the Jiama Cu-polymetallic deposit, Gangdese belt, South Tibet[J]. JOURNAL OF GEOCHEMICAL EXPLORATION,2022,237:16.
APA	Zhang, Lipeng,Hu, Yongbin,Wang, Kun,Deng, Jianghong,Sui, Qinglin,&Wang, Jinrong.(2022).Petrogenesis and metallogenic implications of the Miocene granite porphyry in the Jiama Cu-polymetallic deposit, Gangdese belt, South Tibet.JOURNAL OF GEOCHEMICAL EXPLORATION,237,16.
MLA	Zhang, Lipeng,et al."Petrogenesis and metallogenic implications of the Miocene granite porphyry in the Jiama Cu-polymetallic deposit, Gangdese belt, South Tibet".JOURNAL OF GEOCHEMICAL EXPLORATION 237(2022):16.

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