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Geology and ages of porphyry and medium- to high-sulphidation epithermal gold deposits of the continental margin of Northeast China by Shi-Jiong Han; Jing-Gui Sun; Ling-An Bai; Shu-Wen Xing; Peng Chai; Yong Zhang; Fan Yang; Lan-Jing Men; Yi-Xin Li is a Earth and Planetary Sciences article available to read on EtoBox.
What is Geology and ages of porphyry and medium- to high-sulphidation epithermal gold deposits of the continental margin of Northeast China about?
The continental margin of Northeast China, an important part of the continental margin-related West Pacific metallogenic belt, hosts numerous types of gold-dominated mineral deposits. Based on ore deposit geology and isotopic dating, we have classified hydrothermal gold-copper ore deposits in this region into four distinct types: (1) gold-rich porphyry copper deposits, (2) gold-rich porphyry-like copper deposits, (3) medium-sulphidation epithermal copper-gold deposits, and (4) high-sulphidation epithermal gold deposits. These ore deposits formed during four distinct metallogenic stages or periods, at 123.6 ± 2.5 Ma, 110-104 Ma, 104-102 Ma, and 95.0 ± 2 Ma, corresponding to periods of Cretaceous intermediate-acid volcanism and late-stage emplacement of hypabyssal magmas along the northern margin of the North China platform. The earliest stage of mineralization (123.6 ± 2.5 Ma) corresponds to the formation of medium-sulphidation epithermal coppergold deposits and was associated with a continental margin magmatic arc system linked to subduction of the Pacific Plate beneath the Eurasia. This metallogenesis is closely related to high-K calc-alkaline intermediate-acid granite and pyroxen
Who reads Geology and ages of porphyry and medium- to high-sulphidation epithermal gold deposits of the continental margin of Northeast China?
It is typically read by researchers, students, and practitioners in Earth and Planetary Sciences.
- Author
- Shi-Jiong Han; Jing-Gui Sun; Ling-An Bai; Shu-Wen Xing; Peng Chai; Yong Zhang; Fan Yang; Lan-Jing Men; Yi-Xin Li
- Publisher
- Informa UK Limited
- Published
- 2012
- Language
- EN
- Field
- Earth and Planetary Sciences (Physical Sciences)