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The age, geological setting, and types of gold deposits in the Yanbian and adjacent areas, NE China
Yun-Sheng Ren;  Cong Chen;  Xin-Tong Zou;  Hua-Lei Zhao;  Yu-Jie Hao;  He-Nan Hou;  Zhao-Chu Hu;  Guo-Hao Jiang
2016
发表期刊Ore Geology Reviews
卷号73期号:Part 2页码:284-297
摘要

The eastern part of the Xing'an–Mongolian Orogenic Belt (XMOB) in Jilin and Heilongjiang Provinces, NE China, is highly prospective for gold mineralization, and more than ten gold and gold–copper deposits have been found in the Yanbian and Dongning areas in the last decade. These deposits are classified, based on geological characteristics and mineralogical and geochemical information, into orogenic, intrusion-related, gold-rich porphyry, and epithermal deposits; the latter are further divided into high-sulfidation (HS) and low-sulfidation (LS) deposit types.

We present the results of zircon laser ablation U–Pb dating of some representative gold deposits and associated magmatic rocks within the eastern XMOB; these are the orogenic Wudaogou deposit, the intrusion-related Naozhi deposit, and the epithermal Jiusangou gold deposit. The weighted mean age of the granodiorite that hosts mineralization at Wudaogou is 253.1 ± 0.3 Ma, whereas zircons from a porphyritic dacite dike that was intruded at the same time as the formation of the Naozhi deposit yielded two groups of weighted mean ages (198.9 ± 3.6 and 126.3 ± 1.7 Ma). Zircons from a porphyritic quartz diorite within the breccia that hosts the Jiusangou deposit yielded a weighted mean age of 108.1 ± 1.4 Ma.

These data, combined with data from previous studies, enable the identification of three periods of Phanerozoic gold mineralization within the Yanbian area and adjacent regions; these are ca. 270–240, ca. 130–120, and ca. 115–100 Ma. The Late Permian to Early Triassic (270–240 Ma) events formed the orogenic gold deposits at Yangjingou and Wudaogou; both are located near the Xar Moron–Changchun Suture Zone between the North China Craton and the XMOB. The Early Cretaceous (130–120 Ma) events produced intrusion-related gold mineralization, such as the Naozhi and Miantian deposits, which are associated with Jurassic granodiorite plutons or volcanic rocks. Almost all of the gold-rich porphyry and epithermal gold deposits in this area formed during the late Early Cretaceous (115–110 Ma). We propose that the orogenic gold mineralization in the Yanbian area was closely related to the collision between the North China Craton and the eastern XMOB, whereas the other gold deposit types formed at Early Cretaceous lithospheric extensions associated with post-subduction tectonics.

关键词Gold Deposit Types orogenic tectonics zircon U–pb Dating yanbian, Ne China
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/42920512-1/9613
专题矿床地球化学国家重点实验室
作者单位1.College of Earth Sciences, Jilin University, Changchun 130061, China
2.Tianjin Institute of Geology and Mineral Resources, Tianjin 300170, China
3.State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
4.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
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GB/T 7714
Yun-Sheng Ren;Cong Chen;Xin-Tong Zou;Hua-Lei Zhao;Yu-Jie Hao;He-Nan Hou;Zhao-Chu Hu;Guo-Hao Jiang. The age, geological setting, and types of gold deposits in the Yanbian and adjacent areas, NE China[J]. Ore Geology Reviews,2016,73(Part 2):284-297.
APA Yun-Sheng Ren;Cong Chen;Xin-Tong Zou;Hua-Lei Zhao;Yu-Jie Hao;He-Nan Hou;Zhao-Chu Hu;Guo-Hao Jiang.(2016).The age, geological setting, and types of gold deposits in the Yanbian and adjacent areas, NE China.Ore Geology Reviews,73(Part 2),284-297.
MLA Yun-Sheng Ren;Cong Chen;Xin-Tong Zou;Hua-Lei Zhao;Yu-Jie Hao;He-Nan Hou;Zhao-Chu Hu;Guo-Hao Jiang."The age, geological setting, and types of gold deposits in the Yanbian and adjacent areas, NE China".Ore Geology Reviews 73.Part 2(2016):284-297.
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