Research advances on the geochronology of Carlin-type gold deposits in the Youjiang Basin, southwestern China

被引：0
|
作者：
Gao W. [1 ]
Hu R. [1 ,4 ]
Li Q. [2 ,4 ]
Liu J. [3 ]
Li X. [2 ,4 ]
机构：
[1] State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang
[2] State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing
[3] Guizhou Bureau of Geology and Mineral Exploration & Development, Guiyang
[4] College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing
来源：
Earth Science Frontiers | 2024年 / 31卷 / 01期
关键词：
Carlin-type gold deposit; Indosinian and Yanshanian episodes of gold mineralization; mineralization age; the Youjiang Basin;
D O I：
10.13745/j.esf.sf.2023.11.39
中图分类号：
学科分类号：
摘要：
The Youjiang Basin hosts the world's second largest Carlin-type gold province after Nevada, USA. However, due partly to the uncertainty of their mineralization age the geodynamic setting of the Carlin-type gold deposits remains unclear. During the past forty years significant efforts have been made to accurately constrain the timing of these gold deposits, ranging from the early dating methods (with low reliability) such as quartz fission track and fluid inclusion Rb-Sr isochron dating, to the midterm dissolution-based bulk analyses of mineral separates such as sulfide Re-Os, to the latest in-situ precise U-Pb dating of hydrothermal U-bearing minerals including rutile, monazite, and apatite. It has now been clearly considered that there existed two episodes of Carlin-type gold mineralization in the Youjiang Basin ca. 215-200 Ma and 155-140 Ma, probably in response, respectively, to the Indosinian post-collisional intracontinental orogeny and the Yanshanian asthenospheric upwelling and lithospheric extension in southern China. © 2024 Science Frontiers editorial department. All rights reserved.
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页码：267 / 283
页数：16
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