| ~(40)Ar-~(39)Ar Age and Geological Significance of the Sawur Gold Belt in Northern Xinjiang, China |
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| 作者姓名： | SHEN Ping SHEN Yuanchao ZENG Qingdong LIU Tiebing and LI Guangming Institute of Geology and Geophysics Chinese Academy of Sciences Beijing |
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| 作者单位： | SHEN Ping，SHEN Yuanchao，ZENG Qingdong，LIU Tiebing and LI Guangming Institute of Geology and Geophysics，Chinese Academy of Sciences，Beijing 100029; |
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| 基金项目： | 国家"305"科技攻关项目 |
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| 摘 要： | 1 IntroductionThe Sawur gold belt is an eastward extending section ofthe Zarma-Sawur gold-copper belt in Kazakhstan, locatedin the Sawur Mountain, northern Xinjiang, and mainlycomprises two large- to medium-sized gold deposits,accompanied by five small gold deposits and a series ofgold ore spots (Yin et al., 1996, 2003; Wang et al., 1999; Liet al., 2000; Liu et al., 2003; Shen et al., 2004a). TheKuo'erzhenkuola and Bu'erkesidai gold deposits are thebiggest and most important ones in this …
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| 关 键 词： | 同位素测定 火山岩 热液溶解作用 金沉积矿 新疆自治区 |
~(40)Ar-~(39)Ar Age and Geological Significance of the Sawur Gold Belt in Northern Xinjiang, China |
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| Authors: | SHEN Ping SHEN Yuanchao ZENG Qingdong LIU Tiebing and LI Guangming Institute of Geology and Geophysics Chinese Academy of Sciences Beijing |
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| Abstract: | Abstract The 40Ar‐39Ar age method is employed in this work to analyze fluid inclusions of quartz in the ore bodies from the Kuo'erzhenkuola and Bu'erkesidai gold deposits in the Sawur gold belt, northern Xinjiang. The results show that the main mineralization occurred in 332.05±2.02–332.59±0.51 Ma and 335.53±0.32 Ma‐336.78±0.50 Ma for the Kuo'erzhenkuola and Bu'erkesidai gold deposits respectively, indicating that the two deposits are formed almost at the same time, and the metallogenic time of the two deposits are close to those of the hosting rocks formed by volcanic activity of the Sawur gold belt. This geochronological study supplies new evidence for determining the timing of gold mineralization, the geneses of gold deposits, and identifies that in the Hercynian period, the Altay area developed a tectonic‐magmatic‐hydrothermal mineralization of the Early Carboniferous period, except the two known mineralization periods including the tectonic‐magmatic‐hydrothermal mineralization of the Devonian period and Late Carboniferous‐Permian period. |
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| Keywords: | 40Ar-39Ar dating volcanogenic late-stage hydrothermal solution gold deposit Sawur Xinjiang |
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