GEOLOGICAL CHARACTERISTICS AND RE-OS ISOTOPIC DATING OF AKSHATAU GREISEN-TYPE W-MO DEPOSIT IN BALKHASH METALLOGENIC BELT

LI Yong; CHEN Xuanhua; QU Wenjun; WANG Zhihong; YANG Nong; CHEN Zhengle; HAN Shuqin

Volume 16 Issue 4

Dec. 2010

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Article Navigation > Journal of Geomechanics > 2010 > 16(4): 349-358

LI Yong, CHEN Xuanhua, QU Wenjun, et al., 2010. GEOLOGICAL CHARACTERISTICS AND RE-OS ISOTOPIC DATING OF AKSHATAU GREISEN-TYPE W-MO DEPOSIT IN BALKHASH METALLOGENIC BELT. Journal of Geomechanics, 16 (4): 349-358.

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GEOLOGICAL CHARACTERISTICS AND RE-OS ISOTOPIC DATING OF AKSHATAU GREISEN-TYPE W-MO DEPOSIT IN BALKHASH METALLOGENIC BELT

1.
Chinese Academy of Geological Sciences, Beijing 100037, China
2.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijijng 100081, China
3.
National Research Center for Geoanalysis, Beijing 100037, China

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Received: 2010-06-09
Published: 2010-12-01

Abstract

Abstract

The Akshatau disseminated Be-W-Mo deposit is a large-scale greisen-type deposit in the Balkhash metallogenic belt of Central Asian Metallogenic Domain, with typical mineral compositions, wall rock alterations, ore body shapes, and ore texture and structures of greisen-type deposit. The ore field has yielded pegmatites and quartz feldspar veins, bearing W-Mo minerals, quartz and topaz greisen. In this paper, an average molybdenite model age of 289.3 Ma has been obtained through Re-Os isotopic dating for the molybdenite samples from Akshatau W-Mo deposit, suggesting greisen-type W-Mo mineralization in the Early Permian. The Akshatau greisen-type W-Mo mineralization is considered to be the continuation of the Late Carboniferous large-scale porphyry copper-molybdenum mineralization in the Central Asian Metallogenic Domain and a product of the Late Hercynian tectono-magmatic activity in the Central Asia Orogeny.
- Re-Os isotopic age,
- molybdenite,
- metallogenic epoch,
- greisen-type W-Mo deposit,
- Balkhash metallogenic belt

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References(21)

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