Adularia-sericite-type epithermal gold deposit, related to a Late Triassic granite intrusion that was in turn intruded by a Cretaceous granite stock and is overlain by a sequence of rhyolitic lavas and tuffs with minor dacite. Both the intrusion and the volcanic sequence are intruded by rhyolitic porphyry dykes. The ore bodies are controlled by a series of NS-, NE- and NNE-trending faults. Most of them are hosted within the dykes or in the lavas surrounding them, and one of them is hosted within the Triassic granite.
References
- Jihai Guo, Changsheng Wang, and Yaojun Shi (2004): Geological and geochemical features of the Dong'an gold deposit in Heilongjiang. Geology and Prospecting 40(4), 37-41.
- Zhiming Liu, Guiwu Ao, Jianbo Yu, Xixin Liu, and Jihai Guo (2004): Mineralogical Criteria for Dong' an Epithermal Gold Deposit in Northern Heilongjiang Province. Contributions to Geology and Mineral Resources Research [Dizhi Zhaokuang Luncong] 19(3), 177-180.
- Zhiming Liu (2006): Geology, Geochemistry and Genesis of the Dong'an Gold Deposit, Heilongjiang Province. Contributions to Geology and Mineral Resources Research [Dizhi Zhaokuang Luncong] 21(2), 95-99.
- Zhaochong Zhang, Jingwen Mao, Yanbin Wang, Pirajno, F., Junlai Liu, and Zhidan Zhao (2010): Geochemistry and geochronology of the volcanic rocks associated with the Dong'an adularia–sericite epithermal gold deposit, Lesser Hinggan Range, Heilongjiang Province, NE China: Constraints on the metallogenesis. Ore Geology Reviews 37, 158-174.
External Links
http://dept.cugb.edu.cn/DeptWeb/kjc/web_dizhi/yuanxi/upload/news_201142120831.pdfMineral List
24 entries listed. 16 valid minerals.
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