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Bayan Har Au deposit (Beyinhar Au deposit; Baiyinha'er Au deposit), Sonid Left Banner (Sunite Zuoqi), Xilin Gol League (Xilinguole Prefecture), Inner Mongolia Autonomous Region, China

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Gold mineralization in moderate to highly quartz-sulphide veined, brecciated and fractured micaschist, adjacent to a phyllic-altered rhyolite dome. The principal prospective mineralization is hosted in micaschist and is occurring in an at least 10 m wide, NE-trending fault zone with an average grade of 5.3 g/t Au. Within the high-grade zone, there are lenses of >20 g/t Au over widths of 1-3 m. The distinct linear high-grade zone is enveloped by a pervasive but comparatively lower-grade quartz stockwork system in sericite-quartz-limonite altered micaschist. The Au grades in the stockworked envelope is generally 0.1 to 0.5 g/t Au with narrow, 2-3 m wide zones of higher-grade gold mineralization (4-5 g/t Au).

Mineral List

16 entries listed. 9 valid minerals.

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Guiqin Wang, Wang Chen, Xianrong Luo, Xiaolu Zhang, and Jianbo Du (2002): Physicochemical exploration for gold deposit in Bayanhar, Inner Mongolia. Gold Geology 21(3), 60-64.

Hongchen Zhu, Haipo Wang, and Jiongfei Zhang (2006): Two Genetic Types of Gold Deposits in Sonid Zuoqi, Inner Mongolia. Journal of Jilin University, Earth Science Edition 51(5), 759-766.

Gangzhu Li, Yuanqin Jia, Biao Zhang, Kena Chen, and Peiqing Hu (2008): Metallogenic Process of the Baiyinhaer gold deposit. Gold Science & Technology 16(3), 6-12.

Mineral and/or Locality  
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