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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.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

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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