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Anjiayingzi Au deposit, Anjiayingzi gold field, Harqin Banner (Kalaqin Co.), Ulanhad League (Chifeng Prefecture), Inner Mongolia Autonomous Region, China

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Granitoid-related vein-type gold deposit, occurring near two Mesozoic intrusions - the coarse, para-porphyritic Anjiayingzhi quartz monzonitic granite (U-Pb age: 189 Ma) and the Ma'anshan biotite granite batholith (K-Ar age: 170.8 Ma) - in a metamorphic sequence consisting of potassic feldspar granitoid gneiss, two feldspar biotite gneiss, biotite plagioclase gneiss, amphibolite and marble of the Jining Group. The vast majority of the gold-bearing veins occur in the Anjiayingzhi granite and its external conctact zone, but veins with significant grades are mostly limited to the Ma'anshan batholite and its contact zone. The gold mineralization is believed to be related to the monzonitic granite.

Mineral List



10 entries listed. 6 valid minerals.

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References

- Guangjun Guo and Shiqi Wang (1995): Typomorphic characteristics of auriferous and non-auriferous quartz in Anjiayingzi gold deposit. Geology and Prospecting 31(4), 26-32.
- Nie, F.-J., Jiang, S.-H., and Liu Y. (2004): Intrusion-Related Gold Deposits of North China Craton, People's Republic of China. Resource Geology 54(3), 299-324.
- Yonggang Li, Mingguo Zhai, Laicheng Miao, Liangwei Xue, Jiawei Zhu, and Hong Guan (2004): Ore-forming fluids of the Anjiayingzi gold deposit in Chifeng region, Inner Mongolia. Acta Petrologica Sinica 20(4), 961-968.
- Yonggang Li, Mingguo Zhai, Jinhui Yang, Laicheng Miao, and Hong Guan (2004): Gold mineralization age of the Anjiayingzi gold deposit in Chifeng County, Inner Mongolia and implications for Mesozoic metallogenic explosion in North China. Science in China, Series D (Earth Sciences), 47(2), 115-121.

 
Mineral and/or Locality  
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