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Genesis and minerogenetic characteristics of Zhaoanzhuang-type iron deposits in Wuyang,Henan province |
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| Authors: | Shouyun Yu Zhaocong Li Longchi Zhuang Shanze Li Kangjuan Liu |
| Institution: | 1. Zhongshan University, Guangzhou 2. Bureau of Geology and Mineral Resources, Ministry of Geology and Mineral Resources, China 3. Yichang Institute of Geology and Mineral Resources, China |
| Abstract: | The Zhaoanzhuang-type iron depositsoccur in the ultrabasic unit of the late Archaean greenstone belt. They are late magmatic apatite-titanomagnetite deposits, superimposed and enriched by hydrothermal solutions after their formation. Later they have also been subjected to regional metamorphism. These deposits are extremely complex in mineralogy, containing 87 kinds of mìnerals characteristic of ultrabasic-alkali complexes. Mineralization of iron, titanium and phosphorus took place mainly during the magmatic stage, while that of uranium and thorium during the pneumatolytic-hydrothermal stage. |
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