The characteristics of surface uranium mineralization, ore characteristics and uranium geochemistry in the southern Weijing area, Siziwang Banner, Inner Mongolia were described, the geochemistry characteristics of constant, trace and rare earth elements in the NE-trending ore-bearing structures were studied. The results show that the uranium mineralization is closely related to the adsorption of gelatinite and ferric oxide, and the U is positively related to P2O5. According to the characteristics of uranium mineralization, the genesis of uranium mineralization is discussed, and it is considered that the ore-bearing hydrothermal solution rises along the structure to a special redox interface, after unloading, the uranium enters into the crystal lattice of apatite by isomorphism, and forms uranium-rich gelophosphate, at the same time, heavy rare earth and strontium are enriched and precipitated together.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |