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Preliminary Study onMetallization of Dongsheng UOre in Ordos Basin(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2006年第02期
Page:
37-40
Research Field:
Publishing date:

Info

Title:
Preliminary Study onMetallization of Dongsheng UOre in Ordos Basin
Author(s):
LI Jin-bao1 CHE Ming2 LI Xin1 LI Ji-hong1 LI Rong-xi1
1. School of Earth Sciences and Resources Management, Chang’ an University, Xi’an 710054, Shaanxi, China; 2. Fourth Oil Production Factory, Changqing Oilfield, Jingbing 718500, Shaanxi, China
Keywords:
mineralization elements kaolinite calcite U oxidation zone U reduction zone Dongsheng U depos- it Inner Mongolia Autonomous Region Ordos Basin
PACS:
P619.14
DOI:
-
Abstract:
This paper puts forward five mineralization elements for U ore in Dongsheng area, including structural element, formation factor, lithologic element and paleoclimate factor. Reflectance of X-ray diffraction analysis shows the U ore includes lots of calcite, and has positive correlation between feldspar and kaolinite perform urani- um elements transported by complex uranyl carbonate(Na2[ UO2(CO3)3])in oxidation zone. When reduction zone in acidic medium, the fragments of feldspar alter into kaolinite, separating Ca ion. Complex uranyl carbonate transport form oxidation zone to reduction zone, it will decomposition when meet many Ca ions, showing the pre- cipitation of uranium ore and calcite. The reduction function of organic substance play an important role in the precipitation of U ore.

References:

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Last Update: 2006-06-20