Geological Characteristics of High-Potassium Bauxite in Fangshan Mining Area, Yuzhou County, Henan Province
详细信息
- 责任者：Ma Hongyi (No.2 Institute of Geology and Environment Survey ; Department of Geology and Mineral Resources of Henan Province ; Zhengzhou 450053 ; China)
- 刊名：Contributions to Geology and Mineral Resources Research
- 出版年：2013
- 卷期：28(1)
- 页码：p.95-100
- issnNo：ISSN1001-1412
- isbnNo：CN12-1131/P
摘要
Fangshan bauxite ore deposit is the highest in potassium content in the known bauxite ore prospecting areas in Henan province.The high-potassium bauxite ore occurs in Benxi formation of Upper Series of Carboniferous System and is dominated by hard clay.The ore layer is maximum 79.47 m thick,minimum 1.98 m and averagely 18.78 m.Diaspore is the main ore mineral.composition of the high potassium bauxite ore is similar to the normal bauxite ore w(K2O) 3.75% average,10.16%maximum,0.04%.In the area high potassium minerals,such as mica are rare so K2O of the high potassium bauxite ore is not absolutely from the K-bearing mineral nor from kaolinite that is lowest in exchange of absorbed cation in the area.And w(K2O) of Cambrian cement-making limestone of Zhangxia formation is <2%.Therefore further study should be carried out on the source of K2O of the high postasium bauxite ore.
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