Enclosed Environment for Mineralization of Accumulative Bauxites in Pingguo, Guangxi
详细信息
- 责任者：Zhu Ruiqin (School of Geosciences and Info-Physics ; Central South University ; Changsha 410083 ; China) ; Xi Xiaoshuang
- 刊名：Geotectonica et Metallogenia
- 出版年：2011
- 卷期：35(3)
- 关键词：铝土矿 ; bauxite deposit ; 成矿作用 ; metallogenesis ; 广西 ; Guangxi Province
- 页码：p.386-393
- 图表：4 illus., 4 tables, 37 refs.
- 分类号：1002
- 出版序号：1803
- issnNo：ISSN1001-1552
- isbnNo：CN44-1595/P
摘要
The study investigates the preservation of the Pingguo accumulative bauxite deposit under intensive denudation condition via the study of the ore-soil composition. The geochemical characteristics of the soil and ore beds indicate that the strong weathering and weak erosion favored the bauxite mineralization. The preserve modes of the bauxites vary with increasing degree of karst development and the shift of drainage pattern from surface to underground. Hence, the enclosed environment resulted in the accumulation of bauxite while the vertical crustal movement and pilot surface erosion may also lead to open condition and cause the loss of accumulative bauxite.