Geochemical Characteristics of Siliceous Rocks in Yangtizishan-Moshishan Anatase Ore District, Zhenglanqi County, Inner Mongolia, with Implications for Sedimentary Environment

详细信息   

• 责任者：Feng Chengyou （Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Zhao Yiming
• 刊名：Mineral Deposits
• 出版年：2008
• 卷期：27(4)
• 关键词：钛矿 ; titanium ores ; 硅质岩 ; sillicolite ; 内蒙 ; Inner Mongolia
• 页码：p.483-493
• 图表：5 illus., 4 tables, 26 refs.
• 分类号：1001
• issnNo：ISSN0258-7106
• isbnNo：CN11-1965/P

摘要

///Based on detailed field geological survey and comprehensive studies of major and trace elements as well as silicon and oxygen isotopes, the authors have discussed in this paper the origin and tectonic environment of the thick-bedded and anatase-rich siliceous rocks in the Yangtizishan-Moshishan anatase ore district, Inner Mongolia. The results show that the white thick-bedded siliceous rocks have high contents of SiO₂ and Al₂O₃ and high ratios of Al/( Al+Fe+Mn) and Al₂O₃/(Al₂O₃+ Fe₂O₃). This deposit was most likely formed by the Proterozoic volcanic exhalative process, as evidenced by petrochemical and geochemical characteristics of the anatase-rich siliceous rocks.