- 责任者：Zhao Yiming (Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Li Daxin
- 刊名：Acta Geologica Sinica
- 出版年：2012
- 卷期：86(9)
- 关键词：钛矿 ; titanium ores ; 内蒙古 ; Inner Mongolia
- 页码：p.1350-1366
- 图表：8 illus., 3 tables, 45 refs.
- 分类号：1001
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
The Yantizishan deposit situated in the south part of the Moshishan was formerly referred to as an iron deposit. Based on update investigation and exploration in recent years, the authors believe that it is actually a large metamorphosed sedimentary deposit belonging to a new genetic type. Simultaneously, the Moshishan ore belt was discovered. The geological and geochemical characteristics of the ore deposit suggest that the anatase ores and amphibolite are products of submarine basic volcanism. The ores had chemical precipitation features, but were later subjected to regional intermediate （or somewhat lower） grade metamorphism. Rutile was formed mainly in the process of this metamorphism. The ore belt locally underwent hydrothermal modification during the emplacement of late Yanshanian granite （118 Ma）.oft-com:office:office" />