Mineralogical Characteristics of Anatase,Rutile and Ilmenite in Yangtizishan-Moshishan Titanium Ore Deposit,Inner Mongolia
摘要
///The Yangtizishan-Moshishan metamorphosed sedimentary titanium ore deposit, discovered and explored by the authors in recent years, is of an anatase-predominated new-genetic type. Chemical composition of anatase shows obviously lower contents of FeO than that of rutile. Electron microprobe analyses of the associated ilmenite show higher contents of MnO and lower MgO, while ilmenite occurring in the vanadium-titanium-magnetite ore deposits of magmatic type in Panzihua and Hongge has higher MgO contents and lower MnO contents. Mineralogical characteristics of all titanium (iron) oxide minerals further suggest that this titanium ore deposit was formed in a Precambrian marine hydrothermal sedimentary environment, and was genetically related to the marine basic volcanism but later subjected to intermediate regional metamorphism.