Geochemistry and Chronology of Hongtang Ore-Bearing Rocks in the Daixian Rutile Deposit, Shanxi Province

• 责任者：Pang Ercheng (No.217 Geological Party ; Shanxi Bureau of Geological Exploration ; Datong 037008 ; China) ; Xu Yongjing
• 刊名：Acta Petrologica et Mineralogica
• 出版年：2010
• 卷期：29(5)
• 关键词：金红石矿床 ; rutile deposit ; 山西 ; Shanxi Province
• 页码：p.497-506
• 图表：7 illus., 2 tables, 32 refs.
• 分类号：1002
• issnNo：ISSN1000-6524
• isbnNo：CN11-1966/P

 The Daixian rutile deposit is located in western Hengshan and belongs geotectonically to the central zone of North China Craton. Recent exploration shows that the Daixian rutile deposit is one of the largest rutile deposits in China with reserves up to 3.7 million tons of TiO₂. The Hongtang rutile orefield is one of the three main orefields in the Daixian rutile deposit. The rutile-bearing rocks mainly include anthophyllite schist, vermiculitized antinolite schist, albite-clinochlore-bearing antinolite schist and vermiculitized actinolite-bearing quartzite. The authors thus infer that the protolith of the rutile deposit is chemically equivalent to mid-ocean ridge tholeiite, and that the ore-bearing rocks were formed through crystallization differentiation of anorthite and other types of metamorphism and deformation.