Research on Relationship between Chemical Composition of Garnet and Metamorphicgrade in BIF Iron Ores of Qianan-Luan County Area,East Hebei,China
Garnet is one of the common metamorphic minerals in sedimento-metamorphic iron ores of East Hebei Area.The rock samples containing garnet were collected from representative iron ores of Qianan-Luan area.According to electron microprobe analysis (EMPA) of garnets, Sima area belongs to amphibolite facies, Xingshan-Huangbaiyu belt belongs to amphibolite-granulite facies and Shuichang-Dashihe belt belongs to granulite facies, which is consistent with previous researchers conclusion of metamorphic facies through analyzing paragenetic assemblage of primary minerals of Qianan-Luan County Area; meanwhile end member components of garnet in sedimento-metamorphic iron ores of Qianan-Luan County Area regularly changes with the degree of metamorphism: almandite and grossularite in Sima area→almandite in Xingshan-Huangbaiyu belt→almandite and pyrope in Shuichang-Dashihe belt.
Garnet Sedimento-metamorphic Iron Ore Degree of Metamorphism East Hebei
ZHANG Longfei XU Yingxia GAO Xiaomin
Department of Geology,Mining Engineering College,Hebei United University,P.R.China No.2 Geological Brigade of Hebei Geology and Mineral Exploration Bureau,P.R.China
国际会议
第十八届凯洛林国际地质学术研讨会(The 18th Kerulien International Conference on Geological)
石家庄
英文
386-390
2013-09-20（万方平台首次上网日期，不代表论文的发表时间）