沉积与特提斯地质Issue(3)：102-108,7.
老挝爬立山铁矿二长花岗斑岩地球化学特征及其成矿意义
Geochemistry and mineralization of the monzonite granite-porphyry from the PhuPhaLek iron deposit, Laos
摘要
Abstract
The PhuPhaLek iron deposit, Laos in the northwestern part of the Truongson fold belt occurs as a large-sized skarn-type iron deposit. The mineralization occurs within the inner-outer contact zone of monzonite granite porphyries. The monzonite granite porphyries have enriched alkali and oversaturated Si and Al, and are assigned to the calc-alkaline rocks. The trace element distribution patterns are similar to those of the normal continental arc granites. The rare earth element distribution patterns display right-leaning LREE-enriched patterns with positive Eu anomaly and marked fractionation of LREE and HREE, suggesting the “S”-type granites created by the remelting and intrusion of the lower crust melts. The SHRIMP U-Pb age of 283 ± 2. 9 Ma indicates that the emplacement took place during the Early Permian.关键词
爬立山铁矿/二长花岗斑岩/矽卡岩型/老挝Key words
PhuPhaLek iron deposit/monzonite granite porphyry/skarn-type/Laos分类
天文与地球科学引用本文复制引用
高建华,范文玉,吴振波,王宏..老挝爬立山铁矿二长花岗斑岩地球化学特征及其成矿意义[J].沉积与特提斯地质,2015,(3):102-108,7.基金项目
海上丝绸之路经济带境外矿产资源潜力评价项目(编号12120114018701)、老挝沙耶武里及邻区优势矿产资源潜力调查与分析 （编号12120114018701）
