地质调查与研究2015，Vol.38Issue(4)：277-283,7.
老挝爬奔金矿床稳定同位素、稀土元素地球化学特征
Geochemical Characteristics of Stable Isotopes and REE at the PHAPUN Gold Deposit in Laos
摘要
Abstract
The PHAPUN gold deposit, located at the intersection site of the Fengshali-Pafu(Thailand) Mesozoic depression belt and Luangprabang(Laos)-Lifu(Thailand) Hercynian fold belt, belongs to post-magmatic epither-mal type gold deposit. Through a detailed study on characteristics of hydrogen, oxygen, carbon isotopic composi-tions and the REE distribution patterns of ore-bearing calcites in PHAPUN gold deposit, we try to figure out the resources of H2O and C in the ore-forming fluids and evolution of ore-forming fluids. The results reveal that ore-forming fluids are mainly derived from magmatic water and ancient meteoric water. The C and O isotopic compositions of The 13CV-PDB(‰) and 18OV-SMOW(‰) of calcites in ores range from-4.5~-5.2 and 20.0~20.8, re-spectively, which show that ore-bearing calcites were the interacted products of hydrothermal fluids and the Perm-ian marine carbonate rocks.关键词
地球化学/稳定同位素/稀土元素/PHAPUN金矿/老挝Key words
geochemistry/stable isotope/rare earth element/PHAPON gold deposit/Laos分类
天文与地球科学引用本文复制引用
牛英杰,刘威,高亚龙,刘智勇,杨海林,于文修..老挝爬奔金矿床稳定同位素、稀土元素地球化学特征[J].地质调查与研究,2015,38(4):277-283,7.基金项目
中央地质勘查基金,国外矿产资源勘查基金(201211B00200006) （201211B00200006）
