中国地质2012，Vol.39Issue(6)：1778-1789,12.
南泥湖—三道庄钼(钨)矿床成矿流体的碳氢氧同位素研究及其启示
Source and evolution of the ore-forming fluid in the Nannihu-Sandaozhuang Mo (W) deposit: Constraints from C-H-O stable isotope data
摘要
Abstract
The hydrothermal ore-forming process of the Nannihu-Sandaozhuang Mo (W) deposit can be divided into four stages, I.e., from early to late, (1) skarn and hornfels stage, (2) quartz-K-feldspar and retrograde stage, (3) quartz-sulfides stage and (4) quartz-carbonate stage. Based on studies of carbon, hydrogen and oxygen isotopes of different stages, the authors hold that the ore-forming fluid was derived mainly from the magmatic system and subordinately from the carbonate strata with minor organic matter. The atmospheric water probably made very Little contribution to the ore-forming process. From early to late stage, the ore-forming process probably experienced immiscibility between melt and volatile-rich hydrothermal fluid, water-rock reaction, and phase separation of CO2 rich gas from ore fluid caused by sudden decompression.关键词
东秦岭/南泥湖/流体包裹体/成矿流体/稳定同位素Key words
eastern Qinling/Nannihu/ fluid inclusion/ore fluid/ stable isotope分类
天文与地球科学引用本文复制引用
向君峰,裴荣富,叶会寿,王春毅,田志恒..南泥湖—三道庄钼(钨)矿床成矿流体的碳氢氧同位素研究及其启示[J].中国地质,2012,39(6):1778-1789,12.基金项目
国土资源部公益性行业科研专项课题(200911007-08)、中央级公益性科研院所基本科研业务费专项资金(K1018)、国家科技支撑计划项目课题(2010BAB04B06)和全国危机矿山接替资源找矿项目(20089949和200841019)联合资助. （200911007-08）
