摘要
介绍了氢氧同位素水／岩反应的基本原理及有关参数的确定，在此基础上给出了热液矿床的氢氧同位素水／岩反应演化曲线，确定了水／岩比值（W／R）.根据δ（18O）值空间变化，得出岩浆热液成因的矿床由矿体→蚀变岩→未蚀变岩，其δ（18O）值呈逐渐降低的趋势，即矿化中心正是δ（18O）的高值区，这对找矿具有重要的指导意义.
The basic principle of the interaction between water and rocks and the determination of the parameters concerned are both introduced in this paper. Then the evolutionary curves of the interaction between water and rocks in the hydrothermal mineral deposits are plotted in δ (D) -δ(18O) diagram. In addition, the ratio between water and rocks in the hydrothermal mineral deposits (Shuijingtun gold deposit) is determined. In term of the spatial variation of δ (18 O) values, the gradually decreasing trend can be concluded of the δ(18O) values from the orethey, altered rock to unaltered rock for magmatic hydrothermal deposits In other words, the mineralization center is aariated with the high value of δ(18O). This conclusion may serve as an important indicator for the ore prospecting and exploration.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1999年第5期487-488,共2页
Earth Science-Journal of China University of Geosciences
基金
国土资源部矿产资源定量预测及勘查评价开放研究实验室基金
关键词
氢氧同位素
水/岩反应
岩浆热液矿床
找矿意义
H and O isotopes, interaction between water and rocks, magmatic hydrothermal mineral deposit, prospecting significance
