摘要
莲花山斑岩型W-Au矿床矿化脉的流体包裹体氢氧同位素特征表明,成矿流体来自岩浆水与大气水的混合水,从早到晚,岩浆水成分减少,大气水成分增加。成矿流体的氧同位素、流体包裹体的盐度和成矿温度表明,较早的黑钨矿一石英脉形成于岩浆热能及热液向上推进的过程中,而后的白钨矿-硫化物-石英脉和碳酸盐-石英脉形成于岩浆热能及热液向下退缩的过程中。
Hydrogen and oxygen isotope, salinity, and homogenlzation temperature of fluid inclusions show that ore fluid in Lianhuashan porphyry-type W-An deposit evolves from early magmatic water to late meteoric water. Wolframite-quartz vein and scheelitosulfide-quartz vein are formed in the process of magmatic energy and hydrothermal fluid ingressing upward and retreating downward respectively; Carbonate-quartz vein is formed mainly by heated circulation meteoric water.
出处
《世界地质》
CAS
CSCD
1996年第2期55-60,共6页
World Geology
关键词
成矿流体
氧同位素
氢同位素
钨矿床
金矿床
porphyry-type W-An deposit, ore fluid, hydrogren and oxygen isotope