摘要
新疆萨喀尔得铜矿属中低温热液型,该矿石英和方解石样品中δ13CPDB值为-17.3‰^-0.7‰,δ18OSMOW为16.2‰~22.4‰,δ18OH2O水值为6.9‰~12.5‰,δD变化于-73.8‰^-52.4‰之间。研究表明,成矿流体主要来源于深部发生循环加热的建造水,并混合变质水和岩浆水;成矿早期流体中的C主要来源于地层水或大气降水,晚期有深部岩浆水的加入。δ34S值变化范围为0.2‰~6.1‰,表明流体中的S主要来自岩浆或上地幔。
The Sakaerde copper deposit is a mesothermal-epithermal deposit. The 8 I^CPDB values of quartz and calcite samples in the deposit vary in a narrow range of- 17.3%0^-0.7%0. The ~ ~8OsMow values range from 16.2‰ to 22.4‰, their corresponding ^18OH1O values are between 6.9%0 and 12.5‰, and the 8 D values of fluid inclusions vary from -73.8‰ to -52.4‰. These data imply that the ore-forming fluids of the ore deposit were mainly derived from the heated formation water mixed with a small amount of magmatic water and metamorphic water. The carbon in ore-forming fluids mainly came from formation water or atmosphere precipi- tation, with the addition of some deep magmatic water at the late stage. The δ^34S values range from 0.2‰to 6.1‰, implying that the sulfur in ore fluids mainly came from the magma or the upper mantle.
出处
《地质通报》
CAS
CSCD
北大核心
2014年第1期104-109,共6页
Geological Bulletin of China
基金
中国地质调查局项目(编号:1212011120495
1212011220661)
