论文部分内容阅读
独立碲矿床产于大渡河韧性剪切带中段大水沟(底辟花岗岩)热穹窿体北倾伏端,是以碲为成矿主元素的Te,Bi,Se,Au,Ag和Cu多元素组合矿床.矿体斜交三叠系变质岩层,呈脉状产出.通过矿石学、流体包裹体和稳定同位素地球化学研究,认为在成矿作用早期碲发生富集,成矿流体可能与花岗岩浆热液有关;晚期金矿化,并受到古大气水的影响.初步研究结果表明,大水沟碲矿床属于一例与花岗岩浆热液有关的中成、中温热液充填成因的独立碲矿床.
The independent tellurium deposit was produced on the northern tip of the Dashuigou (diabase granite) thermal vault in the middle section of the Dadu ductile shear zone. It is composed of Te, Bi, Se, Au, Ag and Cu The ore body is oblique to the Triassic metamorphic strata, and has a vein-like output.It is believed that the early tectonism enriched tellurium through mineralogy, fluid inclusions and stable isotope geochemistry. The ore-forming fluid may be related to granite The results show that the Dashuigou tellurium deposit belongs to an independent tellurium deposit with intermediate and medium temperature hydrothermal filling related to the granitic magmatic hydrothermal fluid .