【摘要】：江永銀鉛鋅礦床是欽-杭Cu-Au-Pb-Zn-Ag多金屬成礦帶內(nèi)典型的矽卡巖型礦床,礦床位于銅山嶺巖體西部,產(chǎn)于巖體與圍巖的接觸帶及其附近。礦石中金屬礦物以方鉛礦、閃鋅礦、磁黃鐵礦、黃鐵礦為主。礦石金屬硫化物的S、Pb同位素組成分析顯示,δ~(34)S值變化范圍為0.1‰~3.6‰,平均值1.7‰,組成極為均一,指示硫主要來(lái)自巖漿;礦石鉛同位素組成比較穩(wěn)定,~(206)Pb/~(204)Pb、~(207)Pb/~(204)Pb、~(208)Pb/~(204)Pb值變化范圍分別為18.776~18.953、15.724~15.847和39.017~39.448,平均值分別為18.884、15.775和39.224,與銅山嶺花崗閃長(zhǎng)巖鉛同位素組成相似,具上地殼鉛特征。江永銀鉛鋅礦床成礦物質(zhì)主要來(lái)自深部巖漿熱液。
[Abstract]:Jiangyong silver lead-zinc deposit is a typical skarn type deposit in the Qinghang Cu-Au-Pb-Zn-Ag polymetallic metallogenic belt. The deposit is located in the west of Tongshanling rock body and occurs in and near the contact zone between rock mass and surrounding rock. The metallic minerals in ore are galena, sphalerite, pyrrhotite and pyrite. The analysis of the isotopic composition of ore metallic sulfides shows that the 未 ~ (34) S value varies from 0.1 鈥，

本文編號(hào)：2197424