發(fā)布時間：2018-04-19 16:32

  本文選題：流體包裹體 + 硫同位素�。� 參考：《新疆大學(xué)》2015年碩士論文

【摘要】：清水泉金銅礦床位于卡拉麥里成礦帶西段,是武警黃金部隊近年來在新疆東準(zhǔn)噶爾地區(qū)發(fā)現(xiàn)的一極具勘查潛力的礦床。礦體賦存于次火山巖中,礦化類型以細(xì)脈狀和網(wǎng)脈狀為主。對該礦床成礦期流體包裹體研究表明,其具有中低溫度、中低鹽度、密度較高、壓力較小等特點,與火山活動有關(guān)的銅礦的流體包裹體相類似。礦床硫同位素的變化范圍為0.8-2.5‰,極差3.3,平均0.84‰,表明成礦物質(zhì)來源于深源巖漿。礦石具有與圍巖相似的稀土及微量元素特征也進(jìn)一步反映成礦物質(zhì)來源與圍巖密切相關(guān)。結(jié)合地層、構(gòu)造、巖漿巖特征,認(rèn)為礦床的最初形成與早期中基性火山噴發(fā)和次火山巖體侵入有關(guān),晚期淺成巖脈的侵入再次提供部分成礦物質(zhì)和熱源,使銅礦化再次富集。
[Abstract]:Qingshuiquan gold-copper deposit is located in the western section of the Kalamaili metallogenic belt and is a potential deposit discovered by the armed police gold army in the East Junggar area of Xinjiang in recent years.Ore bodies occur in subvolcanic rocks, and the main types of mineralization are vein-like and net-vein.The study of fluid inclusions in the metallogenic period of the deposit shows that it has the characteristics of medium and low temperature, low salinity, high density and low pressure. The fluid inclusions of copper deposits related to volcanic activity are similar.The range of sulfur isotopes varies from 0.8 to 2.5 鈥，

本文編號：1773860