發(fā)布時(shí)間：2019-02-08 19:02

【摘要】：針對(duì)湘西五強(qiáng)溪金礦化集中區(qū)的金礦床成因問(wèn)題,通過(guò)對(duì)其賦礦紫紅色砂質(zhì)板巖、發(fā)生褪色蝕變的砂質(zhì)板巖、鈉長(zhǎng)巖脈、含金鈉長(zhǎng)石英脈和含金多金屬硫化物石英脈的稀土-微量元素地球化學(xué)研究發(fā)現(xiàn),稀土配分模式均為右傾重稀土富集型,微量元素反映殼源特征,但具體的分布模式和范圍表明,鈉長(zhǎng)巖脈所代表的巖漿活動(dòng)與區(qū)內(nèi)金成礦關(guān)系密切,而紫紅色砂質(zhì)板巖的褪色蝕變則表明了成礦流體的還原性特征,結(jié)合區(qū)域地質(zhì)和礦床地質(zhì)研究成果,本區(qū)金礦床為與印支-燕山期構(gòu)造巖漿活動(dòng)產(chǎn)生的還原性成礦流體有關(guān)的金礦床。
[Abstract]:In view of the genetic problems of gold deposits in the Wuqiangxi gold mineralization concentration area in western Hunan, through the occurrence of purple slate, discoloration and alteration of slate, sodium longwall veins, the gold deposits in Wujiangxi gold deposit area, western Hunan Province, are studied. The geochemistry of rare earth elements in albite vein and quartz vein containing gold polymetallic sulphide shows that the REE distribution pattern is right heavy rare earth enrichment type, and trace elements reflect the characteristics of crust source. However, the specific distribution pattern and scope indicate that the magmatic activity represented by the long sodium veins is closely related to the gold mineralization in the area, while the fading and alteration of the purplish slate indicate the reductive characteristics of the ore-forming fluids. Based on the results of regional geology and deposit geology, the gold deposit in this area is related to the reductive ore-forming fluid produced by Indosinian Yanshanian tectonic magmatism.
【作者單位】： 東北大學(xué)秦皇島分校資源與材料學(xué)院;東北大學(xué)資源與土木工程學(xué)院;遼寧省礦產(chǎn)勘查院;
【基金】：中央高校基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金(N130423003)
【分類號(hào)】：P618.51

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