德國拉梅爾斯貝格銅-鋅-鉛-鋇礦床研究進展
發(fā)布時間:2018-03-28 18:16
本文選題:SHMS類礦床 切入點:萊茵海西期地體 出處:《地質通報》2017年08期
【摘要】:拉梅爾斯貝格礦床是中歐華力西期最重要的SHMS(以沉積巖為容礦圍巖的塊狀硫化物)類礦床之一,位于萊茵海西期地體的上哈茨地塊。該礦床形成于泥盆紀,礦體賦存于艾菲爾階的威森巴赫頁巖中,經華力西造山運動發(fā)生了強烈的變形。主要有新礦體、老礦體和富含重晶石的灰色礦體,主要硫化物礦物為黃鐵礦、閃鋅礦、方鉛礦和黃銅礦。硫同位素數據顯示,拉梅爾斯貝格礦床有2個硫源,一個是熱液成因;一個是生物成因,來自細菌還原的海水中的硫酸鹽。鉛同位素說明,它的鉛主要來自均勻的地殼。與其他SHMS類礦床相比,拉梅爾斯貝格礦床明顯富銅。
[Abstract]:The Ramelsberg deposit is one of the most important SHMS deposits (massive sulphides with sedimentary rocks as the host rock) in Central Europe and is located in the Upper Hats block of the Rhine Hercynian terrane. The deposit was formed in the Devonian. The orebody occurred in the Weisenbach shale of the Eiffel stage and was strongly deformed by the Wallis-orogenic movement. There are mainly new orebodies, old orebodies and gray orebodies rich in barites, and the main sulfide minerals are pyrite and sphalerite. Galena and chalcopyrite. Sulfur isotopic data show that there are two sulfur sources in the Ramelsberg deposit, one is hydrothermal origin, the other is biogenetic, from sulfate in bacterially reduced seawater. Its lead mainly comes from the uniform crust. Compared with other SHMS deposits, the Ramelsberg deposit is obviously rich in copper.
【作者單位】: 中國地質科學院礦產資源研究所國土資源部成礦作用與資源評價重點實驗室;
【基金】:中國地質調查局項目《中亞及鄰區(qū)銅鎳鈾資源潛力評價與應用示范》(編號:121201103000150006)和《澳洲-印度克拉通重要礦床地質背景與成礦規(guī)律研究》(編號:1212011120325)
【分類號】:P618.2
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本文編號:1677477
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