本文選題：曼灑礦床 + 菱鐵礦�。� 參考：《巖石礦物學(xué)雜志》2017年03期

【摘要】：首次研究了云南省勐臘縣曼灑菱鐵礦床碳酸鹽巖層中菱鐵礦的Fe同位素組成特征,并利用菱鐵礦Fe同位素對礦床成因及成礦環(huán)境進行了制約。曼灑礦區(qū)菱鐵礦δ~(56)Fe值變化范圍為-0.337‰~-0.201‰,平均值為-0.261‰;δ~(57)Fe范圍為-0.518‰~-0.289‰,平均值為-0.380‰。菱鐵礦樣品Fe同位素組成非常均一,富集鐵的輕同位素。通過大量對比分析,提出曼灑鐵礦床的成礦作用與海底熱液活動有關(guān),為含礦熱水溶液噴溢出海底后快速堆積成礦,礦床形成于局限深水洼地的還原性環(huán)境。
[Abstract]:The Fe isotopic composition of siderite in carbonate strata of Mensa siderite deposit in Mengla County Yunnan Province has been studied for the first time and the genesis and metallogenic environment of the deposit have been restricted by using the Fe isotope of siderite. The range of 未 ~ (56) Fe value of siderite is -0.337 鈥，

本文編號：2062296