重庆洪官渡铝土矿床镓元素地球化学特征及其成矿环境探讨

Jie SUN,Xiao-dong ZHAO,Jun-min LI,Li CHEN,Tao LU, Yang CHEN,De-long JIA

Sedimentary Geology and Tethyan Geology（2014）

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Abstract

重庆洪官渡铝土矿床伴生Ga含量普遍超过了工业综合利用指标.Ga与Cr、TiO2呈强正相关,与V呈中等程度的正相关,与Al2O3、Fe2O3不相关.根据Sr/Ba、u/Th、Ga/A1等地球化学指标值特征,判断该铝土矿床的含矿岩系属海陆交互沉积,但以陆相沉积为主;同时,洪官渡铝土矿床是在以淡水作用为主的弱酸性氧化环境的中形成.

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Key words

gallium,bauxite deposit,geochemistry,metallogenic environment,Chongqing

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