The paper mainly discussed the distribution and correlation character of wall rock alteration and their relation to fault and uranium mineralization in Gaoping area by assigning data to alteration in-tensity of drill core and making contour,calculating correlation index between alterations and their rela-tion to uranium mineralization in the hanging wall and foot wall of Huangxi fault,and comparing altera-tion intensity with the rock of Indo-Chinese and Yanshanian pluton in major,trace elements and REE. Through comprehensive study,the difference in hanging wall and foot wall of Huangxi fault was summa-rized,and found that the hanging wall of Huangxi-fault had been destroyed heavier and eroded much than the footwall and the ration of Fe3 +/Fe2 + and LREE/HREE in the wall rock may play an reference role for the uranium prospecting in Gaoping area.%文章的主要内容为:(1)对高坪地区某地质剖面的钻孔岩心蚀变强度进行赋值,将所得的数据绘制成等值剖面图,分析蚀变数据在剖面上的特征;(2)通过蚀变强度数值,求出黄溪断裂带上、下盘各种蚀变之间及其与铀矿化的相关系数,得出各种蚀变之间的相关性;(3)将强蚀变岩石、弱蚀变岩石与燕山期、印支期正常花岗岩进行对比,研究蚀变岩石的化学成分及微量元素、稀土元素特征。通过综合比对研究,讨论黄溪断裂带上下盘岩石差异的原因,总结该区铀成矿规律;推测黄溪断裂上盘受矿后期构造破坏更强,且相对抬升更高;认为该区围岩中 Fe3+/Fe2+和 LREE/HREE 值对铀矿找矿有一定的指导意义。
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