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以岩矿鉴定结果和电子探针绿泥石分析数据为依据,将325、706花岗岩型铀矿床蚀变带绿泥石分为假象绿泥石和鳞片状绿泥石。后者由前者转变而成,转变过程中存在着铁的迁出与镁的加入,迁出的铁形成赤铁矿,可能是造成碱性蚀变带呈红色的原因之一。201、325铀矿床蚀变带绿泥石为铁镁绿泥石和蠕绿泥石,706铀矿床蚀变带绿泥石主要属密绿泥石和铁斜绿泥石,少数属铁镁绿泥石。研究发现绿泥石变种由蚀变带原岩的∑FeO与MgO比值大小决定,与铀矿蚀变带是否为酸性和碱性没有必然的对应关系;绿泥石晶胞中镁羟基和铝羟基相对比例大小不同,是导致其吸收位置在2259~2262nm和2348~2359nm的诊断性吸收峰发育程度存在差别的原因。
Based on the results of rock and mine appraisal and the analysis data of electron probe chlorite, the alteration chlorite of granite-type uranium deposit 325 and 706 is divided into illusion chlorite and scaly chlorite. The latter is made by the former. There is iron migration and magnesium addition during the transformation. The removal of iron from the hematite formation may be one of the reasons that the alkaline alteration zone is red. The alteration zone chlorite of 201,325 uranium deposit is feldspathic chlorite and vermiculite. The alteration zone chlorites of 706 uranium deposit are mainly dense chlorite and feldspathic chlorite, and a few are ferrusite . It is found that the chlorite variety is determined by the ratio of ΣFeO to MgO in the original rock of the altered zone and is not necessarily related to whether the altered zone of the uranium is acidic or alkaline. The relative proportion of different sizes, is the cause of the absorption of the location of 2259 ~ 2262nm and 2348 ~ 2359nm diagnostic absorption peak differences in the development of the reasons.