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引言印度西北部的元古代阿拉瓦利-德里造山带包括几个矿化带,在那里有若干层状贱金属硫化物矿床赋存在变沉积岩中。经济上最重要的矿化带之一产出在拉贾斯坦的皮尔瓦拉地区。该矿化带延伸约20km,北起贝顿尼,经
INTRODUCTION The Proterozoic Aravaree-Deri orogen in northwestern India consists of several mineralized zones where several bedded base metal sulphide deposits are present in altered sediments. One of the most economically important mineralized zones is produced in the Pirwala region of Rajasthan. The mineralization extends about 20km north of Bethany