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本文综合研究了本所实验室多年积累的我国三十多个斑岩铜(钼)矿床(点)近一千余个硫同位素组成数据.这些矿床产在不同的地质构造单元,遍布全国十七个省、市(区);根据地质依据及同位素地质年龄,它们形成时代纵贯吕梁期至喜山期.这些地处不同地质背景、时代各异的众多矿床,其硫同位素组成却有着许多共同的特征:(1)δS~(34)值变化范围狭窄、绝对值小:近一千个硫化物的δS~(34)值在-5.5—+7.6‰内变化.其中95%以上数据的δS~(34)的绝对值小于4‰.
This paper comprehensively studies the data of nearly one thousand sulfur isotopes in more than thirty porphyry copper (molybdenum) deposits (spots) accumulated by our laboratory for many years.These deposits are produced in different geological structure units all over the country Provinces and municipalities (districts). According to geological evidence and isotopic geologic ages, they formed an age that runs through the Luliang period to the Himalayan period.These deposits are located in different geological backgrounds and different times, and their sulfur isotopic composition has many common : (1) The range of δS ~ (34) value is narrow and the absolute value is small: the value of δS ~ (34) of nearly one thousand sulfides varies from -5.5 to + 7.6 ‰, of which 95% The absolute value of ~ (34) is less than 4 ‰.