Comparative Study on Geological Characteristics of Two Types of Scheelite in Yaogangxian Tungsten Deposit
Yaogangxian deposit is a typical quartz-vein type wolframite deposit in Nanling area,accompanied by two types of scheelite mineralization:quartz-vein type and skam type.Through systematic observation of field geological phenomena and fine mineralogical study under microscope,the metallogenic stages of the two types of scheelite are determined,and the macroscopic and microscopic geological characteristics of different types of scheelite are compared.The results show that there are obvious differences between quartz-vein type scheelite and skarn type scheelite in metallogenic environment,met-allogenic scale and microstructure.By comparing the petrographic characteristics of scheelite in two ore bodies,the metallo-genic process and mineralization of different types of scheelite are restricted.
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