THE TYPOMORPHIC CHARACTERISTIC AND GEOLOGICAL SIGNIFICANCE FOR GALENA IN TIELUPING SILVERLEAD DEPOSIT AT LUONING, HENAN PROVINCE

This paper Studies the feature of mineralogy for galena in Tieluping Ag-Pb deposit, including chemical comporsition isotopic constitution and thermalelectricity of galena etc., and extracts some genetic information and ore guide with consulting value. The author considers that Tieluping Ag-Pb deposit which occurecl in Archean greenstone belt belongs to magmatic thermal-metamophil thermal type of deposit and had something to do with magma activity. The ore-forming material mainly came from crystalline basement of Archean Taihua Group. Galena with small content of Sb、nearly barren of Bi, a very few of Ag and abundant of Cu shows its typomorphic characteristics. The author proposes that in mining area the possibility for Ag-Pb ore body occuring under the 800-850 meters cevel is very few.