METALLOGENIC CONDITIONS AND SERIES OF VOLCANIC ROCK-PORPHYRY TYPE POLYMETALLIC DEPOSITS ON THE NORTHWESTERN SLOPE OF DAXINGAN RANGE

摘要

There have been at least one large and two small Cu(Mo) deposits of porhhyry type, three large and two middle-sized hypergenic-hydrotherm-polymetallic Ag-Ph-Zn deposits, two Ag(Cu) metallization zones of hypergenic low temperature hydrothermal-acidic sulphate type, and several mineralization zones of skarn type discovered in the metallogenic belt of Ag-Pb-Zn-Cu-Mo ore deposits at the northwestern slope of the Daxingan Range, Heilongjiong Province. The geological background tectonic evolution and metallogenesis, metallogenic series, metallogenic mode, etc. of the belt were investigated.