Study on Geological Characteristics and Genesis of the Billia Ag-Pb-Zn Mineral Deposits in the Northern of Derbugan Metallogenic Province

The Billia Ag-Pb-Zn deposits are located in the northern section of the Derbugan metallogenic province.Some of the ore bodies are in andesite and volcaniclastic rock of the Tamulangou formation in the upper Jurassic system,they are exactly dominated the NW secondary structures of the Derbugan discordogenic fault.This paper analyzes ore-forming material source,ore-controlling factors,metallogenic mechanism from the regional and mine geology,ore geology,trace elements,isotopes,etc.It is believed the deposit belongs to a typical medium-low temperature hydrothermal and filling type Ag-Pb-Zn deposits,the genetic type is the same with Derbugan Ag-Pb-Zn deposit,Erdaohezi Ag-Pb-Zn deposit.This will be useful on finding the same type deposits in this area.