Metallogenic prediction of copper polymetallic deposit in the Yueyashan-Laodonggou area, Beishan Ore Belt

Abstract

The Yueyashan-Laodonggou area in the Inner Mongolia is located in the southeast of Beishan Ore Belt.Previous prospecting work in the area focuses on gold, tungsten and other minerals, wheras it rarely involved copper-related deposits.Based on the field geological survey, in combination with extraction and comprehensive analysis of indoor multivariate prospecting information, we systematically studied the geological characteristics, prospecting model and comprehensive prospecting information of typical copper polymetallic deposits in this area, and thus finally carried out metallogenic prediction.The copper in the area mostly occurs with iron, lead and zinc, and the deposits are controlled by carbonate, Paleozoic intermediate-felsicplutons and NW-NWW faults, thus can be classified as skarn-type copper polymetallic deposits.The places with NW-NWW faults, high magnetic anomalies and Cu-Pb-Zn geochemical anomalies are favorable prospecting area for such deposits.Hereby, four prediction areas (A1, A2, B1, C1) have been delineated, and high-quality mineralization and alteration are observed in two of them(A1, A2) by field verification, which points out the direction for the next-stage work in this area.

Keywords

• inner mongolia
• beishan orogen belt
• copper polymetallic deposit
• skarn
• metallogenic prediction