Metallogenic element spatial distribution of the Naruo copper (gold) deposit in the Duolong ore concentration area of Tibet and its geochemical exploration model

Abstract：After the discovery of Duobuzha and Bolong copper (gold) deposit, the exploration of the Naruo copper (gold) deposit, a large porphyry deposit, is a major breakthrough in the Dolong ore district. Based on the prospecting engineering analysis data, the authors studied the spatial distribution of metallogenic elements. The vertical zonation of metallogenic elements is not obvious, but the zoning in the plane is fairly clear: from the center of ZK0001 southwestward there exists zonation of Cu+Au→Cu(Au, Ag)→Cu(Ag, Au)→Cu(Ag). According to the soil geochemical survey, from No. 0 to No. 31 exploration line (from northeast to southwest), the zonation is Mo, Cu→Mo (Cu, Au)→Cu, Au(Ag, Mo, Pb)→Pb→Pb, Zn, suggesting that the migration direction of ore-forming fluid was from No. 0 and No. 7 line to the surrounding areas (mainly from northeast to southwest), and its materials and heat sources were near No. 0 line. Finally, through the study of geological features and element zonation, the authors established a geochemical exploration model of the Naruo ore district.