Feng C.-Y.,Peking University |
Feng C.-Y.,Chinese Academy of Geological Sciences |
Li D.-S.,Third Institution of Qinghai Geological Mineral Prospecting |
Wu Z.-S.,Bureau of Mineral Resources |
And 5 more authors.
Northwestern Geology | Year: 2010
Based on some fieldwork and geochemical analyses in recent years, the metallogenic setting, major types, basic geological characteristics, time-space distribution and metallogeneses of polymetallic deposits (occurrences) in the Qimantage metallogenic belt, Eastern Kunlun area are described briefly in this paper. The ore-forming elements are comprehensive and dominated by Fe, Cu, Pb, Zn, Mo, W, Sn and Au. Several various styles of polymetallic mineralization in the Qimantage metallogenic belt have been recognized and Clasified into the skarn-type deposit, porphyry deposit, hydrothermal superimposed stratabound deposit and hypothermal deposit. Two important mineralization ages of both Middle-Late Triassic and early Paleozoic for polymetallic deposits are determined in the belt. For Middle to Late Triassic porphyry and skarn-type deposits, the ore-forming materials were mainly derived from magmatic and carbonate-bearing strata, and ore-forming fluids came chiefly from magmatic fluids; and both of them belong to products of the same tectonomagmatic cycle of Triassic period, although they formed in different stage, different depth and different place.