Geochemical Exploration Model Of Tin Deposits In Southeastern Yunnan, China

Based on the geochemical exploration model of typical ore depositsand the investigation of the tin deposits in the southeast Yunnan area, this paper collectesgeological and geochemical data of Gejiu Laochang tin multi-metal deposit, Mengzi Bainiuchang tin-sliver multi-metal deposit and Maguan Dulong tin-zinc multi-metal deposit, which are typicaltin deposits in southeastern Yunnan province, China. Accordingtothe methodsof the typical deposit’s geochemical modeling inthepotential evaluationproject of the national mineral resource, this papersets up three typical tin deposit’s geochemical exploration models, and then analyzes and summarizes the geochemical exploration model of tin deposits in southeastern Yunnan, which includes the regional geochemical exploration and the rock geochemicalexploration. We make the following conclusions:Gejiu Laochang tin multi-metal deposit’s geochemical exploration model:The combination of exploration indicator elements and the level of anomalies in the regional geochemical exploration are totally 22 elements, including Sn, Cu, Pb, Zn(7 level); Cd, Ag(6 level); W, Bi, As, Be(5 level); Mo, Th, Co(4 level); Sb, B, U, Ni(3 level); Au, Hg, F, V(2 level); Li(1 level).The combination of exploration indicator elements and the level of anomaliesin the rock geochemical exploration are totally 20 elements, including Cu(7 level); Sn(6 level); W, Bi, Pb, Cd, B, Be(5 level); Zn, Ag(4 level); Mo,As(3 level); Au, Sb, F, Li, Sr(2 level); U, Co, Ni(1 level).Mengzi Bainiuchang tin-sliver multi-metal deposit’s geochemical exploration model: The combination of exploration indicator elements and the level of anomaliesin the regional geochemical exploration are totally 6 elements, including Pb, Sb(4 level); Ag, Sn, Zn(2 level); As(1 level). The combination of exploration indicator elements and the level of anomaliesin the rock geochemical explorationare are totally 14 elements, including Hg(5 level); Sb, Cd, Pb(4 level); Bi, Ag, Sn(3 level); As, Zn(2 level); W, Cu, Nb, Th, U(1 level)。Maguan Dulong tin-zinc multi-metal deposit’s geochemical exploration model:The combination of exploration indicator elements and the level of anomaliesin the regional geochemical exploration are totally 14 elements, including Sn, Zn,As(7 level); Cd, Cu, W(5 level); Ag, Bi(4 level); Pb, Li(3 level); Sb, F, Be, Y(2 level). The combination of exploration indicator elements and the level of anomaliesin the rock geochemical exploration are totally 14 elements, including Sn, Zn, Be(5 level); Bi, Ag(4 level); W, Cu, As, F(3 level); Pb, Li, U(2 level); B, Nb(1 level).The tin deposits’ geochemical exploration modelof southeastern Yunnan: The combination of exploration indicator elements and the level of anomaliesin the regional geochemical exploration are totally 13 elements, including Sn, Cu, W, Zn, Cd(5~7 level); Pb, Bi, As, Ag, Be, Sb(3~5 level); F, Li(1~3 level). The combination of exploration indicator elements and the level of anomaliesin the rock geochemical exploration are totally 15 elements, including Be(5~7 level); Sn, Cd, Bi, Cu, Pb, Zn, Ag, W, Sb, B(3~5 level); As, F, Au, U(1~3 level).