REE geochemistry of the Huanggu angliang skarn Fe-Sn deposit, Inner Mongolia

The Huanggangliang deposit is the large Fe-Sn paragenic one in northern China. The REE geochemistry of strata, altered rocks, ore-hosting skarn and garnet fro m various orebodies indicates that the comprehensive process of magma, magmatic water, wall rocks and especially meteoric water is responsible for metallization . The contribution of magmatism to metallization tends to increase toward intrus ive, but the contribution of strata and meteoric water to metallization tends to increase away from intrusive. The effect of meteoric water on metallization ten ds to be intensified from barren ore to rich ore. In the late stage, magmatic hy drothermal process was superimposed on metallization. The various REE patterns s ymbolize the multi-source of fluid and multi-phase metallization.The REE patte rns are the magmatic hydrothermal characteristics in Sumugou Cu-Pb-Zn deposit. The result of REE geochemistry primarily establishes the REE pattern model for the type of Huanggangliang skarn deposit.