Petrological and Rock Chemical Characteristics of Ore-Bearing Rock of Xinshan Area in Kafang, Gejiu, Yunnan

摘要

The paper studies on the geochemical characteristics of major element, trace element and REE of granite, marble and skarn in Xinshan Area in Kafang. The studies have shown that the granite in Xinshan Area is high-potassium calc-alkalic granite. The distribution plots of REE in different lithological rocks have obvious differences, but all three different lithological rocks have the characteristic of LREE enrichment. The ratio of LREE to HREE of Marble and skarn is larger, while that ratio of granite is smaller. The variation of LREE and HREE of Skarn is large, indicating that REE occurs significantly different in the migration process and the extent of wall rock material exchange.