Geological and Geochemical Evidences for In-Situ Melting Origin of the Xilingang Granite in Guangdong Province
详细信息
- 责任者：Tang Yukun (Department of Earth Sciences ; Sun Yat-Sen University ; Guangzhou 510275 ; China) ; Yang Zhijun
- 刊名：Earth Science Frontiers
- 出版年：2011
- 卷期：18(1)
- 关键词：花岗岩 ; granite ; 深熔作用 ; anatexis ; 广东 ; Guangdong Province
- 页码：p.49-55
- 图表：7 illus., 3 tables, 16 refs.
- 分类号：0801
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Lots of information concerning granite genesis can be obtained from the geological sections of Xilingang granite body in Guangdong Province. The sections indicate that the Baihedong Formation (K1bh) formed in the Early Cretaceous acted as a residual cap over the Xilingang granite body with abrupt contact in between. The granite underlying the contact contains numerous red bed clastics that reduce gradually with increasing depth in the rock body. The results suggested that materials of granite were from the in-situ rock-strata including part of the red bed of Baihedong Formation. Differentiation during the melting-crystallizing process led different elements to be enriched in different depths of the rock body.