Geological and Geochemical Characteristics of Dioritic Porphyrite in Quanshan of Xuzhou, Jiangsu Province
详细信息
- 责任者：Zhou Guoqing (Xuzhou Geological Survey of Architectural Institute ; Xuzhou 221116 ; China) ; Jiang Yaofa
- 刊名：Journal of Geology
- 出版年：2011
- 卷期：35(3)
- 关键词：闪长玢岩 ; diorite porphyry ; 江苏 ; Jiangsu Province
- 页码：p.265-267
- 图表：3 illus., 2 tables, 5 refs.
- 分类号：0801
- 出版序号：250
- issnNo：ISSN1674-3636
- isbnNo：CN32-1796/P
摘要
The intermediate hypabyssal intrusive rocks were found near the east piedmont of Quanshan Mountain in Xuzhou in Cambrian system. Through optical microscopic observation and geochemistry analysis:it was dioritic porphyrite, and the content of SiO2 (61.68%), Na2O (3.80%), K2O (3.07%), higher micro elements of Ba, Sr, W, enriched LREE, poor HREE and positive Eu abnormal. The standard partition mode of rare earth element chondrite was quite similar to Banjing dioritic porphyrite and granodiorite porphyrite. It was concluded that the geochemical characteristics were related to the magma activity of Banjing rock mass.