Characteristics of Feldspars and Their Petrogenetic Information of Shoshonite Series Volcanic Rocks from Shengyuan Basin , Jiangxi
详细信息
- 责任者：Tan Guili (Nanjing Institute of Geology and Mineral Resources ; Nanjing 210016 ; China) ; Wu Junqi
- 刊名：Resources Survey & Environment
- 出版年：2011
- 卷期：32(3)
- 关键词：火山岩 ; volcanic rocks ; 长石族 ; feldspar group ; 江西 ; Jiangxi Province
- 页码：p.169-176
- 图表：5 illus., 3 tables, 11 refs.
- 分类号：0801
- 出版序号：1651
- issnNo：ISSN1671-4814
- isbnNo：CN32-1640/N
摘要
The feldspars in shoshonite series volcanic rocks from Shengyuan Basin, Jiangxi Province, show typical mineral characteristics, such as plagioclase phenocryst with reversed zoning texture and replacement-edulcoration rim texture, abundant plagioclase microcrystal in groundmass, and the electron-microprobe analysis shows K-feldspar rims around the plagioclase microcrystal, which is an evidence identifying the rocks to be the shoshonite series. By studying the characteristics of feldspar mineral assemblage, the genesis and physico-chemical conditions in the formation of shoshonite series volcanic rocks are discussed.