Tongka Garnet Pyroxenite in Eastern Tibet and Songduo Blue Schist in Lhasa
详细信息
- 责任者：Sha Shaoli (Yunnan Geological Survey ; Kunming 650051 ; China) ; Xie Yaowu
- 刊名：Geology in China
- 出版年：2009
- 卷期：36(6)
- 关键词：蓝片岩 ; blueschist ; 榴辉岩 ; eclogite ; 西藏 ; Tibet
- 页码：p.1302-1311
- 图表：6 illus., 7 tables, 8 refs.
- 分类号：0802
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
The Proterozoic Kaqiong Group is distributed in northern Basu County of east Tibet 80 km 2. It is located in the Bangonghu-Nujiang juncture zone. The group consists lithologically of biotite-plagioclase gneiss, black mica-plagioclase granulite, granite gneiss, marble and amphibolite. The Kaqiong Group is a micro-continent separated from the northern margin of Gondwana continent. Garnet pyroxenite and garnet amphibolite inclusions were found for the first time in the biotite-plagioclase geniss. The fresh garnet amphibolites are composed of hornblende, diopside, garnet and a small amount of quartz and rutile, without feldspar.
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