line-level: 2" class=MsoNormal>Geochemistry of Amphibolites in Hualong Group of Eastern Middle Qilian Massif and Its Tectonic Significance
详细信息
- 责任者：Gao Xiaofeng (Xi’an Institute of Geology and Mineral Resources ; Xi’an 710054 ; China) ; Li Wenyuan
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2010
- 卷期：29(5)
- 关键词：角闪岩 ; amphibolites ; 祁连山 ; Qilian Mountains
- 页码：p.507-515
- 图表：5 illus., 1 table, 26 refs.
- 分类号：0802
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
摘要
Petrologic characteristics and analyses of major and trace elements of the amphibolites in Hualong Group within the eastern segment of Middle Qilian massif are reported in this paper. The amphibolites consist mainly of amphibole (52%) and plagioclase (40%),with the accessory minerals comprising ilmenite (6%),apartite (2%),quartz and sphene. The formation of the amphibolites was probably related to the partial breakup of the Neoproterozoic Rodinia Supercontinent in the Qilianshan region or the breakup of Neoproterozoic Rodinia Supercontinent in part of the Qilianshan region.