Geochemistry of Volcanic Rocks of the Lower Permian Wulang Formation in Wulasitai Area, Xinjiang
详细信息
- 责任者：Pan Mingchen (Liaoning Institute of Geological Survey ; Dalian 116100 ; China) ; Yu Haifeng
- 刊名：Geology and Resources
- 出版年：2011
- 卷期：20(6)
- 关键词：双峰式火山岩 ; bimodal volcanic rocks ; 地球化学 ; geochemistry ; 新疆 ; Xinjiang
- 页码：p.452-457
- 图表：10 illus., 3 tables, 5 refs.
- 分类号：0801
- 出版序号：20122308
- issnNo：ISSN1671-1947
- isbnNo：CN21-1458/P
摘要
The volcanic rock of Lower Permian Wulang Formation, distributed in the Late Paleozoic Awulale rift of Ili-Yisaikehu micro-plate, Kazakhstan-Junggar plate, is the assemblage of continental volcanic rocks and detrital rocks. Intense volcanic activities in the area left thick volcanic accumulation up to 4 000 m, which belongs to the middle and upper layers of Wulang Formation. The volcanic rocks are dominated by alkali-basic rocks and acidic rocks, characterized by bimodal. Lithogeochemistry shows a tectonic environment of intraplate basalt and continental rift basalt, which is in accordance with its tectonic location.