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西藏羌塘角木日地区二叠纪蛇绿岩的地质特征及意义
Geological features of Permian ophiolite in the Jiaomuri area,Qiangtang, Tibet, and its tectonic significance
【摘要】 1∶25万玛依岗日幅区域地质调查期间,在角木日地区发现了一套保存十分完整的蛇绿岩,岩石由放射虫硅质岩、枕状玄武岩、辉长辉绿岩和变质橄榄岩组成。这套岩石是羌塘中部地区发现的保存最为完整的蛇绿岩组合。
【Abstract】 During the regional geological mapping of the 1∶250000 Mayigangri Sheet, a very complete ophiolite was discovered in the Jiaomuri area, which consists of radiolarian chert, pillow basalt, gabbro, diabase and metaperidotite. This ophiolite is the most intact and complete one in the central Qiangtang area.
【基金】 中国地质调查局项目《1∶25万玛依岗日幅(H45C003002)区域地质调查》和《青藏高原地层格架建立与完善穴200313000054雪》部分成果。
- 【文献出处】 地质通报 ,Regional Geology of China , 编辑部邮箱 ,2004年12期
- 【分类号】P588.12
- 【被引频次】145
- 【下载频次】453