Geological Investigation of the Juncture between the Western and Southern Margins of the Tibetan Plateau

青藏高原西缘与南缘交界处地质调查

• 批准号: 0106808
• 负责人: Michael Murphy
• 金额: $ 23.14万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2005-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0106808&HistoricalAwards=false
• 关键词: Geological; Investigation; Juncture; between; Western

0106808MurphyStrike-slip faulting clearly dominates the western margin of the Tibetan plateau, and thrust and normal faulting dominates the southern margin, but how these two systems interact is unclear. This has led to two distinct classes of models, one emphasizing orogen-parallel strike-skip faulting and the other emphasizing southward extrusion of Tibetan crust along the southern margin. This project will examine the timing and kinematics of the Karakoram fault system and other faults in the juncture between the western and southern margins of the Tibetan Plateau in order to discriminate between the viable models. Results should clarify the role that strike-slip faulting may play in controlling the dynamics of the southern margin of Tibet in the High Himalaya of Nepal.

0106808墨菲走滑断层明显地控制了青藏高原的西缘，逆冲断层和正断层控制了南缘，但这两个系统如何相互作用尚不清楚。 这导致了两类不同的模型，一个强调造山带平行走滑断层作用，另一个强调西藏地壳沿着南缘向南挤压。 该项目将研究喀喇昆仑断层系统和青藏高原西部和南部边缘交界处的其他断层的时间和运动学，以区分可行的模型。 结果应澄清的作用，走滑断层可能发挥在控制动力学的西藏南部边缘在尼泊尔的高喜马拉雅山。