Origin of the Mesozoic Yinshan Fold-and-Thrust Belt of Northern China -- An Enigmatic Intraplate Orogen

中国北方中生代阴山褶皱冲断带的起源——一条神秘的板内造山带

• 批准号: 9903012
• 负责人: Gregory Davis
• 金额: $ 20.96万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9903012&HistoricalAwards=false
• 关键词: Origin; Mesozoic; Yinshan; Fold; Thrust

9903012DavisIntercontinental fold and thrust belts located far from subduction zones or collisional sutures present puzzles for plate tectonics theory. The Yin Shan fold and thrust belt of northern China is 1100 km long and trends east-west across the North China plate. Recent work has revealed the presence of major thrusts and a series of compressional episodes during mesozoic time. This project will continue investigation of the geometry, kinematics and timing of Yin Shan belt development in two transects. Results are aimed at a test of whether or not severe intraplate deformation can develop independently of external plate interactions.

远离俯冲带或碰撞缝合带的戴维斯洲际褶皱冲断带给板块构造理论带来了困惑。中国北部阴山褶皱冲断带长1100公里，东西走向，横跨中国板块北部。最近的工作揭示了中生代时期主要冲断和一系列挤压幕的存在。该项目将继续对两个断面的阴山带发育的几何学、运动学和时序进行研究。结果的目的是测试严重的板内变形是否可以独立于外部板的相互作用而发展。