GPS Investigation of the Actively Deforming Fold and Thrust Belt of Taiwan

台湾活跃变形褶皱冲断带的GPS调查

• 批准号: 9506433
• 负责人: David Wiltschko
• 金额: $ 12万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-01 至 2000-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9506433&HistoricalAwards=false
• 关键词: GPS; Investigation; Actively; Deforming; Fold

Present data on the detailed motions of actively forming folds and faults in thrust belts are inadequate to rigorously test between various models, but such data are difficult to obtain. This project will take advantage of the high rate of growth of the Taiwan arc-continent collision to study fold and thrust belt motion from the rapidly moving thrust front across the southern portion of the fold/thrust belt. GPS geodetic data combined with extensive seismic and drilling data are expected to result in three dimensional ground motion data over active folds and faults, new balanced sections and a calibration between geodetic results and standard geophysical hypocenter and focal mechanism solutions. These will be of considerable utility in evaluating the wedge model for thrust belt dynamics.

目前有关冲断带活动形成褶皱和断层的详细运动数据不足以在各种模型之间进行严格的检验，但这样的数据很难获得。该项目将利用台湾弧陆碰撞的高增长速度，研究从快速移动的逆冲前缘穿过褶皱/冲断带南部的褶皱和冲断带运动。GPS大地测量数据与大量的地震和钻井数据相结合，有望产生活动褶皱和断层上的三维地面运动数据，新的平衡剖面，以及大地测量结果与标准地球物理震源和震源机制解之间的校准。这些都将是相当有用的评估楔形模型的推力带动力学。