Fluid Flow in a Deforming Thrust Terrane

变形逆冲地体中的流体流动

• 批准号: 9219986
• 负责人: David Wiltschko
• 金额: $ 10.07万
• 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: 1992
• 资助国家: 美国
• 起止时间: 1992-12-15 至 1996-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9219986&HistoricalAwards=false
• 关键词: Fluid; Flow; Deforming; Thrust; Terrane

The mechanics of emplacement of huge thrust sheets to form mountain belts has remained one of the most poorly understood aspects of tectonics. It has been long recognized that fluids have played a critical role in the emplacement process through the reduction of the tectonic stress but the exact explanation of how this happens remains unsolved. Attempts at physical modeling of this phenomena have been insightful but have lacked a realistic consideration of hydrologic and thermal conditions. This project will construct models that address the above issues that will predict fluid pressures along fault zones and within fault bounded blocks. Results will have important implications for the development of most mountain belt systems of the world.

巨大的逆冲片侵位形成山带的机制一直是构造学中最鲜为人知的方面之一。流体通过减少构造应力在侵位过程中发挥了关键作用，这一点早已得到承认，但对这种情况如何发生的确切解释仍未解决。对这一现象进行物理模拟的尝试是有见地的，但缺乏对水文和热条件的现实考虑。该项目将构建解决上述问题的模型，以预测沿断裂带和断层边界区块内的流体压力。研究结果将对世界上大多数山地带系统的发展具有重要意义。