Deformation Mechanisms in Thrust Fault Zones in Mudrocks

泥岩逆冲​​断裂带的变形机制

• 批准号: 9405162
• 负责人: David Wiltschko
• 金额: $ 15万
• 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: 1994
• 资助国家: 美国
• 起止时间: 1994-07-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9405162&HistoricalAwards=false
• 关键词: Deformation; Mechanisms; Thrust; Fault; Zones

9405162 Wiltschko In many fold and thrust belts faults are found more commonly in weak lithologies such as mudrocks. Despite this, little is known about the micromechanical behavior of mudrock, principle because of the very small grain size and the difficulty of performing laboratory experiments with the material this project is designed to determine the characters and mechanics of mudrock deformation is natural, small displacement, thrust fault zones using a combinations of observation techniques ta several scales. Results will be compared to data sets on mudrock fabrics that are the result of burial diagenesis, and with a set of experimented deformation of mudrock samples. This work is expected to help understand in a more quantitative way the mechanical properties of natural thrust fault zones.

9405162多条褶皱冲断带中的威尔奇科断层多见于泥岩等软弱岩性中。尽管如此，人们对泥岩的微观力学行为知之甚少，原理是因为泥岩的粒度很小，而且很难用这种材料进行实验室实验。该项目旨在利用几种尺度的观测技术组合来确定泥岩变形的特征和力学是自然的、小位移的、逆冲断层带。结果将与泥岩组构的数据集进行比较，这些数据集是埋藏成岩作用的结果，并与泥岩样品的一组实验变形进行比较。这项工作将有助于更定量地了解天然逆冲断裂带的力学性质。