Healed Microcracks in Granites as Indicators of Local and Regional Paleostresses

花岗岩中愈合的微裂纹作为当地和区域古应力的指标

• 批准号: 8816805
• 负责人: Bart Kowallis
• 金额: $ 7.93万
• 依托单位: Brigham Young University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-04-01 至 1993-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8816805&HistoricalAwards=false
• 关键词: Healed; Microcracks; Granites; Indicators; Local

Healed microcrack sets are common features in rocks and are marked by planar arrays of fluid inclusions. The use of these features to delineate deformational events, including paleostress determination, is of increasing interest. This study will measure microcrack arrays in well-dated plutons in Utah in order to determine the usefulness and limitations of microcracks as paleostress indicators and to better understand the paleostress history of the Basin and Range Province from the Mesozoic to the present. Results will be of general interest in the field of paleostress determinations as well as local Cordilleran geology.

愈合的微裂纹组是岩石中的常见特征， 以流体包裹体的平面阵列为标志。 使用这些 描述变形事件的特征，包括古应力 决心越来越受到人们的关注。 本研究将 在犹他州的年代确定的岩体中测量微裂纹阵列， 确定微裂纹的有用性和局限性， 古应力指标，更好地了解古应力 盆地山脉省从中生代到 礼物 结果将在以下领域引起普遍兴趣： 古应力测定以及当地的科迪勒拉地质。