Healed Microcracks in Granites as Indicators of Local and Regional Paleostresses

愈合微裂纹集是岩石中的常见特征，以流体包裹体的平面排列为标志。利用这些特征来描绘变形事件，包括古应力测定，正日益引起人们的兴趣。为了确定微裂缝作为古应力指标的有效性和局限性，更好地了解盆地和山脉省中生代至今的古应力历史，本研究将对犹他州确定年代的岩体进行微裂缝阵列测量。结果将在古应力测定领域以及当地科迪勒拉地质领域引起普遍的兴趣。

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.