A Comparative Rockmagnetic and Calcite Strain Study of Deformation, Diagenesis, and Remagnetization of Paleozoic Cratonic Carbonates

古生界克拉通碳酸盐变形、成岩作用和再磁化的岩磁和方解石应变比较研究

• 批准号: 9005075
• 负责人: Subir Banerjee
• 金额: $ 12.99万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-15 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9005075&HistoricalAwards=false
• 关键词: Comparative; Rockmagnetic; Calcite; Strain; Study

The PIs will investigate the relationships between Late Paleozoic remagnetization deformation, and diagenesis, by studying the rock magnetic properties and deformation microstructures in Paleozoic carbonates from a number of localities in eastern North America. The principal goals will be to: 1) more completely characterize the magnetic mineralogy and remanence carriers in remagnetized carbonate strata; 2) investigate possible quantitative correlations between diagenetic illite and diagenetic/authigenic magnetite content; 3) compare the orientations and magnitudes of magnetic and calcite twinning strain fabrics; and 4) evaluate the connections between Late Paleozoic fluid migration, calcite twinning, and magnetite authigenesis, and the evolution of the Appalachian-Ouachita fold- and-thrust belt.

通过研究北美东部多个地区古生代碳酸盐岩的岩石磁性和变形微结构，研究晚古生代再磁化变形与成岩作用之间的关系。主要目标是：1)更完整地表征再磁化碳酸盐地层中的磁性矿物学和剩余物载体；2)探讨成岩伊利石与成岩/自生磁铁矿含量之间可能的定量相关性；3)比较磁性和方解石孪晶应变织物的取向和大小；4)评价晚古生代流体运移、方解石孪生和磁铁矿自生作用与阿巴拉契亚-瓦希托褶皱冲断带演化的关系。