A Three-Dimensional Study of Isostasy and Morphology at a 'Superfast' Mid-Ocean Ridge Crest and Flank and Transform

“超快”洋中脊顶部、侧面和变换的均衡性和形态学的三维研究

• 批准号: 8911376
• 负责人: James Cochran
• 金额: $ 55.4万
• 依托单位: Columbia University
• 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: 1990-02-01 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8911376&HistoricalAwards=false
• 关键词: Three; Dimensional; Study; Isostasy; Morphology

This is a program to study isostasy, subsurface thermal and crustal structure and morphology at the a superfast segment of the EPR and the transform bounding it. The project is built around a detailed gravity and multibeam bathymetric survey of a 185 km long section of the southern EPR axis anf flank located between 7 40 S and 9 20 S which includes the Wilkes transform. This will be the first detailed examination of the off-axis ridge flank and of a transform on the superfast southern EPR using the modern generation of swath mapping and precision gravimeters. This data will allow the PIs to examine the ridge crest and ridge flank isostasy in three dimensions and to address a number of fundamental problems related to the thermal structure, crustal structure, segmentation and evolution of ridge flank morphology along MORs and transforms.

这是一个研究等深线，地下热 a超快段的地壳结构和形态 的EPR及其边界的变换。该项目是建立 围绕一个详细的重力和多波束测深调查， 185公里长的部分南部EPR轴和f侧翼位于 在7 40 S和9 20 S之间，其包括Wilkes变换。 这将是第一次详细检查离轴 脊侧面和一个变换的超快南方EPR 利用现代测绘技术和精度 重力仪 这些数据将允许PI检查山脊 在三维空间中的脊和脊侧面等值线， 解决了一些与热相关的基本问题， 构造，地壳结构，分段与演化 脊侧面形态沿着MOR和变换。