Direct Measurement of a Magnetic Polarity Boundary with Depth in Ocean Crust

直接测量洋壳深度的磁极性边界

• 批准号: 9400623
• 负责人: Maurice Tivey
• 金额: $ 28.5万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-12-15 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9400623&HistoricalAwards=false
• 关键词: Direct; Measurement; Magnetic; Polarity; Boundary

9400623 Tivey In this project the PI will conduct a field study to measure magnetization of the crust where the Jaramillo/Matuyama boundary intersects the Blanco scarp and of the adjacent seafloor. He will do this by progressively increasing the resolution of measurements through repeat surveying of the same transect using surface magnetic measurements to deep-tow measurements and then finally ALVIN measurements. The primary purpose of this study is to determine the source for marine magnetic anomalies. This study will also provide constraints on the time dimension of the origin of oceanic crust. ***

9400623 Tivey 在这个项目中，PI 将进行实地研究，测量 Jaramillo/Matuyama 边界与布兰科陡坡相交处的地壳以及邻近海底的磁化强度。 他将通过使用表面磁力测量、深拖测量以及最后的 ALVIN 测量对同一横断面进行重复测量，逐步提高测量分辨率。 这项研究的主要目的是确定海洋磁异常的来源。 这项研究还将对洋壳起源的时间维度提供约束。 ***