Measuring the Aging of the Magnetic Source Layer

测量磁源层的老化程度

• 批准号: 9402060
• 负责人: Steven Cande
• 金额: $ 44.89万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 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 1998-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9402060&HistoricalAwards=false
• 关键词: Measuring; Aging; Magnetic; Source; Layer

9402060 Cande A DeepTow survey of magnetic anomalies 5 and 20 at two sites in the northeast Pacific will be conducted. The objective is to estimate the contribution of deeper sources to magnetic anomalies by measuring changes in the spectral character of the magnetic field and the width of transition zones over crust of varying age at both deep-two and mid-tow depths. The data will be used to evaluate models predicting long period temporal variations in the magnetization of the upper oceanic crust due to progressive low temperature oxidation and the possible emergence of a significant paleofield signal from deeper within the crust. ***

9402060 Cande将在东北太平洋的两个地点进行5号和20号磁异常的DeepTow调查。 其目的是通过测量磁场频谱特征的变化和不同年龄地壳上深二和中二深度的过渡区宽度，估计更深源对磁异常的贡献。 这些数据将用于评估模型，这些模型预测由于逐渐的低温氧化以及可能从地壳深处出现重要的古磁场信号，上大洋地壳磁化强度会发生长期的时间变化。 ***