Collaborative Research: Mapping magnetic anomalies in the Cretaceous "Quiet" Zone using a new airborne autonomous vehicle

合作研究：使用新型机载自动飞行器绘制白垩纪“安静”区域的磁异常图

• 批准号: 0452305
• 负责人: Dennis Kent
• 金额: $ 7.2万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-10-01 至 2009-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0452305&HistoricalAwards=false
• 关键词: Collaborative; Research; Mapping; magnetic; anomalies

The proposed study will conduct several magnetic lines across the Cretaceous Quiet Zone (KQZ) seafloor in the south Pacific between Samoa and New Zealand. Magnetic data will be collected by a ship and with an autonomous aerial vehicle (AAV) will be launched and recovered from the ship to cover a swath of magnetic lines. The objective is to collect closely spaced magnetic tracks that will show correlatable magnetic anomalies within the KQZ. The ship's magnetic gradiometer will allow external field variations to be quantified and removed from the data. Vector magnetic data will also be collected to define the three-dimensionality of the magnetic anomalies. The data will allow the determination of the nature of the magnetic anomalies in the KQZ and reveal more about magnetic field behavior and/or crustal accretion processes. Broader impacts include the potential of clarification of a long-standing issue concerning the higher resolution details of the Cretaceous Magnetic Quiet Zone. Graduate students will be involved at both institutions.

拟议的研究将在萨摩亚和新西兰之间的南太平洋白垩纪平静区海底进行几次磁力线测量。磁性数据将由一艘船只收集，并将发射一架自主飞行器（AAV），从船上回收，以覆盖一条磁力线。目的是收集密集的磁迹，这些磁迹将显示KQZ内可验证的磁异常。船上的磁梯度仪将允许外部磁场变化被量化并从数据中删除。还将收集矢量磁数据，以确定磁异常的三维性。这些数据将有助于确定KQZ中磁异常的性质，并揭示更多关于磁场行为和/或地壳吸积过程的信息。 更广泛的影响包括澄清一个长期存在的问题的可能性，这个问题涉及白垩纪磁静区的更高分辨率细节。研究生将参与这两个机构。