High-resolution magnetostratigraphic investigation of geomagnetic reversal excursions younger than 60 ka using arctic marine sediments. - Precise analysis of directional and relative paleointensity characteristics. Absolute age determinations

使用北极海洋沉积物对小于 60 ka 的地磁反转偏移进行高分辨率磁地层调查。

• 批准号: 5372333
• 负责人: Privatdozent Dr. Norbert R. Nowaczyk
• 金额: --
• 依托单位: Sektion 4.3: Klimadynamik und Landschaftsentwicklung
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2002
• 资助国家: 德国
• 起止时间: 2001-12-31 至 2006-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5372333?language=en
• 关键词: resolution; magnetostratigraphic; investigation; geomagnetic; reversal

The main objective of this projekt is to reveal the geomagnetic field behavior of excursions during the last about 60 ka with high temporal resolution based on magnetostratigraphic investigation of selected arctic marine sediment cores. High-quality directional and relative paleointensity data from different high-latitude sites shall contribute detailed full-vectorial information about the behavior of the geodynamo in space and time to the SPP. Detailed rock magnetic as well as accompanying sedimentological and geochemical studies shall be performed in order to validate the quality of the obtained records. In addition, numerous absolute ages shall be derived with the accelerator mass spectrometry (AMS) 14C method in order to provide a detailed age model of the investigated sediments.

本项目的主要目的是通过对选定的北极海洋沉积物岩心进行磁地层学调查，以高时间分辨率揭示近60 ka的地磁场运动特征。来自不同高纬度地点的高质量定向和相对古强度数据将为SPP提供有关地球动力在空间和时间上行为的详细全矢量信息。为了验证所获得记录的质量，需要进行详细的岩石磁学以及相关的沉积学和地球化学研究。此外，为了提供所研究沉积物的详细年龄模型，还需要使用加速器质谱（AMS） 14C方法推导出大量的绝对年龄。