SGER: Feasibility of Using Old Antarctic Cores for New Paleomagnetic Studies

这项探索性研究的小额赠款支持对以前从南极洲大陆边缘收集的沉积物岩心进行古地磁调查。许多这些岩心最初都是用当时先进的方法来解释的，但这些方法几乎不够用。尽管如此，这些结果仍然用于构建海洋沉积物和与南大洋、全球气候和南极冰川历史有关的重大事件的总体地层记录。随着几十年来古地磁技术的进步，以及ANDRILL和ShalDrill等重大项目对南极海洋沉积物的极大兴趣和当前的工作，需要对这些岩心进行重新评估。此外，这些新的研究将提供对地球切线柱内地磁场行为的洞察，这个区域由一个与地球旋转轴平行的假想圆柱体描绘，切线与内核边界的赤道相切。这项工作的更广泛的影响包括支持博士后学生的研究，并通过提高对南极海洋沉积物记录的了解，提高社会对全球气候变化的认识。

This Small Grant for Exploratory Research supports a paleomagnetic survey of previously collected sediment cores from Antarcticas continental margin. Many of these cores were originally interpreted with methods that, though advanced for their time, were barely adequate. Nonetheless, these results are still used to construct an overall stratigraphic record for marine sediments and major events related to the Southern Ocean, global climate, and Antarcticas glacial history. With the advances in paleomagnetic techniques over the intervening decades and the great interest and current work on Antarctic marine sediments by major projects such as ANDRILL and ShalDrill, a reassessment of these cores is needed. In addition, these new studies will offer insight into the behavior of the geomagnetic field within the Earths tangent cylinder, the region delineated by an imaginary cylinder parallel to the Earths rotation axis and tangent to the equator of the inner core boundary.The broader impacts of this work include support of postdoctoral student research and improving societys understanding of global climate change through an improved understanding of the Antarctic marine sediment record.