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

这笔用于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。这些岩心中的许多最初被解释的方法，尽管在当时是先进的，但几乎不够用。尽管如此，这些结果仍然被用来构建与南大洋、全球气候和南极洲冰川历史有关的海洋沉积物和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目前的工作，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体内地球磁场行为的洞察，地球切线柱体是由一个与地球自转轴平行并与内核边界赤道相切的假想柱体划定的区域。这项工作的更广泛影响包括支持博士后研究，并通过改进对南极海洋沉积物记录的理解来提高社会对全球气候变化的理解。

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.