New Paleomagnetic and Environmental Magnetic Studies of Old Cores from the Ross Sea Sector, Antarctica

摘要本项目对南极大陆边缘沉积物岩芯进行了古地磁调查。其目标是完善磁性地层学，以改善区域地层对比，帮助确定缺乏生物地层指标的岩心的日期，并了解古环境条件和气候变化。同时，这些地核记录了地球磁极附近的磁场，这可能为科学家模拟地球发电机提供重要信息。这项工作的更广泛影响包括博士后和本科生教育。这也对社会理解全球气候变化有影响，因为这些技术提供了与南极海洋沉积物岩心不同的气候变化视角，而南极海洋沉积物岩心对于理解冰盖的行为及其与全球气候的联系至关重要。

Abstract This project performs a paleomagnetic survey of sediment cores from Antarctica's continental margin. Its goal is to refine the magnetostratigraphy to improve regional stratigraphic correlations, help date cores that lack biostratigraphic indicators, and understand paleoenvironmental conditions and climate change. As well, these cores record the earth's magnetic field near the magnetic pole, which may offer important information to scientists modeling the geodynamo.The broader impacts of this work include postdoctoral and undergraduate education. There are also implications for society's understanding of global climate change, since these techniques offer a different perspective on climate change from Antarctic marine sediment cores, which are critical to understanding the behavior of the ice sheets and their links to the global climate.