Magnetostratigraphy of Cretaceous Sediments in the James Ross Island Basin, Antarctica

智力价值：PI将收集样本，以扩展南极詹姆斯罗斯盆地晚白垩世沉积物的磁性地层记录。快速的支持将使他能够利用阿根廷南极研究所(IAA)的邀请，参加到南极半岛詹姆斯罗斯岛的短途旅行。PI希望收集的样本将完善白垩纪正常长时间结束和31R时间下部之间的几次地磁反转的位置。此次考察的目标白兰地湾地区是盆地中标定白垩纪长标准时间线顶部生物地层位置的最佳地点，这是整个地质时间尺度上最可靠的对比层位之一。更大的影响：白垩纪长标准时间线的顶部与南半球生物地层学没有很好的对比。确定这一事件的位置将是对理解地质时间的重大补充。这次探险将为本科生提供机会。这个项目是基于与一位阿根廷科学家的富有成效的合作。

Intellectual Merit: The PI will collect samples to extend the magneto-stratigraphic record of late Cretaceous sediments of the James Ross Basin, Antarctica. RAPID support will allow him to take advantage of an invitation from the Instituto Antartico Argentino (IAA) to participate on an excursion to James Ross Island in the Antarctic Peninsula. The PI hopes to collect samples that will refine the position of several geomagnetic reversals between the end of the Cretaceous long normal Chron and the lower portion of Chron 31R. The Brandy Bay locality targeted by this expedition is the best place in the basin for calibrating the biostratigraphic position of the top of the Cretaceous Long Normal Chron, which is one of the most reliable correlation horizons in the entire Geological Time Scale.Broader impacts: The top of the Cretaceous long normal Chron is not properly correlated to southern hemisphere biostratigraphy. Locating this event will be a major addition to understanding geological time. This expedition will provide opportunities for an undergraduate student. This project is based on a productive collaboration with an Argentine scientist.