Late Quaternary Paleoclimatic History of Southern Chile: Evidence from the Marine Record

南美洲南部提供了一个自然的，几乎连续的 从极地到温带气候环境的过渡。 的 高分辨率晚第四纪古海洋学恢复 智利大陆边缘的古气候记录 因此，这是建立一个时间和物理的重要一步， 海洋、大气和陆地之间的联系 南半球的系统。 该奖项旨在解决 晚第四纪边缘沉积物的海洋记录 智利南部的太平洋沿岸。 高分辨率生物地层， 古生态、古海洋和古气候 通过硅藻，有孔虫， 现代和晚第四纪沉积物的矿物学分析。 将这些结果与古气候解释进行比较， 陆地和冰芯数据将导致一个更全面的 了解海洋-大气-大陆对 气候变化 高分辨率晚第四纪气候的发展 本项目需要智利南部的记录：（1） 在时间和程度上建立关系， 南极与南极之间的第四纪冰川/气候波动 半岛和南美洲;（2）完成一个区域 初步古气候研究的框架，从而导致 对未来南方新冰期历史的详细研究 南美洲和南极半岛地区。

Southern South America provides a natural and almost continuous transition from polar to temperate climatic settings. The recovery of high resolution late Quaternary paleooceanographic and paleoclimatic records from the Chilean continental margin is thus an essential step in establishing the temporal and physical linkages between the oceanographic, atmospheric, and terrestrial systems of the southern hemisphere. This award addresses the late Quaternary marine record of marginal sediments of the Pacific rim of southern Chile. High resolution biostratigraphic, paleoecologic, paleooceanographic, and paleoclimatologic reconstructions will be accomplished through diatom, foramineral, and mineralogic analyses of modern and late Quaternary sediments. Comparing these results with paleoclimatic interpretations of terrestrial and ice core data will lead to a more comprehensive understanding of the ocean-atmosphere-continent response to climate change. The development of a high resolution late Quaternary climate record from southern Chile by this project is required for: (1) establishing the relationships in the timing and extent of late Quaternary glacial/climatic fluctuations between the Antarctic Peninsula and South America and (2) completing a regional framework of preliminary paleoclimatic studies, thereby leading to detailed future research on the neoglacial history of southern South America and the Antarctic Peninsula region.