Quantitative Diatom Analysis from Antarctic Peninsula Surface Sediments and a Test of Paleoclimatic Utility

[218951] Leventer该奖项支持对沿纬度样带的表层沉积物（来自现有样品）中的硅藻组合与沿纬度样带的当前海洋学和环境条件之间关系的研究。这项工作将确定利用硅藻组合作为末次盛冰期以来气候代用记录的可行性。这项工作将使用定量方法来描述硅藻组合，并将包括通过研究两个沉积物岩心中的硅藻而开发的模型的测试，一个来自布兰斯菲尔德海峡（开放水域），另一个来自杰拉什海峡的峡湾，其中已经有一些古气候和古环境指标可以用作基线。这项研究对于建立生物活动记录，特别是硅藻生成藻类，与气候和环境条件相关的可行模型至关重要。＊＊＊

9218951 Leventer This award supports a study of the relationship between diatom assemblages in surface sediments (from existing samples) along a latitudinal transect and current oceanographic and environmental conditions along the transect. This work will determine the viability of using diatom assemblages as proxy records of climate since the last glacial maximum. The work will use quantitative methods to describe diatom assemblages and will include a test of the model developed by studying diatoms in two sediment cores, one from Bransfield Strait (open water) and the other from a fjord in Gerlache Strait, in which there are already some paleoclimatic and paleoenvironmental indicators to use as a baseline. This study is essential to the development of viable models relating records of biological activity, and in particular diatom producing algae, to climatic and environmental conditions. ***