Sirius Group Microfossil Analysis of Occurrence and Assemblages, Dominion Range and Shackleton Shackleton Glacier Region

该奖项为从东南极洲自治领山脉收集的样品中进行实验室准备、硅藻提取和分析提供支持。 在南极洲外山脉的天狼星群冰川沉积物中发现的海洋硅藻化石，引起了关于其起源和意义的大量讨论。 风成搬运（本地和长距离），海洋沉积物的冰下搬运，以及来自深海的陨石喷出物的大气搬运都是硅藻的来源。在文献中有描述。 集合的组成、大小、年龄和其他特征可以用来区分这些不同的源。 在奥利弗布拉夫斯采集了大量的地层和古生物样本。 该物质是迈耶沙漠地层的一部分，该地层被认为是天狼星群最重要的矿床之一。 将进行几项测试，以检查这些地层和不同年龄景观的表面沉积物中硅藻（已知会发生）的发生情况。 该项目将核实硅藻的存在，并将在垂直露头的1米深的挖掘中沿沿着几个剖面检查硅藻的分布。 这项研究将有助于回答有关硅藻的来源及其运输机制的问题

This award provides support for laboratory preparation, diatom extraction and analysis from samples collected in the Dominion Range of East Antarctica. The presence of marine fossil diatoms in glacial deposits of the Sirius Group in the Transantarctic Mountains has led to considerable discussion regarding their origin and significance. Eolian transport (both local and long distance), sub-glacial transport from marine deposits, and atmospheric transport from the deep-sea as meteorite ejecta are all sources of diatoms which have. been described in the literature. Assemblage composition, size, age, and other features can be used to separate these different sources. Samples which yielded a wealth of stratigraphic and paleontologic information were collected at Oliver Bluffs. This material is part of the Meyer Desert Formation, which is thought to be one of the most significant deposits of the Sirius Group. Several tests will be performed to examine the occurrence of diatoms (which are known to occur) in these strata and in surface deposits across landscapes of varying age. This project will verify the presence of diatoms and will examine their distribution along several profiles from 1-meter deep excavations in a vertical outcrop. This study should help to answer questions about the source of the diatoms and the mechanisms by which they were transported