Stratigraphy, Paleontology, Structural Geology and Paleoglaciology of the Lake Neogene Glacigene Sirius Group of the Dominion Range-Beardmore Glacier Region

该奖项支持继续研究上新世晚期- 早更新世陆缘冰川天狼星群 横贯南极山脉。 该计划包括六个星期 在自治领山脉-比尔德摩尔冰川地区的野外季节， 1990-91年南极季节，随后是实验室数据 还原 以下是主要目标 在现场和实验室研究期间处理：（1）预- 天狼星古地形与构造地质;（2）剖面 测量、横向和纵向相变化;（3）采集 间冰期山毛榉林（Nothofagus）和其他大型和 微型植物材料;（4）寻找昆虫化石、甲壳类化石、 双壳类和鱼类物质 （5）采集额外的基质和微碎屑样品 从天狼星集团的目的是扩大收集 古近纪-新近纪微体化石， 从东南极洲的内陆盆地运来， 上新世晚期-早更新世;（6）继续测试 上新世冰川在这一部分的假设， 南极洲涉及相对高频率变化 小冰盖，间冰期的发展， 温暖时期，南极洲的主要海洋入侵 与海平面较高有关的海侵 水平

This award supports continuing study of the late Pliocene- early Pleistocene terrestrial glacigene Sirius Group of the Transantarctic Mountains. The program consists of a six week field season in the Dominion Range-Beardmore Glacier region in the 1990-91 austral season, followed by laboratory data reduction. The following are among the principal targets to be addressed during the field and laboratory studies: (1) pre- Sirius paleotopography and structural geology; (2) section measurement, lateral and vertical facies changes; (3) collection of interglacial beech forest (Nothofagus) and other macro-and microplant material; (4) search for fossil insect, crustacean, bivalve, and fish material in the finer-grained lacustrine facies; (5) collect additional matrix and microclast samples from the Sirius Group with the aim of expanding the collection of Cretaceous-Paleogene-Neogene microfossils which were transported from the interior basins of East Antarctica during the late Plicoene-early Pleistocene; and (6) continue to test the hypothesis that Pliocene glaciation in this part of Antarctica involved high frequency variations of relatively small ice sheets, the development of interglacials of protracted warm periods, and major marine invasions of the antarctic interior by transgressions associated with higher stands of sea level.