Warm Climate Antarctic Ice Dynamics: Sirius Formation Evidence

该奖项支持对该地区进行详细的地质调查。 南极洲天狼星组，以确定：1）其 与高山冰川和冰盖的关系; 2）其年龄和 3）封闭海相的来源 微化石 这项研究的结果将提供一个关键的测试， 关于天狼星形成起源的主要假设， 因此，有助于解决南极冰 对第三纪气候变暖的床单反应。 鉴于重要的 南极冰盖在全球气候中的作用， 新知识将大大有助于解决全球规模的 古气候问题，主要是通过限制解释 深海氧同位素记录。 这些数据也将 允许测试和调整冰盖模型。

This award supports a detailed geological investigation of the Sirius Formation, Antarctica, in order to determine: 1) its relation to alpine glaciers and ice sheets; 2) its age and stratigraphy; and 3) the source of the enclosed marine microfossils. The results of this research will provide a critical test for the leading hypotheses of the origin of the Sirius Formation and, thereby, contribute significantly to resolving Antarctic Ice Sheet response to Tertiary climate warmth. Given the important role that the Antarctic Ice Sheet plays in global climate, this new knowledge will significantly aid resolution of global-scale paleoclimate problems, principally by constraining interpretation of the deep sea oxygen-isotope record. This data will also permit the testing and tuning of ice sheet models.