Geologic Record of Late Wisconsinan/Holocene Ice Sheet Advance and Retreat from Ross Sea

对罗斯海和韦德尔海大陆架的海洋地质和地球物理研究提供的证据表明，在威斯康星晚期，这些地区的冰盖在陆架边缘附近搁浅，冰盖退缩到现在的位置是快速的，可能是断断续续的。该奖项支持一个项目，该项目将建立罗斯海冰盖进退的最新(威斯康星州晚期-全新世)历史。目标包括：1)重建威斯康星州晚期的古排水系统，包括冰流分流；2)重建以前的接地带位置；3)限制冰盖从陆架退缩的时间；以及4)获取地球物理、沉积学和古生物学数据，这些数据可能为冰盖退缩的环境因素提供指示。这是莱斯大学、科罗拉多大学和汉密尔顿学院共同努力的成果。该项目涉及多个领域的专家，并将与冰川学家、物理海洋学家和气候学家进行接触，他们将解决冰盖稳定性问题以及气候和冰川变化的记录。

Marine geological and geophysical studies of the Ross Sea and Weddell Sea continental shelves provide evidence that the ice sheet grounded near the shelf edge in these areas during the late Wisconsinan, and that the retreat of the ice sheet to its present position was rapid and probably episodic. This Award supports a project which will establish the most recent (late Wisconsin- Holocene) history of ice sheet advance and retreat in Ross Sea. The objectives include: 1) reconstruction the late Wisconsin paleodrainage regime, including ice stream divides; 2) reconstruction of former grounding zone positions; 3) constraint of the timing of ice sheet retreat from the shelf; and 4) acquisition of geophysical, sedimentological, and paleontological data which may provide indicators the environmental factors that may have influenced to ice sheet retreat. This is a joint effort between Rice University, the University of Colorado, and Hamilton College. The project involves experts in a wide variety of fields, and will interface with glaciologists, physical oceanographers and climatologists who will address the problem of ice sheet stability and the record of climatic and glaciological change.