Studies of Subglacial Cores from the Base of Ice Stream B, Antarctica

该奖项支持一项详细的冰下物质实验室研究计划，该研究从西南极B冰流底部的正下方获得。要检查的四个活塞芯的长度从2米到3米不等。这些岩心将被分析其沉积学特征及其物理和力学性质。这些研究将有助于检验组成这些岩芯的物质是冰川的初步结论，直到冰下剪切带被输送到冰下剪切带，该剪切带的变形润滑了冰流的底部，使冰流的快速运动特征成为可能。

This award supports a program detailed of laboratory studies of subglacial materials obtained from immediately below the base of Ice Stream B in West Antarctica. The four piston cores to be examined range in length from 2 to 3 meters. These core will be analyzed for their sedimentological characteristics and their physical and mechanical properties. These studies will help to test the initial conclusion that the material composing these cores is glacial till that has been transported in a subglacial shear zone whose deformation lubricates the base of the ice stream, making possible the rapid motion characteristic of the ice streams.