Sub-Ice Relief and Geology of East Antarctica ...

• Main Author: Drewry, David J
• Format: Thesis
• Language: English
• Published: Apollo - University of Cambridge Repository 1973
• Subjects: Antarc*; Antarctica; East Antarctica; Scott Polar Research Institute
• Online Access: https://dx.doi.org/10.17863/cam.14164; https://www.repository.cam.ac.uk/handle/1810/268052

Continuous airborne radio echo sounding by the Scott Polar Research Institute has enabled delimitation of the sub-ice topographic configuration of Eastern Antarctica. Reduction and evaluation of profiles of ice/bedrock interface, combined with critically assessed results of previous geophysical and geological investigations, has allowed some interpretation of the geological structure and glacial history of East Antarctica. A comparison of the relative and absolute accuracy of radio echo sounding results and seismic-gravity data in East Antarctica indicates an average agreement between the different techniques to better than 10%. The results of some previously unchecked traverses, however, have been revised. Maps and profiles of bedrock relief have been compiled and are discussed in general. They have provided the basis for a quantitative investigation and regionalization of sub-ice relief based upon the statistical variation of the vertical and horizontal components of surface roughness. The resulting. ...