Airborne geophysics as a tool for geoscientific research in Antarctica: some recent examples
The polar regions play an important role in Earth's geodynamic and climatic systems. Modern airborne geophysical surveys combine radio-echo sounding, aeromagnetic and aerogravity methods to explore the geology of these regions. This paper reviews some recent aerogeophysical investigations under...
Main Authors: | , , , |
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Other Authors: | , |
Format: | Book Part |
Language: | unknown |
Published: |
National Academy Press
2007
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Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/13738/ http://pubs.usgs.gov/of/2007/1047/srp/srp056/of2007-1047srp056.pdf |
Summary: | The polar regions play an important role in Earth's geodynamic and climatic systems. Modern airborne geophysical surveys combine radio-echo sounding, aeromagnetic and aerogravity methods to explore the geology of these regions. This paper reviews some recent aerogeophysical investigations undertaken by the British Antarctic Survey to: 1) Image subglacial rifts of Jurassic age in western Dronning Maud Land, which were associated with early Gondwana break-up; 2) Investigate crustal growth over the Antarctic Peninsula by Cretaceous arc magmatism and terrane accretion along the paleo-Pacific margin of Gondwana; 3) Analyse geological boundary conditions for presentday ice dynamics over Coats Land. |
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