A high-resolution aeromagnetic survey over the Cape Roberts Rift Basin: Correlations with seismic reflection and magnetic susceptibility log data

• Main Authors: Armadillo, E., Ferraccioli, F., Gambetta, M., Talarico, F., Zunino, A., Zangani, M., Bozzo, E.
• Other Authors: Armadillo, E.; DIPTERIS – Università di Genova, Genova, Italy, Ferraccioli, F.; British Antarctic Survey, Cambridge, UK, Gambetta, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia, Talarico, F.; Dipartimento di Scienze della Terra, Università di Siena, Siena, Italy, Zunino, A.; DIPTERIS – Università di Genova, Genova, Italy, Zangani, M.; DIPTERIS – Università di Genova, Genova, Italy, Bozzo, E.; DIPTERIS – Università di Genova, Genova, Italy, Cooper, A. K.; Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305 USA, Raymond, C. R.; Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, California 91109 USA, ISAES Editorial Team; various institutes and university, DIPTERIS – Università di Genova, Genova, Italy, British Antarctic Survey, Cambridge, UK, Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia, Dipartimento di Scienze della Terra, Università di Siena, Siena, Italy, Cooper, A. K., Raymond, C. R., Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305 USA, Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, California 91109 USA, various institutes and university
• Format: Other/Unknown Material
• Language: English
• Published: USGS 2007
• Subjects: HRAM; 04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies; Victoria Land; Cape Roberts; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/2122/4069; http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea076.pdf

A high-resolution aeromagnetic survey (altitude 125 m asl, spacing 500 m , area 800 km2) was carried out in 1994 offshore of Cape Roberts by the GITARA (German ITalian Aeromagnetic Research in Antarctica) Group. The availability from drilling of whole-core physical properties logs for magnetic susceptibility, P-wave velocity and density/porosity data allows new insights to be inferred from reprocessed and reviewed HRAM aeromagnetic data. Aeromagnetic data have been reprocessed to image with greater detail the structural framework along the western flank of the Victoria Land Basin. New processing includes 2D Werner and 3D Euler deconvolution, the production of maps of the maximum horizontal gradient of pseudo-gravity, and 2D, 3D modelling. Magnetic trends and anomalies are discussed in conjunction with now available drilling results from the CRP, existing bathymetric data and recently published interpretations of a multichannel seismic reflection survey. Published Santa Barbara, CA, USA 3.4. Geomagnetismo open