New Magnetic Anomaly Map of the Antarctic

The second generation Antarctic magnetic anomaly compilation for the region south of 60 degrees S includes some 3.5 million line-km of aeromagnetic and marine magnetic data that more than doubles the initial map's near-surface database. For the new compilation, the magnetic data sets were corre...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Galindo Zaldívar, Jesús, Golynsky, A. V.
Format: Article in Journal/Newspaper
Language:English
Published: Geophysical Research Letters 2018
Subjects:
Dronning maud land
Regional aeromagnetic data
Pine Island glacier
east antartica
Antarctic
The Antarctic
Antarctic Peninsula
East Antarctica
Dronning Maud Land
West Antarctica
Wilkes Land
Pine Island Glacier
Prince Charles Mountains
Princess Elizabeth Land
Gamburtsev Subglacial Mountains
Antarc*
Antarctica
antartic*
Australian Antarctic Division
British Antarctic Survey
Korea Polar Research Institute
Pine Island
Online Access:http://hdl.handle.net/10481/57218
https://doi.org/10.1029/2018GL078153
Description
Summary:The second generation Antarctic magnetic anomaly compilation for the region south of 60 degrees S includes some 3.5 million line-km of aeromagnetic and marine magnetic data that more than doubles the initial map's near-surface database. For the new compilation, the magnetic data sets were corrected for the International Geomagnetic Reference Field, diurnal effects, and high-frequency errors and leveled, gridded, and stitched together. The new magnetic data further constrain the crustal architecture and geological evolution of the Antarctic Peninsula and the West Antarctic Rift System in West Antarctica, as well as Dronning Maud Land, the Gamburtsev Subglacial Mountains, the Prince Charles Mountains, Princess Elizabeth Land, and Wilkes Land in East Antarctica and the circumjacent oceanic margins. Overall, the magnetic anomaly compilation helps unify disparate regional geologic and geophysical studies by providing new constraints on major tectonic and magmatic processes that affected the Antarctic from Precambrian to Cenozoic times. Korea Polar Research Institute (KOPRI) programs, PM15040 and PE17050 Germany's AWI/Helmholtz Center for Polar and Marine Research Federal Institute for Geosciences and Natural Resources British Antarctic Survey/Natural Environmental Research Council Italian Antarctic Research Programme Russian Ministry of Natural Resources U.S. National Science Foundation and National Space and Aeronautics Administration Australian Antarctic Division and Antarctic Climate & Ecosystem Cooperative Research Centre French Polar Institute Global geomagnetic observatories network (INTERMAGNET)

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