Aeromagnetic search for Cenozoic magmatism over the Admiralty Mountains Block (East Antarctica)
Open-File Report
2007-1047-SRP-075
By: Armadillo, E., Fausto Ferraccioli, A. Zunino, E. Bozzo, S. Rocchi, and P. Armienti
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Abstract
Cenozoic magmatic rocks of the Transantarctic Mountains provide an important window on the tectonic and
magmatic processes of the West Antarctic Rift System. Previous aeromagnetic investigations in northern Victoria Land
have delineated Cenozoic volcanic and intrusive complexes assigned to the McMurdo Volcanic Group and Meander
Intrusives over the Transantarctic Mountains. We present a new aeromagnetic anomaly map for the region north of the
Mariner Glacier to study the extent and spatial distribution of these Cenozoic rocks over the previously unexplored
Admiralty Mountains. The new map shows that the Meander Intrusives are restricted to the coastal region between the
Malta Plateau and the Daniell Peninsula. However, the McMurdo Volcanic Group rocks extend further inland, and may
delineate a hitherto unrecognised volcano-tectonic rift zone, extending as far north as the Trafalgar Glacier.
Suggested Citation
Armadillo, E., Ferraccioli, F., Zunino, A., Bozzo, E., Rocchi, S., Armienti, P., 2007, Aeromagnetic search for Cenozoic magmatism over the Admiralty Mountains Block (East Antarctica): U.S. Geological Survey Open-File Report 2007-1047-SRP-075, 4 p., https://doi.org/10.3133/ofr20071047SRP075.
ISSN: 2331-1258 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Aeromagnetic search for Cenozoic magmatism over the Admiralty Mountains Block (East Antarctica) |
| Series title | Open-File Report |
| Series number | 2007-1047-SRP-075 |
| DOI | 10.3133/ofr20071047SRP075 |
| Year Published | 2007 |
| Language | English |
| Publisher | U.S. Geological Society |
| Publisher location | Reston, VA |
| Description | 4 p. |
| Larger Work Type | Report |
| Larger Work Subtype | USGS Numbered Series |
| Larger Work Title | Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007 |
| Other Geospatial | Antarctica |
| Additional Online Files (Y/N) | N |