Results and perspectives of tectonomagnetic investigations in the Western Antarctic

The results of long-term (1998-2005 yrs.) tectonomagnetic investigations in the Western Antarctic near the location of Ukrainian Antarctic Station «Academic Vernadsky» are reviewed. The peculiarities of the Earth’s anomalous magnetic field and its dynamic temporal variations (tectonomagnetic anomali...

Full description

Bibliographic Details
Published in:Annals of Geophysics
Main Authors: Ihor O. Chobotok, Yurij M. Horodyskyy, Vladimir G. Bakhmutov, Valentin Yu. Maksymchuk
Format: Article in Journal/Newspaper
Language:English
Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 2009
Subjects:
tectonomagnetic anomaly – geodynamics – stretching tectonic forces
Meteorology. Climatology
QC851-999
Geophysics. Cosmic physics
QC801-809
Antarctic
Argentine
Antarc*
Online Access:https://doi.org/10.4401/ag-4571
https://doaj.org/article/26899b46529643eb9f6f4eea7678f7fd
Description
Summary:The results of long-term (1998-2005 yrs.) tectonomagnetic investigations in the Western Antarctic near the location of Ukrainian Antarctic Station «Academic Vernadsky» are reviewed. The peculiarities of the Earth’s anomalous magnetic field and its dynamic temporal variations (tectonomagnetic anomalies) were studied using the newly founded tectonomagnetic polygon. Near the Argentine Archipelago intensive tectonomagnetic effects up to -2.8 nT/year were determined. Their spatial-temporal structure agrees with tectonic structure elements. We suggest that the nature of such effects is caused by a piezomagnetic effect under the influence of stretching tectonic forces (few bars per year) in sub-latitudinal direction. Perspectives of tectonomagnetic investigations in the region are discussed.

Similar Items