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  3. 1(4), 2004
  4. Tectonomagnetic investigations in the Western Antarctic

Tectonomagnetic investigations in the Western Antarctic

JGD.
2004;
Volume 1(4), 2004, Number 1(4), 2004
: 40-44
Authors:
  1. Valentyn Maksymchuk
  2. Yu.M. Horodyskyy
  3. I. O. Chobotok
  4. V. H. Bakhmutov
  5. V. H. Kuznietsova
1
Carpathian Branch of Subbotin Institute of Geophysics of NAS of Ukraine
2
Carpathian Branch of the Institute of Geophysics of NAS of Ukraine
3
Carpathian Branch of Subbotin Institute of geophysics of NAS of Ukraine
4
Subbotin Institute of Geophysics of NAS of Ukraine
5
Carpathian Branch of the Institute of Geophysics of NAS of Ukraine

The results of tectonomagnetic investigations in the region of Antarctic station Academic Vernadsky location are presented. For the period from 1998 up to 2002 at the tectonomagnetic profile Barchany-Rasmussen 3 cycles of repeat magnetic observations were carried out, that enabled to investigate the dynamics of a magnetic field in the region of archipelago Argentine islands. Anomalous monotonous ∆F field variations above -3.5 nT in the zone of tectonic lineament of submeridian strike were detected. On the basis of mathematical modeling it has been concluded, that the nature of tectonomagnetic anomalies is conditioned by the magnetization of rocks under secular variation influence as well as by the piezomagnetic effect under the influence of tensile sublatitude tectonic stresses.

tectonomagnetism
Antarctic station Academic Vernadsky
mathematical modeling

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