1887

Abstract

New geophysical data (Fig. 1) are important because the processes in Drake Passage play a key role in understanding the stages of the geodynamic development and evolution of a vast region between the continents of South America and Antarctica located (Barker et al, 1991, Maldonado et al, 2000, Levashov et al, 2007, Schenke et al, 2009, Yegorova et al, 2009). Geological interpretation of geophysical data is complicated considerably there by the presence only isolated ocean drilling data and limited geology information about Drake Passage basement rocks. There is a lack of Moho spatial distribution data too and obtained crustal thickness values vary greatly for separate structures. That is why the attraction of new independent data about the local crust inhomogeneities and the tectonic factors influence on the formation of no uniform thickness of the sedimentary sequence is important for a comprehensive analysis of the structure of Drake Passage crust. The features of deep (up to 32000 m) geophysical inhomogeneities distribution in Drake Passage bottom structures were obtained during the marine expeditions of National Antarctic Scientific Center of Ukraine (NASC of Ukraine). The field methods employed in this study combined the methods of short-pulsed electromagnetic field formation" (FSPEF) and vertical electric-resonance sounding (VERS) (Levashov et al, 2007; Yakymchuk et al, 2008).

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201402891
2012-05-14
2021-10-19
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201402891
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error