Title	Geophysical studies of ocean floor structure in the Powell Basin (West Antarctica) [Doslidzhennya geofizichnikh anomaliy struktur dna ulogovini Pouyell (zakhidna Antarktika)]
Author	Solovyov, V.D.; Korchagin, I.M.; Vashchenko, V.M.
Author Affil	Solovyov, V.D., National Academy of Sciences of Ukraine, S. I. Subbotin Institute of Geophysics, Kiev, Ukraine. Other: National Antarctic Research Center, Russian Federation
Source	Ukrayins'kiy Antarktichniy Zhurnal = Ukrainian Antarctic Journal, Vol.6-7, p.22- 31. Publisher: Ukrayins'kiy Antarktichniy Tsentr, Kiev, Ukraine. ISSN: 1727- 7485
Publication Date	2008
Notes	In Ukrainian with English and Russian summaries. 6 refs. GeoRef Acc. No: 301198
Index Terms	Antarctica--Antarctic Peninsula; Scotia Sea; Pacific Ocean--South Pacific; Southern Ocean; Antarctica--West Antarctica; Antarctic Peninsula; Antarctica; batholiths; bathymetry; continental crust; Cretaceous; crust; deep-seated structures; geophysical methods; geophysical surveys; intrusions; magnetic anomalies; magnetic field; magnetic methods; Mesozoic; ocean floors; Pacific Ocean; paleomagnetism; Powell Basin; research vessels; South Pacific; surveys; West Antarctica
Abstract	Magnetic anomalies obtained during Ukrainian Antarctic expeditions show large amplitude in the northern margin of the Powell Basin. These anomalies are attributed to the continuation of the branches of the Antarctic Peninsula Pacific Margin Anomaly. Different variants of connection between this anomaly and the anomalies in the Powell Basin are discussed. It may be the variant with the occurrence of two branches. One of them lies along the South Scotia Ridge whereas the second, more southern branch, may be located in the eastern and western passive margins of the Powell Basin. The upper surface of magnetic bodies is consistent with anomaly horizon at depth of 3-18 km that was obtained from the modelling of deep crust structure by VERS method.
Publication Type	journal article
Record ID	88886