GEOPHYSICAL STUDIES OF THE CRUSTAL STRUCTURE IN THE EAST ANTARCTICA
A brief historical review of geological and geophysical research of the Antarctic continent is given. Methods of seismic, gravimetric and geomagnetic observations conducted by the First-the Fifth Soviet Antarctic Expeditions are described. The thickness of the Earth's crust in the East Antarcti...
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ftdtic:AD0623453 2023-05-15T14:00:27+02:00 GEOPHYSICAL STUDIES OF THE CRUSTAL STRUCTURE IN THE EAST ANTARCTICA Ushakov,S. A. AERONAUTICAL CHART AND INFORMATION CENTER ST LOUIS MO LINGUISTIC SECTION 1965-06 text/html http://www.dtic.mil/docs/citations/AD0623453 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0623453 en eng http://www.dtic.mil/docs/citations/AD0623453 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS (*STRUCTURAL GEOLOGY POLAR REGIONS) (*POLAR REGIONS STRUCTURAL GEOLOGY) LITHOSPHERE GEOPHYSICAL PROSPECTING GLACIERS GEOPHYSICS USSR Text 1965 ftdtic 2016-02-18T18:49:40Z A brief historical review of geological and geophysical research of the Antarctic continent is given. Methods of seismic, gravimetric and geomagnetic observations conducted by the First-the Fifth Soviet Antarctic Expeditions are described. The thickness of the Earth's crust in the East Antarctica is determined according to Bouguer anomalies. It is found that the thickness of the crust about 35 km is prevailing on the larger part of the investigated territory and this is characteristic of a platform structure of the region. Some sections of the platform have undergone a considerable activization in the recent geological time. The activized sections are grouped into two types according to the thickness of the crust: (1) Sections the activization of which was not accompanied by an increase of the crust's thickness. These are located mainly in the peripheral zone of the East Antarctic platform. (2) Sections the acticization of which was accompanied by a considerable increase (up to 55 km) of the Earth's crust. These constitute the Gambourtsev Mountains. (Geofizicheskie Issledovaniya Stroeniya Zemnoi Kory v Vostochnoi Antarktide) Trans. of mono. Rezul'tati Issledovanii po Programme Mezhdunarodnogo Geofichcheskogo Goda, Moscow, 1963 93p. Available copy will not permit fully legible reproduction. Reproduction will be made if requested by users of DDC. Copy is available for public sale. Text Antarc* Antarctic Antarctica East Antarctica Defense Technical Information Center: DTIC Technical Reports database Antarctic East Antarctica The Antarctic |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
(*STRUCTURAL GEOLOGY POLAR REGIONS) (*POLAR REGIONS STRUCTURAL GEOLOGY) LITHOSPHERE GEOPHYSICAL PROSPECTING GLACIERS GEOPHYSICS USSR |
spellingShingle |
(*STRUCTURAL GEOLOGY POLAR REGIONS) (*POLAR REGIONS STRUCTURAL GEOLOGY) LITHOSPHERE GEOPHYSICAL PROSPECTING GLACIERS GEOPHYSICS USSR Ushakov,S. A. GEOPHYSICAL STUDIES OF THE CRUSTAL STRUCTURE IN THE EAST ANTARCTICA |
topic_facet |
(*STRUCTURAL GEOLOGY POLAR REGIONS) (*POLAR REGIONS STRUCTURAL GEOLOGY) LITHOSPHERE GEOPHYSICAL PROSPECTING GLACIERS GEOPHYSICS USSR |
description |
A brief historical review of geological and geophysical research of the Antarctic continent is given. Methods of seismic, gravimetric and geomagnetic observations conducted by the First-the Fifth Soviet Antarctic Expeditions are described. The thickness of the Earth's crust in the East Antarctica is determined according to Bouguer anomalies. It is found that the thickness of the crust about 35 km is prevailing on the larger part of the investigated territory and this is characteristic of a platform structure of the region. Some sections of the platform have undergone a considerable activization in the recent geological time. The activized sections are grouped into two types according to the thickness of the crust: (1) Sections the activization of which was not accompanied by an increase of the crust's thickness. These are located mainly in the peripheral zone of the East Antarctic platform. (2) Sections the acticization of which was accompanied by a considerable increase (up to 55 km) of the Earth's crust. These constitute the Gambourtsev Mountains. (Geofizicheskie Issledovaniya Stroeniya Zemnoi Kory v Vostochnoi Antarktide) Trans. of mono. Rezul'tati Issledovanii po Programme Mezhdunarodnogo Geofichcheskogo Goda, Moscow, 1963 93p. Available copy will not permit fully legible reproduction. Reproduction will be made if requested by users of DDC. Copy is available for public sale. |
author2 |
AERONAUTICAL CHART AND INFORMATION CENTER ST LOUIS MO LINGUISTIC SECTION |
format |
Text |
author |
Ushakov,S. A. |
author_facet |
Ushakov,S. A. |
author_sort |
Ushakov,S. A. |
title |
GEOPHYSICAL STUDIES OF THE CRUSTAL STRUCTURE IN THE EAST ANTARCTICA |
title_short |
GEOPHYSICAL STUDIES OF THE CRUSTAL STRUCTURE IN THE EAST ANTARCTICA |
title_full |
GEOPHYSICAL STUDIES OF THE CRUSTAL STRUCTURE IN THE EAST ANTARCTICA |
title_fullStr |
GEOPHYSICAL STUDIES OF THE CRUSTAL STRUCTURE IN THE EAST ANTARCTICA |
title_full_unstemmed |
GEOPHYSICAL STUDIES OF THE CRUSTAL STRUCTURE IN THE EAST ANTARCTICA |
title_sort |
geophysical studies of the crustal structure in the east antarctica |
publishDate |
1965 |
url |
http://www.dtic.mil/docs/citations/AD0623453 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0623453 |
geographic |
Antarctic East Antarctica The Antarctic |
geographic_facet |
Antarctic East Antarctica The Antarctic |
genre |
Antarc* Antarctic Antarctica East Antarctica |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0623453 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766269543559200768 |