MAGNETIC ANOMALIES OF PRECAMBRIAN TERRANES OF THE EAST ANTARCTIC SHIELD COASTAL REGION (20°E-50°E)
Extensive regional magnetic survey flights with a line-spacing of about 20km were conducted by Polar Marine Geological Research Expedition (PMGRE) in 1972,1986,1988 and 1990 over the 20°E-50°E coastal region of East Antarctica. The flights total more than 34000 line-km of total magnetic intensity da...
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VNIIOkeangeologia
1996
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ftnipr:oai:nipr.repo.nii.ac.jp:00002821 2023-05-15T13:49:00+02:00 MAGNETIC ANOMALIES OF PRECAMBRIAN TERRANES OF THE EAST ANTARCTIC SHIELD COASTAL REGION (20°E-50°E) ノギ ヨシフミ シブヤ カズオ Alexander V. GOLYNSKY Valery N. MASOLOV Yoshifumi NOGI Kazuo SHIBUYA Chris TARLOWSKY Peter WELLMAN 1996-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2821 http://id.nii.ac.jp/1291/00002821/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2821&item_no=1&attribute_id=18&file_no=1 en eng VNIIOkeangeologia Polar Marine Geological Research Expedition National Institute of Polar Research Australian Geological Survey Organisation https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2821 http://id.nii.ac.jp/1291/00002821/ AA1072335X Proceedings of the NIPR Symposium on Antarctic Geosciences, 9, 24-39(1996-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2821&item_no=1&attribute_id=18&file_no=1 magnetic anomaly 20°E-50°E 1 : 10000000 map ACMMA Precambrian terrane Departmental Bulletin Paper P(論文) 1996 ftnipr 2022-11-26T19:42:17Z Extensive regional magnetic survey flights with a line-spacing of about 20km were conducted by Polar Marine Geological Research Expedition (PMGRE) in 1972,1986,1988 and 1990 over the 20°E-50°E coastal region of East Antarctica. The flights total more than 34000 line-km of total magnetic intensity data acquired along north-south trending profiles. Magnetic anomaly maps compiled from digital data provide a synoptic view of major magnetic anomalies and the corresponding tectonic/geologic features of the Eastern Dronning Maud Land nd the Western Enderby Land. Availability of digital data allowed an application of various enhancement techniques and provided new interpretative information from the magnetic anomalies. The filtered and shaded relief maps have characteristic anomaly patterns (trends, amplitudes and wavelengths) which correlate with Precambrian tectonic features of the extensive Late Proterozoic area, and of the Archaean cratonic block of Enderby Land (Napier Complex). Of particular interest is the linear magnetic anomaly observed along the continental slope and shelf area; the Antarctic Continental Margin Magnetic Anomaly, ACMMA. This is a continentalscale crustal discontinuity formed during the Gondwana breakup. The archived aeromagnetic data will serve as the database for future production of the 'Digital Magnetic Anomaly Map of Antarctica' in the framework of the Scientific Committee on Antarctic Research/International Association of Geomagnetism and Aeronomy (SCAR/IAGA) compilation. Report Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica Enderby Land SCAR Scientific Committee on Antarctic Research National Institute of Polar Research Repository, Japan Antarctic The Antarctic East Antarctica Dronning Maud Land Napier ENVELOPE(-58.440,-58.440,-62.167,-62.167) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
magnetic anomaly 20°E-50°E 1 : 10000000 map ACMMA Precambrian terrane |
spellingShingle |
magnetic anomaly 20°E-50°E 1 : 10000000 map ACMMA Precambrian terrane ノギ ヨシフミ シブヤ カズオ Alexander V. GOLYNSKY Valery N. MASOLOV Yoshifumi NOGI Kazuo SHIBUYA Chris TARLOWSKY Peter WELLMAN MAGNETIC ANOMALIES OF PRECAMBRIAN TERRANES OF THE EAST ANTARCTIC SHIELD COASTAL REGION (20°E-50°E) |
topic_facet |
magnetic anomaly 20°E-50°E 1 : 10000000 map ACMMA Precambrian terrane |
description |
Extensive regional magnetic survey flights with a line-spacing of about 20km were conducted by Polar Marine Geological Research Expedition (PMGRE) in 1972,1986,1988 and 1990 over the 20°E-50°E coastal region of East Antarctica. The flights total more than 34000 line-km of total magnetic intensity data acquired along north-south trending profiles. Magnetic anomaly maps compiled from digital data provide a synoptic view of major magnetic anomalies and the corresponding tectonic/geologic features of the Eastern Dronning Maud Land nd the Western Enderby Land. Availability of digital data allowed an application of various enhancement techniques and provided new interpretative information from the magnetic anomalies. The filtered and shaded relief maps have characteristic anomaly patterns (trends, amplitudes and wavelengths) which correlate with Precambrian tectonic features of the extensive Late Proterozoic area, and of the Archaean cratonic block of Enderby Land (Napier Complex). Of particular interest is the linear magnetic anomaly observed along the continental slope and shelf area; the Antarctic Continental Margin Magnetic Anomaly, ACMMA. This is a continentalscale crustal discontinuity formed during the Gondwana breakup. The archived aeromagnetic data will serve as the database for future production of the 'Digital Magnetic Anomaly Map of Antarctica' in the framework of the Scientific Committee on Antarctic Research/International Association of Geomagnetism and Aeronomy (SCAR/IAGA) compilation. |
format |
Report |
author |
ノギ ヨシフミ シブヤ カズオ Alexander V. GOLYNSKY Valery N. MASOLOV Yoshifumi NOGI Kazuo SHIBUYA Chris TARLOWSKY Peter WELLMAN |
author_facet |
ノギ ヨシフミ シブヤ カズオ Alexander V. GOLYNSKY Valery N. MASOLOV Yoshifumi NOGI Kazuo SHIBUYA Chris TARLOWSKY Peter WELLMAN |
author_sort |
ノギ ヨシフミ |
title |
MAGNETIC ANOMALIES OF PRECAMBRIAN TERRANES OF THE EAST ANTARCTIC SHIELD COASTAL REGION (20°E-50°E) |
title_short |
MAGNETIC ANOMALIES OF PRECAMBRIAN TERRANES OF THE EAST ANTARCTIC SHIELD COASTAL REGION (20°E-50°E) |
title_full |
MAGNETIC ANOMALIES OF PRECAMBRIAN TERRANES OF THE EAST ANTARCTIC SHIELD COASTAL REGION (20°E-50°E) |
title_fullStr |
MAGNETIC ANOMALIES OF PRECAMBRIAN TERRANES OF THE EAST ANTARCTIC SHIELD COASTAL REGION (20°E-50°E) |
title_full_unstemmed |
MAGNETIC ANOMALIES OF PRECAMBRIAN TERRANES OF THE EAST ANTARCTIC SHIELD COASTAL REGION (20°E-50°E) |
title_sort |
magnetic anomalies of precambrian terranes of the east antarctic shield coastal region (20°e-50°e) |
publisher |
VNIIOkeangeologia |
publishDate |
1996 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2821 http://id.nii.ac.jp/1291/00002821/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2821&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(-58.440,-58.440,-62.167,-62.167) |
geographic |
Antarctic The Antarctic East Antarctica Dronning Maud Land Napier |
geographic_facet |
Antarctic The Antarctic East Antarctica Dronning Maud Land Napier |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica Enderby Land SCAR Scientific Committee on Antarctic Research |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica Enderby Land SCAR Scientific Committee on Antarctic Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2821 http://id.nii.ac.jp/1291/00002821/ AA1072335X Proceedings of the NIPR Symposium on Antarctic Geosciences, 9, 24-39(1996-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2821&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250317388709888 |