Reduced to pole long-wavelength magnetic anomalies of Africa and Europe
To facilitate analysis of the tectonic framework for Africa, Europe and adjacent marine areas, MAGSAT scalar anomaly data are differentially reduced to the pole and compared to regional geologic information and geophysical data including surface free-air gravity anomaly data upward continued to sate...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19840017064 2023-05-15T16:50:04+02:00 Reduced to pole long-wavelength magnetic anomalies of Africa and Europe Hinze, W. J. Olivier, R. Unclassified, Unlimited, Publicly available Jan 1, 1984 http://ntrs.nasa.gov/search.jsp?R=19840017064 unknown http://ntrs.nasa.gov/search.jsp?R=19840017064 Accession ID: 84N25132 No Copyright Other Sources 46 Texas Univ. Appl. of MAGSAT to Lithospheric Modeling in South America, Part 2; p 34 Am. Geophys. Union Ann. Meeting; 1983; Baltimore, MD; United States 1984 ftnasantrs 2012-02-15T15:42:16Z To facilitate analysis of the tectonic framework for Africa, Europe and adjacent marine areas, MAGSAT scalar anomaly data are differentially reduced to the pole and compared to regional geologic information and geophysical data including surface free-air gravity anomaly data upward continued to satellite elevation (350 km) on a spherical Earth. Comparative analysis shows magnetic anomalies correspond with both ancient as well as more recent Cenozoic structural features. Anomalies associated with ancient structures are primarily caused by intra-crustal lithologic variations such as the crustal disturbance associated with the Bangui anomaly in west-central Africa. Anomalies correlative with Cenozoic tectonic elements appear to be related to Curie isotherm perturbations. A possible example of the latter is the well-defined trend of magnetic minima that characterize the Alpine orogenic belt from the Atlas mountains to Eurasia. In contrast, a well-defined magnetic satellite minimum extends across the stable craton from Finland to the Ural mountains. Prominent magnetic maxima characterize the Arabian plate, Iceland, the Kursk region of the central Russian uplift, and generally the Precambrian shields of Africa. Other/Unknown Material Iceland NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
language |
unknown |
topic |
46 |
spellingShingle |
46 Hinze, W. J. Olivier, R. Reduced to pole long-wavelength magnetic anomalies of Africa and Europe |
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46 |
description |
To facilitate analysis of the tectonic framework for Africa, Europe and adjacent marine areas, MAGSAT scalar anomaly data are differentially reduced to the pole and compared to regional geologic information and geophysical data including surface free-air gravity anomaly data upward continued to satellite elevation (350 km) on a spherical Earth. Comparative analysis shows magnetic anomalies correspond with both ancient as well as more recent Cenozoic structural features. Anomalies associated with ancient structures are primarily caused by intra-crustal lithologic variations such as the crustal disturbance associated with the Bangui anomaly in west-central Africa. Anomalies correlative with Cenozoic tectonic elements appear to be related to Curie isotherm perturbations. A possible example of the latter is the well-defined trend of magnetic minima that characterize the Alpine orogenic belt from the Atlas mountains to Eurasia. In contrast, a well-defined magnetic satellite minimum extends across the stable craton from Finland to the Ural mountains. Prominent magnetic maxima characterize the Arabian plate, Iceland, the Kursk region of the central Russian uplift, and generally the Precambrian shields of Africa. |
format |
Other/Unknown Material |
author |
Hinze, W. J. Olivier, R. |
author_facet |
Hinze, W. J. Olivier, R. |
author_sort |
Hinze, W. J. |
title |
Reduced to pole long-wavelength magnetic anomalies of Africa and Europe |
title_short |
Reduced to pole long-wavelength magnetic anomalies of Africa and Europe |
title_full |
Reduced to pole long-wavelength magnetic anomalies of Africa and Europe |
title_fullStr |
Reduced to pole long-wavelength magnetic anomalies of Africa and Europe |
title_full_unstemmed |
Reduced to pole long-wavelength magnetic anomalies of Africa and Europe |
title_sort |
reduced to pole long-wavelength magnetic anomalies of africa and europe |
publishDate |
1984 |
url |
http://ntrs.nasa.gov/search.jsp?R=19840017064 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19840017064 Accession ID: 84N25132 |
op_rights |
No Copyright |
_version_ |
1766040257939111936 |