Regional magnetic anomaly constraints on continental rifting
Radially polarized MAGSAT anomalies of North and South America, Europe, Africa, India, Australia and Antarctica demonstrate remarkably detailed correlation of regional magnetic lithospheric sources across rifted margins when plotted on a reconstruction of Pangea. These major magnetic features appare...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19850023287 2023-05-15T13:40:59+02:00 Regional magnetic anomaly constraints on continental rifting Vonfrese, R. R. B. Hinze, W. J. Olivier, R. Bentley, C. R. Unclassified, Unlimited, Publicly available JAN 1, 1985 http://ntrs.nasa.gov/search.jsp?R=19850023287 unknown http://ntrs.nasa.gov/search.jsp?R=19850023287 Accession ID: 85N31600 No Copyright CASI 43 Purdue Univ. Improving the Geol. Interpretation of Magnetic and Gravity Satellite Anomalies; 12 p 1985 ftnasantrs 2012-02-15T16:09:55Z Radially polarized MAGSAT anomalies of North and South America, Europe, Africa, India, Australia and Antarctica demonstrate remarkably detailed correlation of regional magnetic lithospheric sources across rifted margins when plotted on a reconstruction of Pangea. These major magnetic features apparently preserve their integrity until a superimposed metamorphoric event alters the magnitude and pattern of the anomalies. The longevity of continental scale magnetic anomalies contrasts markedly with that of regional gravity anomalies which tend to reflect predominantly isostatic adjustments associated with neo-tectonism. First observed as a result of NASA's magnetic satellite programs, these anomalies provide new and fundamental constraints on the geologic evolution and dynamics of the continents and oceans. Accordingly, satellite magnetic observations provide a further tool for investigating continental drift to compliment other lines of evidence in paleoclimatology, paleontology, paleomagnetism, and studies of the radiometric ages and geometric fit of the continents. Other/Unknown Material Antarc* Antarctica NASA Technical Reports Server (NTRS) |
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43 Vonfrese, R. R. B. Hinze, W. J. Olivier, R. Bentley, C. R. Regional magnetic anomaly constraints on continental rifting |
topic_facet |
43 |
description |
Radially polarized MAGSAT anomalies of North and South America, Europe, Africa, India, Australia and Antarctica demonstrate remarkably detailed correlation of regional magnetic lithospheric sources across rifted margins when plotted on a reconstruction of Pangea. These major magnetic features apparently preserve their integrity until a superimposed metamorphoric event alters the magnitude and pattern of the anomalies. The longevity of continental scale magnetic anomalies contrasts markedly with that of regional gravity anomalies which tend to reflect predominantly isostatic adjustments associated with neo-tectonism. First observed as a result of NASA's magnetic satellite programs, these anomalies provide new and fundamental constraints on the geologic evolution and dynamics of the continents and oceans. Accordingly, satellite magnetic observations provide a further tool for investigating continental drift to compliment other lines of evidence in paleoclimatology, paleontology, paleomagnetism, and studies of the radiometric ages and geometric fit of the continents. |
format |
Other/Unknown Material |
author |
Vonfrese, R. R. B. Hinze, W. J. Olivier, R. Bentley, C. R. |
author_facet |
Vonfrese, R. R. B. Hinze, W. J. Olivier, R. Bentley, C. R. |
author_sort |
Vonfrese, R. R. B. |
title |
Regional magnetic anomaly constraints on continental rifting |
title_short |
Regional magnetic anomaly constraints on continental rifting |
title_full |
Regional magnetic anomaly constraints on continental rifting |
title_fullStr |
Regional magnetic anomaly constraints on continental rifting |
title_full_unstemmed |
Regional magnetic anomaly constraints on continental rifting |
title_sort |
regional magnetic anomaly constraints on continental rifting |
publishDate |
1985 |
url |
http://ntrs.nasa.gov/search.jsp?R=19850023287 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
CASI |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19850023287 Accession ID: 85N31600 |
op_rights |
No Copyright |
_version_ |
1766144160732020736 |