A palaeomagnetic survey of South American rock formations - Studies on rock formations from Northeast Brazil
Devonian, Carboniferous and Xriassic formations from Piaui and Maranhao States in the northeast of Brazil have been studied and palaeomagnetic pole positions deduced. During the Devonian and Carboniferous the south pole appears to have moved away from S. America in a southeasterly direction from the...
Published in: | Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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The Royal Society
1970
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Online Access: | http://dx.doi.org/10.1098/rsta.1970.0052 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.1970.0052 |
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crroyalsociety:10.1098/rsta.1970.0052 2024-06-02T08:14:32+00:00 A palaeomagnetic survey of South American rock formations - Studies on rock formations from Northeast Brazil 1970 http://dx.doi.org/10.1098/rsta.1970.0052 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.1970.0052 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences volume 267, issue 1183, page 463-480 ISSN 0080-4614 2054-0272 journal-article 1970 crroyalsociety https://doi.org/10.1098/rsta.1970.0052 2024-05-07T14:16:30Z Devonian, Carboniferous and Xriassic formations from Piaui and Maranhao States in the northeast of Brazil have been studied and palaeomagnetic pole positions deduced. During the Devonian and Carboniferous the south pole appears to have moved away from S. America in a southeasterly direction from the vicinity of Rio de Janeiro: in the Triassic it was situated near the present position of the south pole relative to S. America. These results are in good agreement with those from other formations of the same age from other parts of the continent. Thermal cleaning has been carried out. The Devonian formations were almost completely remagnetized by the Mesozoic or Tertiary geomagnetic fields and the primary magnetization is very weak. Polar wander of 40 to 50° appears to have occurred during the time interval under investigation, i.e. M. Devonian to Triassic. Article in Journal/Newspaper South pole The Royal Society American Rock ENVELOPE(-55.731,-55.731,53.300,53.300) South Pole Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences 267 1183 463 480 |
institution |
Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
Devonian, Carboniferous and Xriassic formations from Piaui and Maranhao States in the northeast of Brazil have been studied and palaeomagnetic pole positions deduced. During the Devonian and Carboniferous the south pole appears to have moved away from S. America in a southeasterly direction from the vicinity of Rio de Janeiro: in the Triassic it was situated near the present position of the south pole relative to S. America. These results are in good agreement with those from other formations of the same age from other parts of the continent. Thermal cleaning has been carried out. The Devonian formations were almost completely remagnetized by the Mesozoic or Tertiary geomagnetic fields and the primary magnetization is very weak. Polar wander of 40 to 50° appears to have occurred during the time interval under investigation, i.e. M. Devonian to Triassic. |
format |
Article in Journal/Newspaper |
title |
A palaeomagnetic survey of South American rock formations - Studies on rock formations from Northeast Brazil |
spellingShingle |
A palaeomagnetic survey of South American rock formations - Studies on rock formations from Northeast Brazil |
title_short |
A palaeomagnetic survey of South American rock formations - Studies on rock formations from Northeast Brazil |
title_full |
A palaeomagnetic survey of South American rock formations - Studies on rock formations from Northeast Brazil |
title_fullStr |
A palaeomagnetic survey of South American rock formations - Studies on rock formations from Northeast Brazil |
title_full_unstemmed |
A palaeomagnetic survey of South American rock formations - Studies on rock formations from Northeast Brazil |
title_sort |
palaeomagnetic survey of south american rock formations - studies on rock formations from northeast brazil |
publisher |
The Royal Society |
publishDate |
1970 |
url |
http://dx.doi.org/10.1098/rsta.1970.0052 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.1970.0052 |
long_lat |
ENVELOPE(-55.731,-55.731,53.300,53.300) |
geographic |
American Rock South Pole |
geographic_facet |
American Rock South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences volume 267, issue 1183, page 463-480 ISSN 0080-4614 2054-0272 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsta.1970.0052 |
container_title |
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences |
container_volume |
267 |
container_issue |
1183 |
container_start_page |
463 |
op_container_end_page |
480 |
_version_ |
1800738441012445184 |