Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland
Udgivelsesdato: 2005-11-15 The results of a palaeomagnetic sampling carried out along two vertical profiles (altogether 19 lavaflows, 126 samples) covering the entire stratigraphy of the Talerua Member lavas (~39 Myr old) that outcrop on the island Hareøen are presented and represent some of the you...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/d2a11b90-b1f1-11db-bee9-02004c4f4f50 2024-09-15T18:08:34+00:00 Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland Abrahamsen, N. Schmidt, Anne G. Riisager, P. Riisager, J. Pedersen, A.K. Voo, R. Van der 2005 https://pure.au.dk/portal/en/publications/d2a11b90-b1f1-11db-bee9-02004c4f4f50 eng eng https://pure.au.dk/portal/en/publications/d2a11b90-b1f1-11db-bee9-02004c4f4f50 info:eu-repo/semantics/restrictedAccess Abrahamsen , N , Schmidt , A G , Riisager , P , Riisager , J , Pedersen , A K & Voo , R V D 2005 , ' Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland ' , Bulletin of the Geological Society of Denmark , vol. 52 , pp. 27-38 . Palæomagnetisme Magnetisk polaritet Grønland Paleomag Mag. polarity Greenland Paleogene North Atlantic Paleomagnetism West Greenland article 2005 ftuniaarhuspubl 2024-07-11T05:34:28Z Udgivelsesdato: 2005-11-15 The results of a palaeomagnetic sampling carried out along two vertical profiles (altogether 19 lavaflows, 126 samples) covering the entire stratigraphy of the Talerua Member lavas (~39 Myr old) that outcrop on the island Hareøen are presented and represent some of the youngest volcanism in the West Greenland flood volcanic province. Rock magnetic experiments and microprobe analysis show that the dominant magnetic mineral in all studied lavas is titanomagnetite that has experienced variable amounts of high temperature deuteric oxidation as well as low temperature hydro-thermal oxidation. Based on detailed demagnetisation experiments, well-defined paleomagnetic site-mean directions were isolated from all 19 lavas. The composite profile contains two magnetic polarity zones suggesting a maximum duration of Talerua Member volcanism of ~1.4 Myr. After grouping flows indicating the same remanent magnetic field direction, 13 individual readings of the paleomagnetic fields were obtained. The paleomagnetic pole with coordinates 76.3°N, 201.5°E (A95=7.4°, K=32.7, N=13) is in good accordance with paleomagnetic poles from other continents rotated back to Greenland using plate kinematic rotation poles. Article in Journal/Newspaper Greenland Grønland North Atlantic Aarhus University: Research |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Palæomagnetisme Magnetisk polaritet Grønland Paleomag Mag. polarity Greenland Paleogene North Atlantic Paleomagnetism West Greenland |
spellingShingle |
Palæomagnetisme Magnetisk polaritet Grønland Paleomag Mag. polarity Greenland Paleogene North Atlantic Paleomagnetism West Greenland Abrahamsen, N. Schmidt, Anne G. Riisager, P. Riisager, J. Pedersen, A.K. Voo, R. Van der Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland |
topic_facet |
Palæomagnetisme Magnetisk polaritet Grønland Paleomag Mag. polarity Greenland Paleogene North Atlantic Paleomagnetism West Greenland |
description |
Udgivelsesdato: 2005-11-15 The results of a palaeomagnetic sampling carried out along two vertical profiles (altogether 19 lavaflows, 126 samples) covering the entire stratigraphy of the Talerua Member lavas (~39 Myr old) that outcrop on the island Hareøen are presented and represent some of the youngest volcanism in the West Greenland flood volcanic province. Rock magnetic experiments and microprobe analysis show that the dominant magnetic mineral in all studied lavas is titanomagnetite that has experienced variable amounts of high temperature deuteric oxidation as well as low temperature hydro-thermal oxidation. Based on detailed demagnetisation experiments, well-defined paleomagnetic site-mean directions were isolated from all 19 lavas. The composite profile contains two magnetic polarity zones suggesting a maximum duration of Talerua Member volcanism of ~1.4 Myr. After grouping flows indicating the same remanent magnetic field direction, 13 individual readings of the paleomagnetic fields were obtained. The paleomagnetic pole with coordinates 76.3°N, 201.5°E (A95=7.4°, K=32.7, N=13) is in good accordance with paleomagnetic poles from other continents rotated back to Greenland using plate kinematic rotation poles. |
format |
Article in Journal/Newspaper |
author |
Abrahamsen, N. Schmidt, Anne G. Riisager, P. Riisager, J. Pedersen, A.K. Voo, R. Van der |
author_facet |
Abrahamsen, N. Schmidt, Anne G. Riisager, P. Riisager, J. Pedersen, A.K. Voo, R. Van der |
author_sort |
Abrahamsen, N. |
title |
Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland |
title_short |
Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland |
title_full |
Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland |
title_fullStr |
Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland |
title_full_unstemmed |
Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland |
title_sort |
paleomagnetism of eocene talerua member lavas on hareøen island, west greenland |
publishDate |
2005 |
url |
https://pure.au.dk/portal/en/publications/d2a11b90-b1f1-11db-bee9-02004c4f4f50 |
genre |
Greenland Grønland North Atlantic |
genre_facet |
Greenland Grønland North Atlantic |
op_source |
Abrahamsen , N , Schmidt , A G , Riisager , P , Riisager , J , Pedersen , A K & Voo , R V D 2005 , ' Paleomagnetism of Eocene Talerua Member Lavas on Hareøen Island, West Greenland ' , Bulletin of the Geological Society of Denmark , vol. 52 , pp. 27-38 . |
op_relation |
https://pure.au.dk/portal/en/publications/d2a11b90-b1f1-11db-bee9-02004c4f4f50 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1810445934424752128 |