Controls on the tectonomagmatic evolution of a volcanic transform margin: the Vøring Transform Margin, NEAtlantic
Ocean bottom seismograph (OBS), multichannel seismic and potential field data reveal the structure of the Vøring Transform Margin (VTM). This transform margin is located at the landward extension of the Jan Mayen Fracture Zone along the southern edge of the Vøring Plateau. The margin consists of two...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.557.2124 2023-05-15T16:57:03+02:00 Controls on the tectonomagmatic evolution of a volcanic transform margin: the Vøring Transform Margin, NEAtlantic C. Berndt R. Mjelde S. Planke H. Shimamura J. I. Faleide The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.2124 http://www.noc.soton.ac.uk/gg/people/berndt/berndt-01b.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.2124 http://www.noc.soton.ac.uk/gg/people/berndt/berndt-01b.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.noc.soton.ac.uk/gg/people/berndt/berndt-01b.pdf holm 1987 approximately at 55 Ma before present text 2001 ftciteseerx 2016-01-08T11:49:56Z Ocean bottom seismograph (OBS), multichannel seismic and potential field data reveal the structure of the Vøring Transform Margin (VTM). This transform margin is located at the landward extension of the Jan Mayen Fracture Zone along the southern edge of the Vøring Plateau. The margin consists of two distinctive segments. The northwestern segment is characterized by large amounts of volcanic material. The new OBS data reveal a 30–40 km wide and 17 km thick high-velocity body between underplated continental crust to the northeast and normal oceanic crust in the southwest. The southeastern segment of the mar is similar to transform margins elsewhere. It is characterized by a 20–30 km wide transform margin high and a narrow continent-ocean transition. The volcanic sequences along this margin segment are less than 1 km thick. We conclude from the spatial correspondence of decreased volcanism and the location of the fracture zone, that the amount of volcanism was influenced by the tectonic setting. We propose that (1) lateral heat transport from the oceanic lithosphere to the adjacent continental lithosphere decreased the ambient mantle temperature and melt production along the entire transform margin and (2) that right-stepping of the left-lateral shear zone at the northwestern margin segment caused lithospheric thinning and increased volcanism. The investigated data show no evidence that the breakup volcanism influenced the tectonic development of the southeastern VTM. Text Jan Mayen Unknown Jan Mayen Jan Mayen Fracture Zone ENVELOPE(-8.000,-8.000,71.200,71.200) Vøring Plateau ENVELOPE(4.000,4.000,67.000,67.000) |
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ftciteseerx |
language |
English |
topic |
holm 1987 approximately at 55 Ma before present |
spellingShingle |
holm 1987 approximately at 55 Ma before present C. Berndt R. Mjelde S. Planke H. Shimamura J. I. Faleide Controls on the tectonomagmatic evolution of a volcanic transform margin: the Vøring Transform Margin, NEAtlantic |
topic_facet |
holm 1987 approximately at 55 Ma before present |
description |
Ocean bottom seismograph (OBS), multichannel seismic and potential field data reveal the structure of the Vøring Transform Margin (VTM). This transform margin is located at the landward extension of the Jan Mayen Fracture Zone along the southern edge of the Vøring Plateau. The margin consists of two distinctive segments. The northwestern segment is characterized by large amounts of volcanic material. The new OBS data reveal a 30–40 km wide and 17 km thick high-velocity body between underplated continental crust to the northeast and normal oceanic crust in the southwest. The southeastern segment of the mar is similar to transform margins elsewhere. It is characterized by a 20–30 km wide transform margin high and a narrow continent-ocean transition. The volcanic sequences along this margin segment are less than 1 km thick. We conclude from the spatial correspondence of decreased volcanism and the location of the fracture zone, that the amount of volcanism was influenced by the tectonic setting. We propose that (1) lateral heat transport from the oceanic lithosphere to the adjacent continental lithosphere decreased the ambient mantle temperature and melt production along the entire transform margin and (2) that right-stepping of the left-lateral shear zone at the northwestern margin segment caused lithospheric thinning and increased volcanism. The investigated data show no evidence that the breakup volcanism influenced the tectonic development of the southeastern VTM. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
C. Berndt R. Mjelde S. Planke H. Shimamura J. I. Faleide |
author_facet |
C. Berndt R. Mjelde S. Planke H. Shimamura J. I. Faleide |
author_sort |
C. Berndt |
title |
Controls on the tectonomagmatic evolution of a volcanic transform margin: the Vøring Transform Margin, NEAtlantic |
title_short |
Controls on the tectonomagmatic evolution of a volcanic transform margin: the Vøring Transform Margin, NEAtlantic |
title_full |
Controls on the tectonomagmatic evolution of a volcanic transform margin: the Vøring Transform Margin, NEAtlantic |
title_fullStr |
Controls on the tectonomagmatic evolution of a volcanic transform margin: the Vøring Transform Margin, NEAtlantic |
title_full_unstemmed |
Controls on the tectonomagmatic evolution of a volcanic transform margin: the Vøring Transform Margin, NEAtlantic |
title_sort |
controls on the tectonomagmatic evolution of a volcanic transform margin: the vøring transform margin, neatlantic |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.2124 http://www.noc.soton.ac.uk/gg/people/berndt/berndt-01b.pdf |
long_lat |
ENVELOPE(-8.000,-8.000,71.200,71.200) ENVELOPE(4.000,4.000,67.000,67.000) |
geographic |
Jan Mayen Jan Mayen Fracture Zone Vøring Plateau |
geographic_facet |
Jan Mayen Jan Mayen Fracture Zone Vøring Plateau |
genre |
Jan Mayen |
genre_facet |
Jan Mayen |
op_source |
http://www.noc.soton.ac.uk/gg/people/berndt/berndt-01b.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.557.2124 http://www.noc.soton.ac.uk/gg/people/berndt/berndt-01b.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766048312648007680 |