Volcanic History and Tectonics of the North Langjökull Region, Central Iceland
The geology of the area around the northern part of the Langjökull ice sheet in central Iceland is outlined. This area includes the termination of the western neovolcanic zone, two silicic centers, and basaltic interglacial, intraglacial, and postglacial volcanoes. The lava succession becomes older...
Published in: | Canadian Journal of Earth Sciences |
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Canadian Science Publishing
1973
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Online Access: | http://dx.doi.org/10.1139/e73-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/e73-019 |
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crcansciencepubl:10.1139/e73-019 2023-12-17T10:31:48+01:00 Volcanic History and Tectonics of the North Langjökull Region, Central Iceland Piper, J. D. A. 1973 http://dx.doi.org/10.1139/e73-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/e73-019 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 10, issue 2, page 164-179 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1973 crcansciencepubl https://doi.org/10.1139/e73-019 2023-11-19T13:38:33Z The geology of the area around the northern part of the Langjökull ice sheet in central Iceland is outlined. This area includes the termination of the western neovolcanic zone, two silicic centers, and basaltic interglacial, intraglacial, and postglacial volcanoes. The lava succession becomes older to the northwest of the area where the zone of young volcanoes gives away to a pile of lavas of pre-Bruhnes epoch age which dip at low angles towards the active zone.This active zone undergoes a change in strike from NE–SW to north–south near latitude 64 °55′N and the volcanoes north of this are smaller in volume than those on the southern extension of the zone. The area of Bruhnes epoch activity dies out above latitude 65 °10′N but much of the area between here and the north coast of Iceland was a line of volcanic activity during the preceding Matuyama epoch.The northern part of the western active zone in Iceland became inactive in late Pleistocene times, and the southern part of the zone is an area of continuing crustal growth. The zone of active volcanism does not terminate against a transform fault and crustal growth is accommodated by deformation of the crustal plate. Lines of crustal growth which subsequently die out can be invoked to explain the anticline and syncline structures in the lava pile and the currently-active Snaefellsnes zone in western Iceland. Article in Journal/Newspaper Ice Sheet Iceland Langjökull Canadian Science Publishing (via Crossref) Langjökull ENVELOPE(-20.145,-20.145,64.654,64.654) Canadian Journal of Earth Sciences 10 2 164 179 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Piper, J. D. A. Volcanic History and Tectonics of the North Langjökull Region, Central Iceland |
topic_facet |
General Earth and Planetary Sciences |
description |
The geology of the area around the northern part of the Langjökull ice sheet in central Iceland is outlined. This area includes the termination of the western neovolcanic zone, two silicic centers, and basaltic interglacial, intraglacial, and postglacial volcanoes. The lava succession becomes older to the northwest of the area where the zone of young volcanoes gives away to a pile of lavas of pre-Bruhnes epoch age which dip at low angles towards the active zone.This active zone undergoes a change in strike from NE–SW to north–south near latitude 64 °55′N and the volcanoes north of this are smaller in volume than those on the southern extension of the zone. The area of Bruhnes epoch activity dies out above latitude 65 °10′N but much of the area between here and the north coast of Iceland was a line of volcanic activity during the preceding Matuyama epoch.The northern part of the western active zone in Iceland became inactive in late Pleistocene times, and the southern part of the zone is an area of continuing crustal growth. The zone of active volcanism does not terminate against a transform fault and crustal growth is accommodated by deformation of the crustal plate. Lines of crustal growth which subsequently die out can be invoked to explain the anticline and syncline structures in the lava pile and the currently-active Snaefellsnes zone in western Iceland. |
format |
Article in Journal/Newspaper |
author |
Piper, J. D. A. |
author_facet |
Piper, J. D. A. |
author_sort |
Piper, J. D. A. |
title |
Volcanic History and Tectonics of the North Langjökull Region, Central Iceland |
title_short |
Volcanic History and Tectonics of the North Langjökull Region, Central Iceland |
title_full |
Volcanic History and Tectonics of the North Langjökull Region, Central Iceland |
title_fullStr |
Volcanic History and Tectonics of the North Langjökull Region, Central Iceland |
title_full_unstemmed |
Volcanic History and Tectonics of the North Langjökull Region, Central Iceland |
title_sort |
volcanic history and tectonics of the north langjökull region, central iceland |
publisher |
Canadian Science Publishing |
publishDate |
1973 |
url |
http://dx.doi.org/10.1139/e73-019 http://www.nrcresearchpress.com/doi/pdf/10.1139/e73-019 |
long_lat |
ENVELOPE(-20.145,-20.145,64.654,64.654) |
geographic |
Langjökull |
geographic_facet |
Langjökull |
genre |
Ice Sheet Iceland Langjökull |
genre_facet |
Ice Sheet Iceland Langjökull |
op_source |
Canadian Journal of Earth Sciences volume 10, issue 2, page 164-179 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e73-019 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
10 |
container_issue |
2 |
container_start_page |
164 |
op_container_end_page |
179 |
_version_ |
1785585207737319424 |