Subsidence events in the Krafla area: Preliminary report based on tilt and distance measurements
In the inflation-deflation sequence of the Krafla magma chamber since its beginning in 1975, 10 deflation or subsidence events have been identified until July 1978. The tilt and distance measurements relating to these subsidence events are discussed in some detail. All of these subsidence events are...
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ftosti:oai:osti.gov:890965 2023-07-30T04:04:24+02:00 Subsidence events in the Krafla area: Preliminary report based on tilt and distance measurements Tryggvason, Eysteinn 2007-04-30 application/pdf http://www.osti.gov/servlets/purl/890965 https://www.osti.gov/biblio/890965 https://doi.org/10.2172/890965 unknown http://www.osti.gov/servlets/purl/890965 https://www.osti.gov/biblio/890965 https://doi.org/10.2172/890965 doi:10.2172/890965 58 GEOSCIENCES ICELAND VOLCANOES CALDERAS LAVA MAGMA GROUND SUBSIDENCE 2007 ftosti https://doi.org/10.2172/890965 2023-07-11T08:43:40Z In the inflation-deflation sequence of the Krafla magma chamber since its beginning in 1975, 10 deflation or subsidence events have been identified until July 1978. The tilt and distance measurements relating to these subsidence events are discussed in some detail. All of these subsidence events are associated with horizontal magma flow along the N-S trending fissure zone, which goes through the central part of the suggested Krafla caldera to form a dike 3 to 5 meter wide, 80 km long and 1.0 to 2.5 km high from the bottom to the top. The total volume of magma, which flowed out of the Krafla magma chamber during these 10 events, is estimated as 392 x 10{sup 6} m{sup 3}, whereof 318 x 10{sup 6} m{sup 3} are estimated to have flowed northwards, 72 x 10{sup 6} m{sup 3} southwards and about 2 x 10{sup 6} m{sup 3} came to the surface as basaltic lava. Other/Unknown Material Iceland SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Krafla ENVELOPE(-16.747,-16.747,65.713,65.713) |
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Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
unknown |
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58 GEOSCIENCES ICELAND VOLCANOES CALDERAS LAVA MAGMA GROUND SUBSIDENCE |
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58 GEOSCIENCES ICELAND VOLCANOES CALDERAS LAVA MAGMA GROUND SUBSIDENCE Tryggvason, Eysteinn Subsidence events in the Krafla area: Preliminary report based on tilt and distance measurements |
topic_facet |
58 GEOSCIENCES ICELAND VOLCANOES CALDERAS LAVA MAGMA GROUND SUBSIDENCE |
description |
In the inflation-deflation sequence of the Krafla magma chamber since its beginning in 1975, 10 deflation or subsidence events have been identified until July 1978. The tilt and distance measurements relating to these subsidence events are discussed in some detail. All of these subsidence events are associated with horizontal magma flow along the N-S trending fissure zone, which goes through the central part of the suggested Krafla caldera to form a dike 3 to 5 meter wide, 80 km long and 1.0 to 2.5 km high from the bottom to the top. The total volume of magma, which flowed out of the Krafla magma chamber during these 10 events, is estimated as 392 x 10{sup 6} m{sup 3}, whereof 318 x 10{sup 6} m{sup 3} are estimated to have flowed northwards, 72 x 10{sup 6} m{sup 3} southwards and about 2 x 10{sup 6} m{sup 3} came to the surface as basaltic lava. |
author |
Tryggvason, Eysteinn |
author_facet |
Tryggvason, Eysteinn |
author_sort |
Tryggvason, Eysteinn |
title |
Subsidence events in the Krafla area: Preliminary report based on tilt and distance measurements |
title_short |
Subsidence events in the Krafla area: Preliminary report based on tilt and distance measurements |
title_full |
Subsidence events in the Krafla area: Preliminary report based on tilt and distance measurements |
title_fullStr |
Subsidence events in the Krafla area: Preliminary report based on tilt and distance measurements |
title_full_unstemmed |
Subsidence events in the Krafla area: Preliminary report based on tilt and distance measurements |
title_sort |
subsidence events in the krafla area: preliminary report based on tilt and distance measurements |
publishDate |
2007 |
url |
http://www.osti.gov/servlets/purl/890965 https://www.osti.gov/biblio/890965 https://doi.org/10.2172/890965 |
long_lat |
ENVELOPE(-16.747,-16.747,65.713,65.713) |
geographic |
Krafla |
geographic_facet |
Krafla |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
http://www.osti.gov/servlets/purl/890965 https://www.osti.gov/biblio/890965 https://doi.org/10.2172/890965 doi:10.2172/890965 |
op_doi |
https://doi.org/10.2172/890965 |
_version_ |
1772815832224628736 |