STUDIES OF THE COASTAL MORPHOLOGY ON SURTSEY ISLAND
Investigations on the shore and offshore morphology of the volcanic island of Surtsey off the southeastern coast of Iceland are reported. The volcanic activity that started as a submarine explosion in November 1963 ended in June 1967. A photogrammetric map of the island is in preparation. During the...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
1970
|
Subjects: | |
Online Access: | http://www.dtic.mil/docs/citations/AD0707484 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0707484 |
id |
ftdtic:AD0707484 |
---|---|
record_format |
openpolar |
spelling |
ftdtic:AD0707484 2023-05-15T16:48:13+02:00 STUDIES OF THE COASTAL MORPHOLOGY ON SURTSEY ISLAND Norrman,John O. AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS 1970-04 text/html http://www.dtic.mil/docs/citations/AD0707484 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0707484 en eng http://www.dtic.mil/docs/citations/AD0707484 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Geology Geochemistry and Mineralogy (*ICELAND COASTAL REGIONS) (*COASTAL REGIONS *VOLCANOES) TERRAIN EROSION AVALANCHES OCEAN WAVES PHOTOGEOLOGY AERIAL PHOTOGRAPHS MARINE GEOLOGY MUDFLOWS *COASTAL TOPOGRAPHIC FEATURES COASTAL GEOMORPHOLOGY GEOMORPHOLOGY TRANSLATIONS Text 1970 ftdtic 2016-02-18T23:24:06Z Investigations on the shore and offshore morphology of the volcanic island of Surtsey off the southeastern coast of Iceland are reported. The volcanic activity that started as a submarine explosion in November 1963 ended in June 1967. A photogrammetric map of the island is in preparation. During the winter 1967/68 there was a rapid retreat of the lava cliff on the southern coast. The cliff is 10-15 m in height. The maximum retreat was 140 m and the average retreat about 75 m. The amount of lava removed by erosion is estimated at 2 million cubic meters. The shoals of former cinder-cone islands (Surtla, Syrtlingur, and Jolnir), contemporaneously built up, were found to have been abraded during the last winter. The plateaus of Jolnir and Surtla had been lowered several meters. The submarine slopes of Surtsey were investigated by SCUBA diving down to a maximum of 40 m in depth. The sandy material of the slopes of the northern point is deposited at the frictional angle of repose. There is active avalanching on these slopes. On the slopes of the southern coast angular blocks dominate. (Author) Trans. of Upsala Univ. Geografiska Institutionen. Meddelanden Ser. A (Sweden) n239 p60-69 1969. Text Iceland Surtsey Defense Technical Information Center: DTIC Technical Reports database Surtsey ENVELOPE(-20.608,-20.608,63.301,63.301) Syrtlingur ENVELOPE(-20.588,-20.588,63.308,63.308) The Shoals ENVELOPE(-56.498,-56.498,49.817,49.817) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Geology Geochemistry and Mineralogy (*ICELAND COASTAL REGIONS) (*COASTAL REGIONS *VOLCANOES) TERRAIN EROSION AVALANCHES OCEAN WAVES PHOTOGEOLOGY AERIAL PHOTOGRAPHS MARINE GEOLOGY MUDFLOWS *COASTAL TOPOGRAPHIC FEATURES COASTAL GEOMORPHOLOGY GEOMORPHOLOGY TRANSLATIONS |
spellingShingle |
Geology Geochemistry and Mineralogy (*ICELAND COASTAL REGIONS) (*COASTAL REGIONS *VOLCANOES) TERRAIN EROSION AVALANCHES OCEAN WAVES PHOTOGEOLOGY AERIAL PHOTOGRAPHS MARINE GEOLOGY MUDFLOWS *COASTAL TOPOGRAPHIC FEATURES COASTAL GEOMORPHOLOGY GEOMORPHOLOGY TRANSLATIONS Norrman,John O. STUDIES OF THE COASTAL MORPHOLOGY ON SURTSEY ISLAND |
topic_facet |
Geology Geochemistry and Mineralogy (*ICELAND COASTAL REGIONS) (*COASTAL REGIONS *VOLCANOES) TERRAIN EROSION AVALANCHES OCEAN WAVES PHOTOGEOLOGY AERIAL PHOTOGRAPHS MARINE GEOLOGY MUDFLOWS *COASTAL TOPOGRAPHIC FEATURES COASTAL GEOMORPHOLOGY GEOMORPHOLOGY TRANSLATIONS |
description |
Investigations on the shore and offshore morphology of the volcanic island of Surtsey off the southeastern coast of Iceland are reported. The volcanic activity that started as a submarine explosion in November 1963 ended in June 1967. A photogrammetric map of the island is in preparation. During the winter 1967/68 there was a rapid retreat of the lava cliff on the southern coast. The cliff is 10-15 m in height. The maximum retreat was 140 m and the average retreat about 75 m. The amount of lava removed by erosion is estimated at 2 million cubic meters. The shoals of former cinder-cone islands (Surtla, Syrtlingur, and Jolnir), contemporaneously built up, were found to have been abraded during the last winter. The plateaus of Jolnir and Surtla had been lowered several meters. The submarine slopes of Surtsey were investigated by SCUBA diving down to a maximum of 40 m in depth. The sandy material of the slopes of the northern point is deposited at the frictional angle of repose. There is active avalanching on these slopes. On the slopes of the southern coast angular blocks dominate. (Author) Trans. of Upsala Univ. Geografiska Institutionen. Meddelanden Ser. A (Sweden) n239 p60-69 1969. |
author2 |
AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS |
format |
Text |
author |
Norrman,John O. |
author_facet |
Norrman,John O. |
author_sort |
Norrman,John O. |
title |
STUDIES OF THE COASTAL MORPHOLOGY ON SURTSEY ISLAND |
title_short |
STUDIES OF THE COASTAL MORPHOLOGY ON SURTSEY ISLAND |
title_full |
STUDIES OF THE COASTAL MORPHOLOGY ON SURTSEY ISLAND |
title_fullStr |
STUDIES OF THE COASTAL MORPHOLOGY ON SURTSEY ISLAND |
title_full_unstemmed |
STUDIES OF THE COASTAL MORPHOLOGY ON SURTSEY ISLAND |
title_sort |
studies of the coastal morphology on surtsey island |
publishDate |
1970 |
url |
http://www.dtic.mil/docs/citations/AD0707484 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0707484 |
long_lat |
ENVELOPE(-20.608,-20.608,63.301,63.301) ENVELOPE(-20.588,-20.588,63.308,63.308) ENVELOPE(-56.498,-56.498,49.817,49.817) |
geographic |
Surtsey Syrtlingur The Shoals |
geographic_facet |
Surtsey Syrtlingur The Shoals |
genre |
Iceland Surtsey |
genre_facet |
Iceland Surtsey |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0707484 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766038323251380224 |