The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland
Few studies have focused on the geomorphic and sedimentary impact of magmatically-generated jôkulhlaups released directly into the proglacial zone. This paper characterizes the proglacial geomorphic and sedimentary impact of the 17-18 July 1999 jôkulhlaup, Glacier Sôlheimajôkull, Iceland. Jôkulhlaup...
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International Association of Hydrological Sciences
2002
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ftustaffordshire:oai:eprints.staffs.ac.uk:1751 2023-05-15T16:21:38+02:00 The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland Russell, A.J. TWEED, Fiona Knudsen, O Roberts, M.J. Harris, T.D. Marren, P.M. 2002 http://eprints.staffs.ac.uk/1751/ http://ks360352.kimsufi.com/redbooks/a271/iahs_271_249.pdf unknown International Association of Hydrological Sciences Russell, A.J., TWEED, Fiona , Knudsen, O, Roberts, M.J., Harris, T.D. and Marren, P.M. (2002) The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland. International Association of Hydrological Sciences Red Book Publication 271 (Proceedings of ‘The Extremes of the Extremes’ Symposium, Reykjavík, July 2000), 271. pp. 249-254. F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2002 ftustaffordshire 2023-03-02T23:14:36Z Few studies have focused on the geomorphic and sedimentary impact of magmatically-generated jôkulhlaups released directly into the proglacial zone. This paper characterizes the proglacial geomorphic and sedimentary impact of the 17-18 July 1999 jôkulhlaup, Glacier Sôlheimajôkull, Iceland. Jôkulhlaup outflow from the glacier margin resulted in temporary water storage within former ice-dammed lake basins, resulting in the deposition of coarsegrained deltas, and more distal sandy bedforms capped by silts. Outflow from the western outlet transported boulders up to 8 m in diameter on the surface of a new outwash fan ranging in thickness from 6 m proximally to 1 m distally. Near-simultaneous deposition of ice blocks, boulders and finer-grained matrix occurred, suggesting that flows were sediment rich during the rising stage of the flood. This unexpected short-lived flood had a distinctive impact on the proglacial zone, providing a record of a precursor to a Mount Katla eruption. Key words: Jôkulsâ â Sôlheimasandi; Myrdalsjôkull; Iceland; geomorphological impact; ice blocks; temporary storage; outwash fan; proglacial; Katla; boulders Article in Journal/Newspaper glacier Iceland Mýrdalsjökull Staffordshire University: STORE - Staffordshire Online Repository Dammed Lake ENVELOPE(-68.258,-68.258,68.496,68.496) Katla ENVELOPE(-19.062,-19.062,63.631,63.631) Mýrdalsjökull ENVELOPE(-19.174,-19.174,63.643,63.643) |
institution |
Open Polar |
collection |
Staffordshire University: STORE - Staffordshire Online Repository |
op_collection_id |
ftustaffordshire |
language |
unknown |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Russell, A.J. TWEED, Fiona Knudsen, O Roberts, M.J. Harris, T.D. Marren, P.M. The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Few studies have focused on the geomorphic and sedimentary impact of magmatically-generated jôkulhlaups released directly into the proglacial zone. This paper characterizes the proglacial geomorphic and sedimentary impact of the 17-18 July 1999 jôkulhlaup, Glacier Sôlheimajôkull, Iceland. Jôkulhlaup outflow from the glacier margin resulted in temporary water storage within former ice-dammed lake basins, resulting in the deposition of coarsegrained deltas, and more distal sandy bedforms capped by silts. Outflow from the western outlet transported boulders up to 8 m in diameter on the surface of a new outwash fan ranging in thickness from 6 m proximally to 1 m distally. Near-simultaneous deposition of ice blocks, boulders and finer-grained matrix occurred, suggesting that flows were sediment rich during the rising stage of the flood. This unexpected short-lived flood had a distinctive impact on the proglacial zone, providing a record of a precursor to a Mount Katla eruption. Key words: Jôkulsâ â Sôlheimasandi; Myrdalsjôkull; Iceland; geomorphological impact; ice blocks; temporary storage; outwash fan; proglacial; Katla; boulders |
format |
Article in Journal/Newspaper |
author |
Russell, A.J. TWEED, Fiona Knudsen, O Roberts, M.J. Harris, T.D. Marren, P.M. |
author_facet |
Russell, A.J. TWEED, Fiona Knudsen, O Roberts, M.J. Harris, T.D. Marren, P.M. |
author_sort |
Russell, A.J. |
title |
The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland |
title_short |
The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland |
title_full |
The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland |
title_fullStr |
The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland |
title_full_unstemmed |
The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland |
title_sort |
geomorphic impact and sedimentary characteristics of the july 1999 jökulhlaup on the jökulsá á sólheimasandi, mýrdalsjökull, southern iceland |
publisher |
International Association of Hydrological Sciences |
publishDate |
2002 |
url |
http://eprints.staffs.ac.uk/1751/ http://ks360352.kimsufi.com/redbooks/a271/iahs_271_249.pdf |
long_lat |
ENVELOPE(-68.258,-68.258,68.496,68.496) ENVELOPE(-19.062,-19.062,63.631,63.631) ENVELOPE(-19.174,-19.174,63.643,63.643) |
geographic |
Dammed Lake Katla Mýrdalsjökull |
geographic_facet |
Dammed Lake Katla Mýrdalsjökull |
genre |
glacier Iceland Mýrdalsjökull |
genre_facet |
glacier Iceland Mýrdalsjökull |
op_relation |
Russell, A.J., TWEED, Fiona , Knudsen, O, Roberts, M.J., Harris, T.D. and Marren, P.M. (2002) The geomorphic impact and sedimentary characteristics of the July 1999 jökulhlaup on the Jökulsá á Sólheimasandi, Mýrdalsjökull, southern Iceland. International Association of Hydrological Sciences Red Book Publication 271 (Proceedings of ‘The Extremes of the Extremes’ Symposium, Reykjavík, July 2000), 271. pp. 249-254. |
_version_ |
1766009636627939328 |