Relative surface age‐dating of rock glacier systems near Hólar in Hjaltadalur, northern Iceland
Abstract Schmidt‐hammer rebound values and photogrammetric measurements of surface displacement were used to date two active polymorphic (high‐altitude) and two relict monomorphic (low‐altitude) rock glaciers near Hólar in Hjaltadalur, Tröllaskagi peninsula, northern Iceland (65° 40′ N, 19° 00′ W)....
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crwiley:10.1002/jqs.1117 2024-06-23T07:53:03+00:00 Relative surface age‐dating of rock glacier systems near Hólar in Hjaltadalur, northern Iceland Kellerer‐Pirklbauer, Andreas Wangensteen, Bjørn Farbrot, Herman Etzelmüller, Bernd 2007 http://dx.doi.org/10.1002/jqs.1117 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1117 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1117 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 23, issue 2, page 137-151 ISSN 0267-8179 1099-1417 journal-article 2007 crwiley https://doi.org/10.1002/jqs.1117 2024-05-31T08:15:17Z Abstract Schmidt‐hammer rebound values and photogrammetric measurements of surface displacement were used to date two active polymorphic (high‐altitude) and two relict monomorphic (low‐altitude) rock glaciers near Hólar in Hjaltadalur, Tröllaskagi peninsula, northern Iceland (65° 40′ N, 19° 00′ W). Both low‐altitude rock glaciers are of Late Weichselian or Preboreal origin (ca. 10.3–9.2 k yr BP) with minor later reshaping until the early Neoglacial period (‘Vatnsdalur I’; ca. 5.2 k yr BP). Both high‐altitude rock glaciers consist of an upper lobe overriding a lower lobe corresponding to initiation during different cool phases. The initiation of the lower lobes can possibly be attributed to the ‘GH‐8.2 event’ (8.6–8.0 k cal. yr BP). They reached their terminal position at the end of the ‘Vatnsdalur I’ stage. The upper lobes of the high‐altitude rock glaciers were initiated sometimes between the ‘Vatnsdalur I’ but substantially before the ‘Vatnsdalur II’ (ca. 3.0–3.2 k yr BP) stages and underwent modification during each following Holocene glacier expansion episode, culminating the last time in the Little Ice Age. Thus, it is suggested that similar looking rock glaciers occurring elsewhere in the Tröllaskagi peninsula may have a similar complex history. Therefore, they may not be seen as rather simple landforms developed during the Little Ice Age. Copyright © 2007 John Wiley & Sons, Ltd. Article in Journal/Newspaper glacier Iceland Wiley Online Library Hjaltadalur ENVELOPE(-17.665,-17.665,65.522,65.522) Vatnsdalur ENVELOPE(-6.885,-6.885,61.593,61.593) Journal of Quaternary Science 23 2 137 151 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Schmidt‐hammer rebound values and photogrammetric measurements of surface displacement were used to date two active polymorphic (high‐altitude) and two relict monomorphic (low‐altitude) rock glaciers near Hólar in Hjaltadalur, Tröllaskagi peninsula, northern Iceland (65° 40′ N, 19° 00′ W). Both low‐altitude rock glaciers are of Late Weichselian or Preboreal origin (ca. 10.3–9.2 k yr BP) with minor later reshaping until the early Neoglacial period (‘Vatnsdalur I’; ca. 5.2 k yr BP). Both high‐altitude rock glaciers consist of an upper lobe overriding a lower lobe corresponding to initiation during different cool phases. The initiation of the lower lobes can possibly be attributed to the ‘GH‐8.2 event’ (8.6–8.0 k cal. yr BP). They reached their terminal position at the end of the ‘Vatnsdalur I’ stage. The upper lobes of the high‐altitude rock glaciers were initiated sometimes between the ‘Vatnsdalur I’ but substantially before the ‘Vatnsdalur II’ (ca. 3.0–3.2 k yr BP) stages and underwent modification during each following Holocene glacier expansion episode, culminating the last time in the Little Ice Age. Thus, it is suggested that similar looking rock glaciers occurring elsewhere in the Tröllaskagi peninsula may have a similar complex history. Therefore, they may not be seen as rather simple landforms developed during the Little Ice Age. Copyright © 2007 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Kellerer‐Pirklbauer, Andreas Wangensteen, Bjørn Farbrot, Herman Etzelmüller, Bernd |
spellingShingle |
Kellerer‐Pirklbauer, Andreas Wangensteen, Bjørn Farbrot, Herman Etzelmüller, Bernd Relative surface age‐dating of rock glacier systems near Hólar in Hjaltadalur, northern Iceland |
author_facet |
Kellerer‐Pirklbauer, Andreas Wangensteen, Bjørn Farbrot, Herman Etzelmüller, Bernd |
author_sort |
Kellerer‐Pirklbauer, Andreas |
title |
Relative surface age‐dating of rock glacier systems near Hólar in Hjaltadalur, northern Iceland |
title_short |
Relative surface age‐dating of rock glacier systems near Hólar in Hjaltadalur, northern Iceland |
title_full |
Relative surface age‐dating of rock glacier systems near Hólar in Hjaltadalur, northern Iceland |
title_fullStr |
Relative surface age‐dating of rock glacier systems near Hólar in Hjaltadalur, northern Iceland |
title_full_unstemmed |
Relative surface age‐dating of rock glacier systems near Hólar in Hjaltadalur, northern Iceland |
title_sort |
relative surface age‐dating of rock glacier systems near hólar in hjaltadalur, northern iceland |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1002/jqs.1117 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.1117 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.1117 |
long_lat |
ENVELOPE(-17.665,-17.665,65.522,65.522) ENVELOPE(-6.885,-6.885,61.593,61.593) |
geographic |
Hjaltadalur Vatnsdalur |
geographic_facet |
Hjaltadalur Vatnsdalur |
genre |
glacier Iceland |
genre_facet |
glacier Iceland |
op_source |
Journal of Quaternary Science volume 23, issue 2, page 137-151 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.1117 |
container_title |
Journal of Quaternary Science |
container_volume |
23 |
container_issue |
2 |
container_start_page |
137 |
op_container_end_page |
151 |
_version_ |
1802644524806176768 |