Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska
Tephrochronology, the reconstruction of past volcanic ash deposition, provides a valuable method for dating sediments and determining long-term volcanic history. Tephra layers are highly numerous in Alaska, but knowledge of their occurrence and distribution is incomplete. This study expands the regi...
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Arctic Institute of North America
2008
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ftunivstirling:oai:dspace.stir.ac.uk:1893/17222 2023-05-15T14:25:18+02:00 Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska Payne, Richard Blackford, Jeffrey J Biological and Environmental Sciences University of Manchester 2008-09 application/pdf http://hdl.handle.net/1893/17222 http://www.jstor.org/stable/40513024 http://dspace.stir.ac.uk/bitstream/1893/17222/1/PayneBlackfordproofKenaiTephra.pdf en eng Arctic Institute of North America Payne R & Blackford JJ (2008) Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska. Arctic, 61 (3), pp. 243-254. http://www.jstor.org/stable/40513024 http://hdl.handle.net/1893/17222 http://www.jstor.org/stable/40513024 WOS:000259521200002 2-s2.0-52749085855 673070 http://dspace.stir.ac.uk/bitstream/1893/17222/1/PayneBlackfordproofKenaiTephra.pdf Publisher policy allows this work to be made available in this repository. Published in Arctic, Vol. 61, No. 3 (Sep., 2008), pp. 243-254 by Arctic Institute of North America. The original publication is available at: http://www.jstor.org/stable/40513024 tephra cryptotephra peatlands Alaska volcanoes electron probe microanalysis Journal Article VoR - Version of Record 2008 ftunivstirling 2022-06-13T18:43:27Z Tephrochronology, the reconstruction of past volcanic ash deposition, provides a valuable method for dating sediments and determining long-term volcanic history. Tephra layers are highly numerous in Alaska, but knowledge of their occurrence and distribution is incomplete. This study expands the regional tephrochronology for the Kenai Peninsula of southcentral Alaska by investigating the tephrostratigraphy of two peatland sites. We located seven visible tephras and seven microtephras and investigated the particle size and geochemistry of the visible tephras. Radiocarbon dates were used to estimate the timescale of each core. Geochemical comparison showed that the visible tephras originated from late Holocene eruptions of Augustine, Crater Peak-Mt. Spurr, and Hayes volcanoes. Some of the tephras had been documented previously, and these new findings expand their known range. Others represent eruptions not previously reported, including a Crater Peak-Mt. Spurr eruption around 430 cal. BP. The results provide new tephra data for the region, illustrate the spatial heterogeneity of tephra deposition, and show the potential of microtephras for expanding the regional tephra record. Article in Journal/Newspaper Arctic Alaska University of Stirling: Stirling Digital Research Repository Hayes ENVELOPE(-64.167,-64.167,-66.833,-66.833) |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
topic |
tephra cryptotephra peatlands Alaska volcanoes electron probe microanalysis |
spellingShingle |
tephra cryptotephra peatlands Alaska volcanoes electron probe microanalysis Payne, Richard Blackford, Jeffrey J Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska |
topic_facet |
tephra cryptotephra peatlands Alaska volcanoes electron probe microanalysis |
description |
Tephrochronology, the reconstruction of past volcanic ash deposition, provides a valuable method for dating sediments and determining long-term volcanic history. Tephra layers are highly numerous in Alaska, but knowledge of their occurrence and distribution is incomplete. This study expands the regional tephrochronology for the Kenai Peninsula of southcentral Alaska by investigating the tephrostratigraphy of two peatland sites. We located seven visible tephras and seven microtephras and investigated the particle size and geochemistry of the visible tephras. Radiocarbon dates were used to estimate the timescale of each core. Geochemical comparison showed that the visible tephras originated from late Holocene eruptions of Augustine, Crater Peak-Mt. Spurr, and Hayes volcanoes. Some of the tephras had been documented previously, and these new findings expand their known range. Others represent eruptions not previously reported, including a Crater Peak-Mt. Spurr eruption around 430 cal. BP. The results provide new tephra data for the region, illustrate the spatial heterogeneity of tephra deposition, and show the potential of microtephras for expanding the regional tephra record. |
author2 |
Biological and Environmental Sciences University of Manchester |
format |
Article in Journal/Newspaper |
author |
Payne, Richard Blackford, Jeffrey J |
author_facet |
Payne, Richard Blackford, Jeffrey J |
author_sort |
Payne, Richard |
title |
Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska |
title_short |
Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska |
title_full |
Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska |
title_fullStr |
Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska |
title_full_unstemmed |
Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska |
title_sort |
extending the late holocene tephrochronology of the central kenai peninsula, alaska |
publisher |
Arctic Institute of North America |
publishDate |
2008 |
url |
http://hdl.handle.net/1893/17222 http://www.jstor.org/stable/40513024 http://dspace.stir.ac.uk/bitstream/1893/17222/1/PayneBlackfordproofKenaiTephra.pdf |
long_lat |
ENVELOPE(-64.167,-64.167,-66.833,-66.833) |
geographic |
Hayes |
geographic_facet |
Hayes |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_relation |
Payne R & Blackford JJ (2008) Extending the late holocene tephrochronology of the central Kenai Peninsula, Alaska. Arctic, 61 (3), pp. 243-254. http://www.jstor.org/stable/40513024 http://hdl.handle.net/1893/17222 http://www.jstor.org/stable/40513024 WOS:000259521200002 2-s2.0-52749085855 673070 http://dspace.stir.ac.uk/bitstream/1893/17222/1/PayneBlackfordproofKenaiTephra.pdf |
op_rights |
Publisher policy allows this work to be made available in this repository. Published in Arctic, Vol. 61, No. 3 (Sep., 2008), pp. 243-254 by Arctic Institute of North America. The original publication is available at: http://www.jstor.org/stable/40513024 |
_version_ |
1766297729820000256 |