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Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: The spatial extent of tephra deposition and environmental impacts from the 1912 Novarupta eruption
Authors: Payne, Richard
Symeonakis, Elias
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Keywords: Tephra
Volcanic hazards
Acid deposition
Issue Date: Dec-2012
Publisher: Springer
Citation: Payne R & Symeonakis E (2012) The spatial extent of tephra deposition and environmental impacts from the 1912 Novarupta eruption, Bulletin of Volcanology, 74 (10), pp. 2449-2458.
Abstract: The eruption of Novarupta within the Katmai Volcanic Cluster, south-west Alaska, in June 1912 was the most voluminous eruption of the twentieth century but the distal distribution of tephra deposition is inadequately quantified. We present new syntheses of published tephrostratigraphic studies and a large quantity of previously un-investigated historical records. For the first time, we apply a geostatistical technique, indicator kriging, to integrate and interpolate such data. Our results show evidence for tephra deposition across much of Alaska, Yukon, the northern Pacific, western British Columbia and northwestern Washington. The most distal tephra deposition was observed around 2,500 km downwind from the volcano. Associated with tephra deposition are many accounts of acid deposition and consequent impacts on vegetation and human health. Kriging offers several advantages as a means to integrate and present such data. Future eruptions of a scale similar to the 1912 event have the potential to cause widespread disruption. Historical records of tephra deposition extend far beyond the limit of deposition constrained by tephrostratigraphic records. The distal portion of tephra fallout deposits is rarely adequately mapped by tephrostratigraphy alone; contemporaneous reports of fallout can provide important constraints on the extent of impacts following large explosive eruptions.
Type: Journal Article
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Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Publisher policy allows this work to be made available in this repository. Published in Bulletin of Volcanology, December 2012, Volume 74, Issue 10, pp 2449-2458 by Springer. The original publication is available at
Affiliation: Biological and Environmental Sciences
Manchester Metropolitan University

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