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https://hdl.handle.net/2440/75347
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Type: | Journal article |
Title: | The influence of the 73 ka Toba super-eruption on the ecosystems of northern Sumatra as recorded in marine core BAR94-25 |
Author: | van der Kaars, S. Williams, M. Bassinot, F. Guichard, F. Moreno, E. Dewilde, F. Cook, E. |
Citation: | Quaternary International, 2012; 258:45-53 |
Publisher: | Pergamon-Elsevier Science Ltd |
Issue Date: | 2012 |
ISSN: | 1040-6182 |
Statement of Responsibility: | Sander van der Kaars, Martin A.J. Williams, Franck Bassinot, François Guichard, Eva Moreno, Fabien Dewilde, Ellyn J. Cook |
Abstract: | Examination of pollen content and geochemical analysis of marine core BAR94-25 taken from ~100 km north-west of Sumatra in the Andaman Sea reveals a ~100,000 year record of environmental change as well as the influence of the Toba super-eruption at ~73,000 years ago on the ecosystems of northern Sumatra. The record also contains an older volcanic ash dated to ~89,000 years ago, allowing a comparison of the effects of two eruptions on the local environments of the island. The immediate effects of the older eruption on the ecosystem of northern Sumatra were limited, though a gradual and substantial increase in pine forest likely followed the event in the longer term. The Toba super-eruption at ~73,000 years ago, however, had an instantaneous and devastating effect on the pine forests of northern Sumatra. Evidence for impacts of this super-eruption at ~73,000 years ago on regional climatic conditions remains inconclusive. Climatic changes inferred from the pollen record or estimated via pollen transfer functions date to a few thousand years after the eruption, or are clearly linked to long-term climatic trends initiated a few thousand years before. © 2011 Elsevier Ltd and INQUA. |
Rights: | © 2011 Elsevier Ltd and INQUA. All rights reserved. |
DOI: | 10.1016/j.quaint.2011.09.006 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1016/j.quaint.2011.09.006 |
Appears in Collections: | Aurora harvest Geography, Environment and Population publications |
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