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GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,
VOL. 4, NO. 11,
1097,
doi:10.1029/2003GC000608,
2003
Volcanic ash retrieved from the GRIP ice core is not from Thera
Douglas J. Keenan
The Limehouse Cut, London E14 6N, UK
Abstract
Tephra found in an ice core from Greenland (GRIP) has been claimed to be from the Minoan eruption of Thera (Santorini), Greece.
If true, this would date the eruption, thereby resolving a decades-long debate in chronology. Herein, it is shown that the
methods used to match the Greenlandic tephra with Thera are flawed and that the geochemical data imply the tephra is not from
Thera.
Received 23
July
2003;
accepted 29
September
2003;
published 15
November
2003.
Index Terms: 8404 Volcanology: Ash deposits; 1094 Geochemistry: Instruments and techniques; 3299 Mathematical Geophysics: General or miscellaneous.
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Citation: Keenan, D. J.
(2003),
Volcanic ash retrieved from the GRIP ice core is not from Thera,
Geochem. Geophys. Geosyst.,
4(11),
1097,
doi:10.1029/2003GC000608.
Copyright 2003 by the American Geophysical Union.
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