Jökull - 01.12.1988, Síða 61

correspond to the Furuvík glaciations on Tjömes (cf.
Eiríksson, 1981).
ACKNOWLEDGEMENTS
The samples were made available by Karl
Gunnarsson and Margrét Kjartansdóttir of Orku-
stofnun (National Energy Authority), Reykjavík.
The potassium analyses were made by geology stu-
dents Már Vilhjálmsson and Elinóra I.
Sigurðardóttir, University of Iceland. Níels Oskars-
son of the Nordic Volcanological Institute super-
vised the analytical work in Iceland and modified
the analytical procedure. Dr. Aslaug Geirsdóttir
drafted the diagrams skilfully. Dr. J.A. Miller at the
Bullard Laboratories, Cambridge was of invaluable
help. The radiometric work in Cambridge was made
possible by a grant from the Icelandic Science Fund.
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JÖKULL, No. 38, 1988 59