Fróðskaparrit - 01.01.1979, Side 101

Marine Seismic Investigation
109
(Tarling and Gale 1968). Some of the sediments are probably
tuffaceous (Waagstein and Rasmussen 1975).
The lower sediment unit attains a thickness of roughly 2 km
in the vicinity of Sandoy and SuSuroy Banks according to
gravity (Bott and Watts 1971) and seismic evidence (Korsa-
kov 1974).
The sediments of the upper unit are supposed to be of
Quaternary age. The Faeroese ice sheet probably reached the
400 m depth contour to the southeast of the Faeroe Islands
(Waagstein and Rasmussen 1975). The large areas of poor seis-
mic penetration on the eastern sedimentary shelf are therefore
probably covered by glacial drift.
Acknowledgements
The authors wish to thank the Geological Survey of Green-
land for the opportunity to make the survey around the Faeroe
Islands. We also wish to thank all on board »Dana« for good
cooperation. One of the authors, P. H. Nielsen, acknowledges
a grant from »Statens Naturvidenskabelige Forskningsrad«.
REFERENCES
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the Faeroe block and the intervening region. In Woodland, A. W. (ed.):
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logy, Applied Science Publ., England, pp. 105—113.
Bott, M. H. P., Sunderland, ]., Smith, P. ]., Casten, U. and Saxov, S.
1974: Evidence for continental crust beneath the Faeroe Islands.
Nature, Lond., v. 248, 202—204.
Bott, M. H. P. and Watts, A. B. 1971: Deep structure of the continental
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Dobinson, A. 1970: A magnetic survey of the Faeroe Bank. Ph. D. thesis,
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