Fróðskaparrit - 01.01.1976, Side 6

14 Seismic Refraction Measurements around the Faeroe Islands
Fig. 2. Free air anomalies aroitnd the Faeroe Islands. The map is based
on the data published by Fleischer et al. (1974) and Bott & Watts (1970).
All NASP shots which gave usable first arrivals on the Faeroe Island
are shown.
field and a number of maps of this field have been published
(Bott 8c Watts 1970, Fleischer 1971, Bott et al. 1971, and
Fleischer et al. 1974). From these gravity data a number of
models of the crust have been constructed, all of which indi-
cate a less dense crust for the Faeroe Islands than for the Ice-
land—Faeroe ridge. In this way the gravitational field points
towards a crust of more continental than oceanic affinity
beneath the Faeroe Islands (see fig. 2).
Two features of the gravitational field can be mentioned:
a gravity maximum south of the Faeroe Islands and a gravity