Jökull - 01.06.2000, Blaðsíða 36

Surface and bedrock topography of Mýrdalsjökull
0 5 10 km
Figure 5. Sub-ice topography of Mýrdalsjökull, 25 m contours. Location of cauldrons marked by red circles and
the caldera rim is shown by a red hachured line. – Kort af botni Mýrdalsjökuls með 25 m hæðarlínum. Hringir
sýna legu sigkatla á jarðhitasvæðum og slitrótt lína afmarkar öskjubarmana.
25 km

lies below 800 m. However, a row of peaks,
100-150 m high and trending NNW, is seen 2 km
within the eastern rim of the caldera. In the rugged
and elevated southwestern floor, subglacial ridges and
isolated mounts rise above 1100 m surrounded by
depressions that reach down to 750 m. A 3 km long
NNW trending ridge strikes from the eastern part of
Háabunga and a 5 km long ridge east from Goða-
bunga. About 3 km north of Háabunga an isolated
ridge strikes E-W parallel to the caldera rim. The dif-
ferent morphology of the caldera floor, on each side
of the major axis, reflects different production rates
of volcanic material after the volcano became covered
with ice.
JÖKULL No. 49 35