Jökull - 31.12.2001, Side 4

Jukka Kayhkö et al.
Reykjahlíð
Grímsstaöir
Mývatn
• :
Búrfell
AKUREYRI
Fremi-
Námur
Ódáðahraun
Möörudaíur/
Herðu-
braiðarljöll
Suðurár-
botnar
. Herðubreið
Hofsjökull
Langjökull
Mýrdals■
k jökull
Trölladyngja
• Volcanic systems
1 Krafla
2 Askja
3 Báröarbunga
4 KverkQöll
5 Grímsvötn
Neovolcanic Zones
I lce cap
50 km
Figure 1. Index map and a Landsat TM colour composite (RGB 321 = normal colour) scene of the Ódáðahraun
region. The image was acquired on July 14th, 1992. Green colours indicate vegetated surfaces, which dominate
the northwestern corner, and Lake Mývatn. Various tints of grey denote barren postglacial lavas (in the middle)
and till covered Tertiary surfaces (in the east and west). Brown colours in the south represent barren sediment
surfaces. Fresh lava flows such as Krafla 1975-1984 and Askja 1961 are black, whereas the Askja tephra fan
from 1875 is bright and not easily discemible from the snow cover on the westem rim of Askja caldera. The
volcanic systems adjacent to the study region are also shown. Copyright: Landmælingar íslands. - Landsat TM
gervitunglamynd afOdáðahmuni. Myndin var tekin 14.júlí, 1992. Litir eru nokkuð raunverulegir. Gróðurlendi
er í grœnum litum. Hraunfrá síðjökultíma eru mismunandi gráleit en hraunfrá Kröflueldum og Oskjugosinu
1961 dökkgrábrún. Laus yfirborðsset afýmsu tagi eru brúnleit. Birt með leyfi Landmœlinga Islands.
2 JÖKULLNo. 51