Jökull - 01.12.1999, Page 26

Figure 2. Aerial photograph of the intensively fractured area around lake Langavatn, showing the orthogonal
network of WNW and NNE fractures. Scale 1:36000. Published with permission of the Iceland Geodetic Insti-
tute. ©: Landmælingar Islands. — Loftmynd af svœðinu við Langavatn sem sýnir hversu þéttriðin VNV-ASA
og NNA-SSV brotin eru í bergstaflanum (sjá einnig höggunarkort á mynd 5a). Myndin, sem er í mælikvarða
1:36000, er birt með leyfi Landmælinga Islands.
trending NE towards Hrappsey and E from there to developed from continuous tilting of lava towards the
Reykjadalur central volcano (Figure la), before turn- rift axis. Such tilting, described in Iceland (Walker,
ing northwards into the Húnaflói bay. The syncline 1963; Sæmundsson, 1967)andin Afar (Grellet, 1983)
24 JÖKULL, No. 47