Rit (Vísindafélag Íslendinga) - 01.07.1962, Blaðsíða 199

EXPLANATIONS OF THE MAPS.
Map I. Young rocks in Middle Nortliern Iceland.
Horizontal hatching: reverse magnetization. Horizontal and vertical hatch-
ing: normal magnetization. 1 — Stóruvellir, 2 = Stóradalsfjall, 3 =
Skessuskálarfjall, 4 = Melar, 5 = Kerling, 6 = Hólafjall, 7 = Hlíðar-
fjall, 8 = Sauðafell, 9 = Hellisás, 10 = Lambárfell, 11 = Jökuldalur,
12 = Hvammsgil, 13 = Stóradalsháls, 14 = Blöndugljúfur, 15 = Skín-
andi, 16 = Bríkarkvísl, 17 = Bakkabrúnir, 18 = Borgarvirki, 19 =
Holtavörðuheiði, 20 = Lambamannasandfell, 21 = öldumóðukvísl, 22 =
Stórisandur, 23 = Sólheimaháls and Búrfell, 24 = Höskuldsstaðanúpur.
Map II. Southwestern Lowlands.
1 = Beverse Plateau basalts (r2-r3). 2 = Normal plateau group (n2).
Dips of the Plateau hasalts are indicated. 3 = Volcanic breccia. 4 =
Grafningur-Lyngdalsheiði dolerites. 5 = Faultline. Á = Ármannsfell,
G = Gullfoss, H = Hestfjall, Hr = Hrafnabjörg, I = Ingólfsfjall, L
= Laugarvatnsfjall, V = Vörðufell.
Map III. Grafningur—Lyngdalsheiði.
1 = Grafningur-Lyngdalsheiði dolerites, 2 = Volcanic breccia underly-
ing, and in the southwestern part, overlying the dolerites, 3 = Fault-
line. B = Bíldsfell, G = Gálgagil, Gr = Grenjabrekkur, H — Hrólfs-
hólar, 0 = ÍTlfljótsvatnsbotnar, Þ = Thrasaborgir (summit of Lyngdals-
heiði).
Map IV. The Hreppar area.
1 = normal magnetization, 2 = reverse magnetization, 3 = rhyolite.
B = Búrfell, D = Dimon, F = Fossalda, H = Heljarkinn, L = Lang-
holtsfjall, M = Miðfell, S = Stangarfjall, V = Vörðufell.
Map V. The Ok arca.
1 — Ok-lavas, 2 = tuff-breccia of Ok and Hrúðurkarlar, 3 = hreccia
with lava cap, 4 = basalt groups of normal magnetization, 5 = basalt
groups of reverse magnetization, 6 = rhyolite. A = Augastaðahnúkur,
B = Búrfell, Br = Bræðravirki, D = Drangshlíð, F = Fanntófell, G
= Giljahnúkar, II = Hrúðurkarlar, L = Lyklafell, S = Suðurmúli,
ö = Oköxl,