Jökull - 01.12.1991, Page 52

Thickness
in metres
200
50
00
50
Gufunes
GB
: < 60°
LEGEND
• Normal remanence polarity *|
o Reverse remanence polarity J a 95
BNormal polarity 1
Field measurements
Reverse polarityj
ZZZ2 Olivine basalt
Porphyric basalt
Compound flow
L11111 Tholeiite
Detrital bed
Tillite
Hyaloclastite
No exposure
Normal fault
Flow number
Kaldakvísl
LIK
d=C
[=3
n :E

3Z3
/V/
%
w

1 ??l

nsT

1 341 j rn.
11 33 .11.

P1 1 |??|

l?'l

1 30 |

1 «1 1 i i 1
Korpa
UE
-s8B;
m
Korpa
UF

nn

em:
im
Fig. 3a. Stratigraphy of sampled section of the Mosfellssveit region including correlations and paleomagnetic
polarity. - Jarðlagasnið sem sýnum var safnað úr í Mosfellssveit.
eastern part. A unit of thin tholeiite flows in the
uppermost part of the series presumably represents
the flank succession of the Stardalur volcano. This
series corresponds to Units 22 and 24 in Esja
(Friðleifsson 1973).
d) The Lágafell hyaloclastite which occurs within
the Korpúlfsstaðir series, is reversely magnetized. It
is about 40-50 m thick in Lágafell and along the
Varmá river but truncates towards west and north. It
is found to be 15-20 m thick in a borehole east of
Borgarholt (Tulinius et al. 1986). It is probably the
same as Unit 23 in Esja.
e) The Ulfarsfell basalt series is normally magne-
tized and about 120 m thick. It is composed of
50 JÖKULL,No. 41, 1991