Jökull - 01.12.1979, Qupperneq 30

results. G H max is perpendicular to the axial
rift zónes. Abstract.
Jakobsson, S. P., 1972: Chemistry and distribution
pattern of Recent basaltic rocks in Iceland.
Lithos 5: 365—386.
Jones, J. G., 1969: Intraglacial volcanoes of the
Laugarvatn region SW-Iceland. Q. T. Geol. Soc.
Lond. 124: 197-211.
Kristjansson, L., I. B. Fridleifsson and N. D. Wat-
kins, 1979: Stratigraphy and paleomagnetism
of the Esja, Eyrarfjall and Akrafjall mountains,
SW-Iceland. J. Geophys. (in press).
LaBrecque, J. L., D. V. Kent and S. C. Cande,
1977: Revised magnetic polarity time scale for
late Cretoceous and Cenozoic time. Geology 5,
6: 330—335.
McDougall, I. and H. Wensink, 1966: Paleomag-
netism and geochronology of the Pliocene-
Pleistocene lavas in Iceland. Earth Planet. Sci.
Lett. 1: 232-236.
McDougall, I., K. Saemundsson, H. Jóharmesson,
N. D. Watkins and L. Kristjansson, 1977: Ex-
tension of the geomagnetic polarity time scale
to 6.5 m.y.: K-Ar dating, geological and
paleomagnetic study of a 3.500 m lava suc-
cession in western Iceland. Geol. Soc. Am. Bull.
88: 1 — 15.
Moorbath, S., H. Sigurdsson and R. Goodwin,
1968: K-Ar ages of the oldest exposed rocks in
Iceland. Earth Planet. Sci. Lett. 4: 197 — 205.
Nakamura, K., 1970: En echelon features of Ice-
landic ground fissures. Acta Nat. Islandica 2, 8:
15 pp.
Norton, P. E. P., 1977: Neogene mollusca of the
Tjörnes sequence, Iceland: Paleoecology, zo-
nation, correlation. Malacologia 16, 1: 211 —
213.
Pálmason, G., 1971: Crustal structure of Iceland
from explosion seismology. Soc. Sci. Isl. Rit. 40:
183 pp.
Pálmason, G., 1974: The Insular margins of Ice-
land. In Burk, C. A. and C. L. Drake (Eds.):
Geology of continental margins: 375 — 379.
Springer-Verlag.
Ross,J. G. and A. E. Mussett, 1976:40Ar/39Ar dates
for spreading rates in eastern Iceland. Nature,
259: 36—38.
Saemundsson, K., 1974: Evolution of the axial
rifting zone in northern Iceland and the Tjörnes
Fracture Zone. Geol. Soc. Am. Bull. 85: 495 —
504.
Saemundsson, K., 1978: Fissure swarms and cen-
tral volcanoes of the neovolcanic zones of Ice-
land. Geol. J., Spec. Issue 10: 415—432.
Saemundsson, K., L. Kristjansson and I.
McDougall, 1980: K/Ar dating, geological and
paleomagnetic study of a 5 km lava succession
in northern Iceland. J. Geophys. Res. (in press).
Saemundsson, K., and H. Noll, 1974: K/Ar
ages of rocks from Húsafell, western Iceland and
the development of the Húsafell central vol-
cano. Jökull 24: 40—59.
Sigurdsson, H., 1970: Structural origin and plate
tectonics of the Snaefellsnes volcanic zone wes-
tern Iceland. Earth Planet. Sci. Lett. 10: 129—
135.
Sykes, L. R., 1967: Mechanism of earthquakes and
nature of faulting on the mid-ocean ridges. J.
Geophys. Res. 72: 2131—2153.
Talwani, M. and O. Eldholm, 1977: Evolution of
the Norwegian-Greenland Sea. Bull. Geol. Soc.
Am. 88: 969—999.
Thorarinsson, S., K. Saemundsson, and R. S. Wil-
liams, 1973: ERTS-1 Image of Vatnajökull:
Analysis of glaciological, structural and vol-
canic features. Jökull 23: 7—17.
Tryggvason, T., 1955: On the stratigraphy of the
Sog Valiey in SW-Iceland. Acta Naturalia Is-
landica 1, 10: 35 pp.
Walker, G. P. L., 1959: Geology of the Reydar-
fjördur area eastern Iceland. Quarterly J. Geol.
Soc. Lond. 114: 367—393.
Walker, G. P. L., 1960: Zeolite zones and dike dis-
tribution in relation to the structure of the
basalts of eastern Iceland. J. Geol. 68: 515—528.
Walker, G. P. L., 1963: The Breiddalur central
volcano eastern Iceland. Q. J. Geol. Soc. Lond.
119: 29—63.
Walker, G. P. L., 1965: Some aspects of Quaternary
volcanism. Trans. Leiscester Lit. Phil. Soc. 59:
25 —40.
Walker, G. P. L., 1971: Compound and simple lava
flows. Bull. Volcanol. 35: 579—590.
Watkins, N. D. and G. P. L. Walker, 1977: Mag-
netostratigraphy of eastern Iceland. Am. J. Sci.
277:513-584.
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