Rit (Vísindafélag Íslendinga) - 01.06.1967, Qupperneq 109
105
Heirtzler, J. R., X. Le Pichon and J. G. Baron, 1966: Magnetic anomalies
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DISCUSSION
K. Saemundsson: It seems to me, that the strong anomaly
over the young volcanic belt favors continental drift. Accept-
ing 1 cm per year (2 cm per year has been postulated for the
Reykjanes Ridge) as a possible value for the Reykjanes—Lang-
jökull belt would mean, that an extension of about 7 km was
compensated by equal amount of normal rock introduced dur-
ing the present normal polarity epoch. Presumably this new
body of rock occurs as dykes at depth but also a great thick-
ness of normal eruptive rocks must have accumulated near
the surface.
Thorleifur Einarsson (written comment):
G. Gudmundsson discussed briefly the aeromagnetic ano-
malies over the Reykjanes Ridge 350 km SW of Iceland mea-
sured by Heirtzler (Heirtzler et al. 1966) and their inter-