Jökull - 01.12.1957, Blaðsíða 21

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ÁGRIP :
ÁILRIF ÍSALDARJÖIiLA Á HITA í JÖRÐU
Menn hafa ekki verið á eitt sáttir um aldur
núverandi landslags á Islandi. Helgi Pjeturss
taldi, að efsti hluti blágrýtismyndunarinnar á
Norður- og Vesturlandi vceri kvarter, og nú-
verandi landslag væri því mótað á seinni hlut-
um isaldar. Þessi skoðun hefur átt talsverðu
fylgi að fagna. Nokkrir jarðfræðingar hafa þó
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