Abstract
RIFTING and volcanic activity in Iceland is believed to be related to two active rift zones. I suggest, however, that several additional zones, some having a limited life, also exist. This concurs with a view1 that the active zones are not immutable. It is now becoming increasingly apparent, moreover, that the southern half of Iceland has a spreading rate several times greater than that of both the northern half and some submerged parts of the Mid-Atlantic Ridge.
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WALKER, G. Excess spreading axes and spreading rate in Iceland. Nature 255, 468–471 (1975). https://doi.org/10.1038/255468a0
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DOI: https://doi.org/10.1038/255468a0
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