Is there an Icelandic mantle plume?
Abstract
SCHILLING1 has interpreted the chemistry of basalt lavas from the Reykjanes Ridge and Iceland, identifying two distinct upper mantle sources for these lavas, one of which rises in a primordial hot mantle plume beneath Iceland. I questioned2 this interpretation on the grounds that insufficient attention had been given to the possibility that the magmas were derived from a homogeneous source; the differences could arise from by fractional crystallisation during the ascent of the lava.
- Publication:
-
Nature
- Pub Date:
- February 1975
- DOI:
- 10.1038/253708a0
- Bibcode:
- 1975Natur.253..708O