Oxygen isotope evidence for recycled crust in the source of EM-type ocean island basalts
Abstract
The oxygen isotope compositions of fresh volcanic glasses from submarine volcanoes of 'enriched mantle' (EM-1 and EM-11) type appear to require the presence of subducted crustal components in the source of these lavas. These data confirm earlier inferences from trace elements and radiogenic isotopes, and also provide a rare opportunity to estimate the proportion of subducted material that reaches the source region of ocean island basalts.
- Publication:
-
Nature
- Pub Date:
- April 1993
- DOI:
- Bibcode:
- 1993Natur.362..809W
- Keywords:
-
- Basalt;
- Earth Crust;
- Islands;
- Lava;
- Oceans;
- Oxygen Isotopes;
- Magma;
- Trace Elements;
- Geophysics