Nature of the experimental Mohole basalt-redetermination of lanthanides

Abstract

Rare earths (lanthanides) in the experimental Mohole basalt were determined accurately by an isotope dilution method in order to check a dispute between L. A. Haskin and F. A. Frey (1966) and J. F. Lovering and J. W. Morgan (1966) on the nature of this rock. The result shows that it is possible to conclude that a separation as a solid phase system from an equilibrated liquid is involved in the development of this basalt. It is also possible that the uranium and thorium contents determined by Morgan and Lovering are in line with lanthanide results.