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Science 22 May 1964:
Vol. 144. no. 3621, pp. 1001 - 1003
DOI: 10.1126/science.144.3621.1001
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Articles

Site of Preference Energy and Selective Uptake of Transition-Metal Ions from a Magma

Roger G. Burns 1 and William S. Fyfe 1

1 Department of Geology and Geophysics, University of California, Berkeley

Results of absorption spectra measurements on silicate glasses of various compositions indicate that ions of the first transition-metal series are present in tetrahedral and octahedral sites in silicate melts (glasses). The fractionation patterns observed for transition-metal ions between magmas and silicate minerals can be interpreted according to crystal field theory in terms of octahedral "site preference energies" of transition ions in crystal lattices.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)