Silicon isotope homogeneity in the mantle

Journal article

Thirty-five mafic and ultramafic rocks have been analysed for their silicon isotopic composition to very high precision with the aim of providing a robust average value for the silicate earth. This is of importance to studies using the difference between meteorite and terrestrial isotope composition to quantify silicon sequestration during core formation and, also, for understanding crustal processes. The δ30Si values of the samples are more limited than previously reported, ranging between j...

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Authors: Savage, P; Georg, R; Armytage, R; Williams, H; Halliday, A

• Publication status: Published
• Journal: EARTH AND PLANETARY SCIENCE LETTERS
• Volume: 295
• Issue: 1-2
• Pages: 139-146
• Publication date: 2010-06-15
• DOI: 10.1016/j.epsl.2010.03.035
• ISSN: 0012-821X
• Language: English
• Keywords: bulk silicate earth; MORB; silicon isotopes; OIB; ultramafic; terrestrial mantle