Abstract
The rare Phanerozoic rock type boninite petrographically resembles Archaean basaltic komatiites and the range of boninite compositions overlaps that of basaltic komatiites. Quench amphibole and hydrous glass in the groundmass of boninites confirm earlier ideas that they may be the products of partial melting of peridotite in hydrous conditions, whereas basaltic komatiites have been assumed to result from fractionation of dry melts. Where field relationships are known, boninites are found either in ophiolites or a fore-arc tectonic environment.
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Cameron, W., Nisbet, E. & Dietrich, V. Boninites, komatiites and ophiolitic basalts. Nature 280, 550–553 (1979). https://doi.org/10.1038/280550a0
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DOI: https://doi.org/10.1038/280550a0
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