Technical Comments

Comment on "A Vestige of Earth's Oldest Ophiolite"

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Science  02 Nov 2007:
Vol. 318, Issue 5851, pp. 746
DOI: 10.1126/science.1144148

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Abstract

Furnes et al. (Reports, 23 March 2007, p. 1704) reported the identification of an ophiolite sequence within the ∼3.8-billion-year-old Isua supracrustal belt. However, they did not acknowledge that the belt contains supracrustal rocks and mafic dikes of different ages, nor did they demonstrate that the proposed components of the ophiolite are coeval.

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