Comment on "A vestige of Earth's oldest ophiolite".

نویسنده

  • Warren B Hamilton
چکیده

The claim by Furnes et al. (Reports, 23 March 2007, p. 1704) that Greenland metavolcanic rocks require Paleoarchean sea-floor spreading is incompatible with their own data. The purported sheeted dikes have the composition of pyroxenitic komatiite and could not have fed the adjacent ferroandesitic pillow lavas. Neither type has ophiolitic analogs, and both are likely ensialic.

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

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عنوان ژورنال:
  • Science

دوره 318 5851  شماره 

صفحات  -

تاریخ انتشار 2007