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File:Acasta gneiss.jpg

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Captions

Captions

This is not the oldest rock of the Earth. It is a metamixitic (carbonatite+marble) rock derived from impure marbles. It is Mesozoic in age.

Summary

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Description
English: A fragment of the Acasta Gneiss, the oldest known rock outcrop in our planet. In exhibition at the Natural History Museum in Vienna
Date
Source Own work
Author Pedroalexandrade

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current07:38, 28 August 2011Thumbnail for version as of 07:38, 28 August 20111,024 × 768 (206 KB)Pedroalexandrade~commonswiki (talk | contribs)

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