Publisher's Synopsis
Excerpt from Discovery Reports, 1933, Vol. 7: Issued by the Discovery Committee Colonial Office, London on Behalf of the Government of the Dependencies of the Falkland Islands
The shale all consisted of rounded pebbles, the largest of which measured 7 x 6 x 3 cm. The larger pebbles were partly stained by a brown surface coloration and were pierced by borings, up to 6 mm. In diameter, of present-day marine organisms; several recent Specimens of Polyzoa and F oraminifera were adherent to their surface. The shale was Of two kinds, both being rather hard, but showing no Sign of crushing or thermal metamorphism. Most was of a green-grey colour, highly glauconitic (best seen at the eroded surface where the glauconite grains were left prominently exposed), and very finely sandy. Traces of the original bedding were Visible in some Of the pebbles. The less common type consisted of slightly sandy micaceous shale, light grey when dried, and of exceedingly fine texture, without glauconite. There was a single pebble, 2° 5 cm. Long, of rather soft grey argillaceous limestone.
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