with cross-beds and pebbles. Corridor H, West Virginia.
Flip side of the sample here: www.gigapan.com/gigapans/187778
A volcanic contact; potentially a sort of unconformity!
Sample courtesy of Ken Rasmussen and his colleague, the Baltimore-based archaeologist Henry Ward.
with stylolites and primary sedimentary features
After the twin tunnels of the northern Tröllaskagi Peninsula, lovely little Siglufjörður comes into view.
A lovely place for a swim
An amazing setting for a swim.
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