
The Uriconian rocks of Shropshire (Wrekin Terrane) are thought to be potentially related to the Longmyndian Supergroup of the Stretton Hills, Shropshire, United Kingdom. Current geological profiling of the terranes suggests that the Uriconian rocks are of Precambrian age (Neoproterozoic Phases 2 and 3). The Uriconian Rocks outcrop to the southeast...
Found on
http://en.wikipedia.org/wiki/Uriconian

(from the article `Longmyndian`) ...sandstones, shales, and volcanic rocks, is as much as 3,500 metres thick. Rocks underlying the Stretton Series and possibly related to the ...
Found on
http://www.britannica.com/eb/a-z/u/17
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