XXIX.—On the Characters of the Beds of Clay immediately below the Coal-Seams of South Wales, and on the occurrence of Boulders of Coal in the Pennant Grit of that district.
Open Access
- 1 January 1842
- journal article
- Published by Geological Society of London in Transactions of the Geological Society of London
- Vol. 6 (2) , 491-497
- https://doi.org/10.1144/transgslb.6.2.491
Abstract
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