Chalk Group Lithostratigraphy: Northern England - Maidland Tilestone: Revision history

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11 October 2013

  • curprev 12:2012:20, 11 October 2013‎ Dbk talk contribs‎ 662 bytes +662‎ Created page with "Recognised by Mitchell (1994), it comprises a c. 1.8 m thick unit of thin-bedded (c. 0.1 m) chalk, conspicuous in cliff sections, and containing an acme of the crinoid ''Uinta..."
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