Chalk Group Lithostratigraphy: Northern England - Welton Chalk Formation: Revision history

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10 October 2013

  • curprev 12:0812:08, 10 October 2013‎ Dbk talk contribs‎ 3,330 bytes +3,330‎ Created page with "The Welton Chalk Formation (stratotype: Welton Wold Quarry [SE 970 282]), c. 44-54 m thick, comprises marly, thin bedded, flintless, locally shell-rich chalk in the basal few ..."
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