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- ...Permian succession in northern England. At the base of the formation, the Concretionary Limestone Member comprises thinly bedded granular dolostone that is locally recrystallised a ...28 KB (4,268 words) - 12:30, 6 May 2016
- [[File:P693033.jpg|thumbnail|Detail of the Concretionary Limestone Member of the Roker Formation from a coastal exposure near Sunderland [NZ 412 555] ...24 KB (3,594 words) - 15:07, 5 May 2016