How do we describe those rocks? Well this is what the British Geological Survey have to say:
"Pale grey to yellowish brown limestones; lower part dominated by medium- to coarse-grained ooidal shell-fragmental grainstone ('Lower Limestone'), passing up into rubbly, poorly sorted, shelly, shell-detrital, moderately to highly pisoidal grainstones and packstones ('Pea Grit') with thin marl beds. South of Painswick, the succession is apparently replaced by ooidal grainstones comprising the Frocester Hill Oolite and Selsey Hill Oolite of Mudge, D C, 1978a, but the relationship between these strata and the type Crickley Member is uncertain."
For more enlightenment, Rocks is the place...
Friday, August 1, 2008
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