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| The thinly bedded cherts are pelagic oceanic deposits. Pure cherts are separated by darker, less pure chert beds. Strong deformation has produced small-scale folding and pressure-solution cleavage. |
| image credit: Roger Suthren. Ordovician, Karmøy, W Norway |
sedshots
-- images of sediments and sedimentary rocks at virtual-geology.info
This page is maintained
by Roger Suthren. Last
updated
23 January, 2004 10:44