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What is an Erratic?
Published online by Cambridge University Press: 01 May 2009
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1 There is some indication of a break in this Tertiary series, for apparently rolled fragments of Nummulitic Limestone are found in it at various scattered horizons, but the beds are all parallel. And there is no evidence that any rock of the Salt Range older than Nummulitic was being eroded during Tertiary deposition. The Cretaceous (?) Olive group is, however, older than the Nummulitic, and ought to have been covered duriug deposition of any subsequent beds.
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