Example Sentences

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The interstratification of loam and volcanic ejectamenta was probably occasioned by the fluviatile mud having gradually enveloped the cones of loose scoriae after they were completely formed.

From The Antiquity of Man by Lyell, Charles, Sir

It presents, like the upper clay, frequent interstratification with well-bedded deposits of sand and gravel.

From The History of the European Fauna by Scharff, Robert Francis

But some of these same porphyries are partially unconformable, as b, and may lead us to suspect that the others also, notwithstanding their appearance of interstratification, have been forcibly injected.

From The Student's Elements of Geology by Lyell, Charles, Sir