Sentence Examples with the word outflows

Besides the plant beds extensive outflows of basic lava rest directly upon the Cambrian and Ordovician strata.

In the middle of Iceland, where the geological foundation is tuff and breccias, large areas are buried under ancient outflows of lava, which bear evidences of glacial scratching.

The existence of outflows or springs of gas in the region west of the Alleghanies had long been known, and much gas was used for illuminating purposes in Fredonia, New York, as early as 1821.