Definition for FLETZ

FLETZ, a. [G. flötz, a layer.]

In geology, the fletz formations, so called, consist of rocks which lie immediately over the transition rocks. These formations are so called because the rocks usually appear in beds more nearly horizontal than the transition class. These formations consist of sandstone, limestone, gypsum, calamine, chalk, coal, and trap. They contain abundance of petrifactions, both of animal arid vegetable origin. Good.

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