Definitions

1. noun

A type of sedimentary rock formed from alternating layers of clay, sand, and gravel, often found in mountain ranges.

“The flysch formation in the Alps is a result of tectonic plate movement millions of years ago.”

2. noun

A type of rock sequence deposited in a marine or lacustrine environment, typically consisting of alternating layers of sandstone, shale, and conglomerate.

“The flysch sequence in the Himalayas provides valuable information about the region’s geological history.”