1. a geological formation consisting of alternating layers of sandstone and shale deposited in deep marine environments
Usage: geological

Examples

• The flysch deposits in the Alps provide evidence of ancient ocean basins.
• Geologists studied the flysch formation to understand the region’s tectonic history.
• The characteristic alternating layers of flysch are visible in the cliff face.
• Flysch formations are commonly found in mountain belts around the world.
• The turbidity currents that created this flysch occurred millions of years ago.