Editing Flysch (section)

==Sedimentological properties==

Flysch consists of repeated sedimentary cycles with upwards [[Particle size (grain size)|fining]] of the sediments. There are sometimes coarse [[conglomerate (geology)|conglomerates]] or [[breccia]]s at the bottom of each cycle, which gradually evolve upwards into [[sandstone]] and [[shale|shale/mudstone]].  Flysch typically consists of a sequence of shales rhythmically interbedded with thin, hard, [[graywacke]]-like sandstones. Typically the shales do not contain many [[fossil]]s, while the coarser sandstones often have fractions of [[mica]]s and [[glauconite]].