Preserved sediments are generally associated with continental glaciers. Much glacial sed ultimately ends up in river, lake, or desert depositional systems.
Most glacial sediment is unfossiliferous.
Braided streams characteristic of watersheds with high discharge and suspended load common at the toe of glaciers, lower reaches of alluvial fans. Meandering streams characteristic of watersheds with lower discharges and less suspended sediment. Deposition, particularly in meandering streams, occurs as rivers migrate laterally across flood plain. Most deposition occurs during floods - organisms, soil buried rapidly. This is true only if deposition is continuous.