11. The exposed seabed is a mixture of sand and mud flats . 12. Hundreds were queued up on the mud flats as the boats pulled up. 13. Some 200 German bombs fell on the mud flats and sandbanks off Shoeburyness. 14. The first Quakers settled in an area known as Mud Flat about 1795. 15. The landscape contains mud flats , salt flats, and gypsum sand dunes. 16. The fossils can be found in mud flats , faults and cliffs. 17. Low tide exposes extensive mud flats that add to tourism and environmental activities. 18. Both inlets are shallow, becoming predominantly sand and mud flats at low tide. 19. Pioneer plants such as " alkali grasses, grow on and stabilize the mud flats . 20. The strata lie marine deposits with intermittent mud flat sediments, and occasional stream deposits.
