Geology Reference
In-Depth Information
Fig. 9.3 Distribution of
bottom sediment types and
tidal flats that the coasts are
surrounded directly by
fine-grained deposits in light
to dark yellow in the Bohai
Sea, the Yellow Sea, and the
East China Sea (After Li
et al. 2005b )
Tidal flats flanking the coastal plains are directly
open to the sea, thereby named as truly open-coast
tidal flats (Dalrymple, pers comm 2010). Muddy and
sandy open-coast tidal flats are generally linked to
tide-dominated deltas/estuaries of large and small riv-
ers, respectively. Larger river deltas tend to foster
wider (cross-shore) and longer (alongshore) muddy
tidal flats bordering the extensive chenier plains. Muddy
open-coast tidal flats are globally widely extensive,
considering that most of mega-river deltas are tide
dominated or under significant tidal influence, build-
ing up extensive Holocene chenier plains in the world
(Fig. 9.2 , Table 9.1 ). The two longest stretches of
muddy open-coast tidal flats are linked to the river del-
tas of the Changjiang and the Amazon, respectively.
North Jiangsu tidal flats stretch over 600 km long
between the abandoned Huanghe Delta and the
Changjiang Delta at a macrotidal setting (Figs. 9.2 and
9.3 , Wang et al. 2002 ). Guiana tidal flats extend over
1,600 km long from the Amazon River Delta to the
Search WWH ::




Custom Search