The origin of Holocene shell deposits in the chenier plain facies of Essex (Great Britain)

Greensmith, J. T.; Tucker, E.V.

doi:10.1016/0025-3227(69)90015-2

Cited by 52 publications

(16 citation statements)

References 11 publications

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“…As delta-switching processes shifted the sediment supply farther east, earlier deposits were reworked and the coarse lag sediment was concentrated into the chenier ridges that separate marsh zones. Similar chenier plains occur in other mud-rich coastal environments (e.g., coast of England, Greensmith and Tucker, 1969;Australia, Wright and Coleman, 1973;northeastern South America, Eisma et al, 1991;China, Saito et al, 2000). The eastern chenier-plain coast of Louisiana is now prograding due to sediment supply from the Atchafalaya River (Morgan et al, 1953;Wells and Roberts, 1981;Wells and Kemp, 1981;Roberts et al, 1987).…”

Section: The Louisiana Chenier-plain Coastmentioning

confidence: 96%

Coastal mudflat accretion under energetic conditions, Louisiana chenier-plain coast, USA

et al. 2005

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Section: The Louisiana Chenier-plain Coastmentioning

confidence: 96%

Coastal mudflat accretion under energetic conditions, Louisiana chenier-plain coast, USA

et al. 2005

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“…When Price published the first description of the chenier plain in 1955, only two examples could be given: the Mississippi River plain (Louisiana and Texas) and the Para-Amazon-Orinoco River plain (Brazil to Venezuela), which includes the Surinam coast. Since then cheniers have been recognized in other parts of the world: Essex, Great Britain (Greensmith and Tucker, 1969), Broad Sound, Queensland (Cook and Polach, 1973), Groningen, The Netherlands (Roeleveld, 1974), West-Malaysia (Diemont and Van Wijngaarden, 1975), Western Australia (Thorn, 1975), and along the Gulf of Carpentaria, Queensland (Rhodes, pers. comm., 1978).…”

Section: Introductionmentioning

confidence: 99%

Actual development of the chenier coast of suriname (South America)

Augustinus

1980

Sedimentary Geology

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Augustinus, P.G.E.F., 1980. Actual development of the chenier coast of Suriname (South America). Sediment. Geol., 26: 91--113.The Holocene coastal plain of Suriname is a chenier plain. Its actual sedimentological development has been studied during three field-work periods (1966, 1967/1968, 1972). Clay is the predominant sediment in this low-to medium-energy environment. It accumulates in extensive shoreface-attached mudfiats (sometimes considered as giant mudwaves), which migrate continuously to the west due to deposition of slingmud at their west side and simultaneous erosion of the east side. In between the mudflats cheniers may develop.Thin-section analysis of the clay deposits revealed that they are built up of an alternation of thick clayey laminae and thin laminae of silt and fine sand. The clayey laminae chiefly show a unistrial plasmic fabric. Disturbaces in the upper zone are caused by bioturbation.Two types of cheniers can be distinguished. One type contains fine sand which has been winnowed out of the pelite deposits. Since this sand is brought from the shelf the chenier formation begins at approximately mean low-water level. Longshore bars are formed and these are driven shoreward by wave action. The other type is built up of medium to coarse sand supplied by a local river. It is transported westward by beachdrift in a narrow zone around the mean high-water line. These cheniers develop therefore at or just above the mean high-tide level.The sedimentary structures of both types of cheniers have many characteristics in common. However, each type also has its own distinct features.

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“…This process will be reinforced by subsequent storm processes as the growing shell ridge acts as a barrier and captures more coarse materials (Meldahl, 1995). The formation of shell ridges in Shoal Bay (Darwin, Australia), the Northern Gulf of California, and Essex (Great Britain) is closely connected to storms (Woodroffe and Grime, 1999;Greensmith and Tucker, 1969 ;Neal and Richards, 2002).…”

Section: Storm Wavesmentioning

confidence: 97%

“…On aerial photographs these barrier bars are crescent-shaped, with a protruding side toward the sea and a concave side facing the land. Fresh shell ridges are located near the high water line, and the ones near land are relatively older (Augustinus, 1989;Greensmith and Tucker, 1969;Wang, 1964Wang, , 1989. Due to different physical surroundings and hydro-dynamical conditions, there is a great difference in degree of development and composition between the ridges of different regions (Table 1).…”

Section: Introductionmentioning

confidence: 99%

The sedimentary characteristics and formation mechanism of shell ridges along the southwest coast of Bohai Bay

Liu

Zhuang

Han

et al. 2005

J Ocean Univ. China

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The present paper studies the sedimentary characteristics and mechanism of the shell ridges on the southwestern coast of Bohai Bay, which are the largest and have the highest shell (or shell fragment) content in the world. These shell ridges are composed of two sedimentary subfacies: the ridge subfacies and the ridge infill subfacies with different inner textures and sedimentary structures. The ridge subfacies primarily consists of fresh shells and/or shell fragments with parallel beddings and high-angle oblique beddings. The ridge infill subfacies consists of finer shell fragments and silty sand with parallel beddings oblique to land. The evolution of the shell ridge is controlled by the accumulation of substantial shell material, the relative slow erosion of shoreline, storm waves, winds and the shift of river routes. Wind tunnel tests indicate that the critical movement velocity of shell is lower than that of quartz sand of the same grain size. Deltaic progradation alternates with shell ridge growth. While the Yellow River empties into the sea through this area, accompanied by deltaic progradating, the shell material is scarce, which is unfavorable to the growth of the shell ridge. Conversely, erosion occurs along an abandoned delta coast where a shell ridge may develop, e.g. the shell ridge on the southwest of Bohai Bay.

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The origin of Holocene shell deposits in the chenier plain facies of Essex (Great Britain)

Cited by 52 publications

References 11 publications

Coastal mudflat accretion under energetic conditions, Louisiana chenier-plain coast, USA

Coastal mudflat accretion under energetic conditions, Louisiana chenier-plain coast, USA

Actual development of the chenier coast of suriname (South America)

The sedimentary characteristics and formation mechanism of shell ridges along the southwest coast of Bohai Bay

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