Southern Region Chalk Group Lithostratigraphy: Bristow et al. (1997) - Margate Chalk

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The Margate Chalk, c. 20-25 m thick, occurs on the East Kent coast and local tectonic highs (Bristow et al., 1997). It was originally described by Robinson (1986), comprising very soft, pure white, sparsely flinty chalk, and equates with the highest Seaford Chalk and lower to middle Newhaven Chalk of Bristow et al. (1997). The base of the unit is marked by the Barrois Sponge Bed of the North Downs Chalk Group succession, and the top is the Tertiary erosion surface on the Isle of Thanet (Bristow et al., 1997).

Macrofossil Biozonation: top M. coranguinum Zone, U. socialis Zone, M. testudinarius Zone, ?U. anglicus Zone, basal O. pilula Zone

Correlation: see Correlation with other Southern Region successions

see Correlation with other UK successions


BRISTOW, C. R., MORTIMORE, R. N. & WOOD, C. J. 1997. Lithostratigraphy for mapping the Chalk of southern England. Proceedings of the Geologists' Association, Vol. 108, 293-315.

ROBINSON, N D.1986. Lithostratigraphy of the Chalk Group of the North Downs, southeast England. Proceedings of the Geologists' Association, Vol. 97, 141-170.

See: Margate Chalk (Robinson, 1986), flint, Seaford Chalk, Newhaven Chalk, Barrois Sponge Bed.