Southern Region Chalk Group Lithostratigraphy: The North Downs (Robinson, 1986) - Abbotts Cliff Chalk Formation

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The Abbotts Cliff Chalk Formation (stratotype: Abbotts Cliff Path [TR268 385] ), is c. 22 m thick at Abbotts Cliff, and comprises almost featureless white chalk, with indistinct argillaceous rhythms and patches of calcarenitic chalk in the lower part (Robinson, 1986). Detailed examination reveals extensive Thalassinoides and Chondrites bioturbation (Robinson, 1986). Two subdivisions are recognised: the Hay Cliff Member overlain by the Capel-le-Ferne Member.

Macrofossil Biozonation: A. jukesbrownei Zone & C. guerangeri Zone (Robinson, 1986)

Correlation: see Correlation with other lithostratigraphical schemes for the Southern Region

see Correlation with other UK regions

References

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: Hay Cliff Member, Capel-le-Ferne Member

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