Chalk Group Lithostratigraphy: East Anglia - Melbourn Rock

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The Melbourn Rock is as described in the adjacent Chilterns Region. It forms a conspicuous topographic feature throughout the area, from the Cambridge district (Worssam & Taylor, 1969) to north Norfolk (Gallois, 1994). Near Bury St. Edmunds it is c. 2m thick, and double this around Kings Lynn (Bristow, 1990; Gallois, 1994). Peake & Hancok (1969) noted that as the Plenus Marls thinned northwards in East Anglia, and developed horizons of chalk pebbles, the contrast with the overlying Melbourn Rock became less marked than in southern England.

Macrofossil Biozonation: M. gelinianum Zone (pars), N. juddii Zone & ? Mytiloides spp. Zone (pars)

Correlation: see Correlation with other UK Chalk Group successions

References

BRISTOW C R. 1990. Geology of the country around Bury St. Edmunds. Memoir of the British Geological Survey.

GALLOIS, R W.1994. Geology of the country around King's Lynn and The Wash. Memoir of the British Geological Survey.

PEAKE, N B & HANCOCK, J M. 1970. The Upper Cretaceous of Norfolk [reprinted with corrigenda and addenda] In LARWOOD, G P & FUNNELL, B M (eds.), The Geology of Norfolk. London & Ashford.

WORSSAM, B C & TAYLOR, J H. 1969. Geology of the country around Cambridge. Memoir of the British Geological Survey.

See: Melbourn Rock (Chilterns Region)