Chalk Group Lithostratigraphy: Northern England - Longwood Marl

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This is a c. 60 mm thick, grey marl containing silt and compacted clay, and occurs in the upper part of the Flamborough Sponge Beds (Whitham, 1993).

Macrofossil Biozonation: I. lingua Zone

Correlation: see Correlation with other UK Chalk Group successions

References

WHITHAM, F.1993. The stratigraphy of the Upper Cretaceous Flamborough Chalk Formation north of the Humber, north-east England. Proceedings of the Yorkshire Geological Society, Vol. 49(3), 235-258.

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