THE 



PHILOSOPHICAL MAGAZINE 

 AND JOURNAL. 



28'" FEBRUAIi Y 1823. 



XX. Geological Section of Hunstanton Clijjf, Norfoll: By 

 Mr. Richard Taylor. 



To the Editors of the Philosophical Magazine and Journal. 



Gentlemen, 

 'T'HE subjoined sketch represents a section of the lower 

 -*■ chalk strata, at the point where their course to the north- 

 ward is interrupted, at Hunstanton Cliffj by the German 

 Ocean. The intersection of the chalk beds, and of some of 

 tlie succeedhig strata, forms at this point a clift' of a mile in 

 length, in which the general inclination to the eastward may 

 be observed. This spot is interesting to the collector of spe- 

 cimens of fossil remains, from the number and variety it pro- 

 duces. 



Sfxtion. 



No. 1 . 2 feet. The upper or vegetable soil varies from six 

 inches to four feet. 



No. 2. 36 feet of chalk rock at the thickest part : the beds 

 much disjointed and cleft in all directions. The chalk is suf- 

 ficiently hard and durable to be used in building the houses 

 of the neighbouring villages; but from long exposure to 

 weather, it decomposes. It has very few traces of organic re- 

 mains, r 



No. 3. 3 feet, a compact stratum of very hard chalk, con- 

 tauiing an immense quantity of marine remains, the most im- 

 portant of which are Inoceramus Cuvicri — 2 species. Com- 

 plete specimens are with difficulty disengaged from their hard 

 matrix; — innumerable fragments of this shell are dillused 

 throughout the stratum. Echinites, Spatangus, Co?mlus, Flu- 

 stneonEchinites and Belenmites, Fbistra utricularis? Spines of 

 Echini. Terehratida ovata, T. plicala^ T. suhundata, T. in- 

 termedia, and two other species. Small Bclcninites in gi'eat 

 numbers. Se/pula, two species ; Ammonites Greeyionghii, very 

 large, but not abundant; sometimes two feet in diameter. 

 Sponges or alcyonites in this chalk are about ten inches dia- 

 meter; their surfaces marked with parallel waving or scrpen- 



Vol. 61. No. 2!)8. /'W;. 1823. J. tine 



