. Bulletin of the British Museum (Natural History), Geology. CENOMANIAN W^ •f^/y ^ ' ^ « --?---! \ V-J xi/. Fig. 21 The correlation of the mid-Cretaceous from Devizes (Wiltshire) to Buckland Newton (Dorset). though its fauna can be collected from the famous 'coprolite bed'. The relationship between an absent dispar Zone and an overlying bed containing dispar faunal elements is discussed in the section on the SW Province. The other characteristic feature of the Anglian Trough is the presence of the Totternhoe Stone (Chilton Stone, Burwell Rock) immediately below the mid-Cenomanian non-sequence.
. Bulletin of the British Museum (Natural History), Geology. CENOMANIAN W^ •f^/y ^ ' ^ « --?---! \ V-J xi/. Fig. 21 The correlation of the mid-Cretaceous from Devizes (Wiltshire) to Buckland Newton (Dorset). though its fauna can be collected from the famous 'coprolite bed'. The relationship between an absent dispar Zone and an overlying bed containing dispar faunal elements is discussed in the section on the SW Province. The other characteristic feature of the Anglian Trough is the presence of the Totternhoe Stone (Chilton Stone, Burwell Rock) immediately below the mid-Cenomanian non-sequence. The relationship between this lithological unit and the non-sequence has already been described (p. 66). The distribution of this bed is shown in Fig. 18, and the succession above it in the Liddington borehole in Fig. 20. 3. The Berkshire - North Kent Swell At present little is known about the sequences in this area. Work in progress indicates a large hiatus below the mid-Cenomanian non-sequence in west central Buckinghamshire, but the Albian-Cenomanian boundary has not yet been studied. 4. The Wessex Trough {North-western Region) At present very little information is available concerning the base of the Lower Chalk and the fauna of the Upper Greensand from the area between Chinnor and Warminster. This region has not been studied in the same detail as south Wiltshire and north Dorset. However, Kelly (1971) recorded Albian ammonites from the Upper Greensand at Edington (Wiltshire). Spath (1923-43) demonstrated that the Potterne Rock contained a rich, non-phosphatized ammonite fauna of Callihoplites auritus Subzone age, while above this horizon the 30 m of glauconitic sands yielded elements from the Stoliczkaia dispar Zone. At Edington, Kelly records a phosphatized fauna of 76. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble
Size: 1923px × 1300px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbritishmuseumnaturalhistory, bookcentury1900, bookcoll
