. Bulletin of the British Museum (Natural History) Geology Supplement. IN THE ANGLO-PARIS BASIN 75 fragment of Hoplites (Isohoplites) sp. (GSM. Ca 1416) was obtained by Dr. R. Casey from 1 foot 6 inches (0-457 m-) above the basal conglomerate indicating the eodentatus Subzone. From 2-4 feet (0-60-1-21 m.) above the conglomerate there occur glau- conitic gritty darkish grey clays with fossils in which the shells have been replaced by pyrite. Ammonites from this bed collected by Dr. Casey include Lyelliceras cf. lyelli (GSM. Ca 1423-4) and Hoplites (H.) spp. including H. (H.) baylei (GSM. Ca 142
. Bulletin of the British Museum (Natural History) Geology Supplement. IN THE ANGLO-PARIS BASIN 75 fragment of Hoplites (Isohoplites) sp. (GSM. Ca 1416) was obtained by Dr. R. Casey from 1 foot 6 inches (0-457 m-) above the basal conglomerate indicating the eodentatus Subzone. From 2-4 feet (0-60-1-21 m.) above the conglomerate there occur glau- conitic gritty darkish grey clays with fossils in which the shells have been replaced by pyrite. Ammonites from this bed collected by Dr. Casey include Lyelliceras cf. lyelli (GSM. Ca 1423-4) and Hoplites (H.) spp. including H. (H.) baylei (GSM. Ca 1426), and Beudanticeras cf. albense (GSM. Ca 1431). A specimen of Protanisoceras (P.) cf. barrense (GSM. Ca 1437) preserved in the same manner was picked up from the tip. This assemblage indicates the lyelli Subzone. One specimen (GSM. Zn 2472) is a Hoplites (H.) sp. preserved partly phosphatised in mid-grey shelly clay and is stated to have come from a height of about 12 feet (3-65 m.) above the basal con- glomerate ; it indicates the spathi suit \_irj •»„ _i_i Low«r Gracnsand Fig. 31. Locality map of borings yielding subzonal information in the Kent coalfield. Ebbsfleet Fragments of the core preserved in the Institute of Geological Sciences from this boring, situated 495 yds S. 5°E. of Ebbsfleet House, Eastry (TR 337619), about 7$ miles E. of the Chislet Colliery, shows that the Lower Gault was entered at between depths of 977 and 978 feet (297-79-298-1 m.) and is about 27 feet thick (8-23 m.) (Lamplugh, Kitchin & Pringle 1923 ; 178). Loricatus Zone sediments are definitely present at 12 feet 6 inches (3-81 m.) above the base of the Gault (GSM., PI. 3854), and. 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 the original British Museum (Natural History). London : BM(NH)
Size: 1897px × 1318px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbritishmuseumnaturalhistory, bookcentury1900, bookcoll
