. Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . Fig. 143.—Pleurotomariacarina t Fig. 144.—Product uspunctatus. Fig. 140.—Stem of Encrinit?.Characteristic Fossils of the Carboniferous Limestone. (From Taylors Common British Fossils.) conceive the idea, that the waves had been turned intostone as they approached the coast in a west north-westerly direction, and that you were now lookingdown upon a palaeozoic sea. The rock is a compact thickly-bedded sub-crystallinelimestone, and when viewed microscopically has agranular appea
. Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . Fig. 143.—Pleurotomariacarina t Fig. 144.—Product uspunctatus. Fig. 140.—Stem of Encrinit?.Characteristic Fossils of the Carboniferous Limestone. (From Taylors Common British Fossils.) conceive the idea, that the waves had been turned intostone as they approached the coast in a west north-westerly direction, and that you were now lookingdown upon a palaeozoic sea. The rock is a compact thickly-bedded sub-crystallinelimestone, and when viewed microscopically has agranular appearance. It is almost, if not wholly,made up of organic remains, consisting of foraminifera,minute ossicles of encrinites, fragments of whatappear like tests and spines of echinoderms, andsmall bodies resembling minute corals. All are fairlywell preserved, but nevertheless exhibit to someextent the effects of attrition to which they have beensubjected, as occupants of a plastic mass encountering limestone of undoubtedly marine origin can be and hasbeen formed in water sufficiently shallow to receivethe impress of the waves as they rolled over
Size: 1734px × 1441px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectscience
