The wonders of geology; or, a familiar exposition of geological phenomena; being the substance of a course of lectures delivered at Brighton / Gideon Algernon Mantell. From notes taken by G.F. Richardson.
- Gideon Mantell
- Date:
- 1839
Licence: Public Domain Mark
Credit: The wonders of geology; or, a familiar exposition of geological phenomena; being the substance of a course of lectures delivered at Brighton / Gideon Algernon Mantell. From notes taken by G.F. Richardson. Source: Wellcome Collection.
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![THE OOLITIC SYSTEM. Upper oolite of Portland, Wilts, Bucks, Berks, &c. 1. Portland oolite—limestone of an oolitic structure, abounding in ammonites, trigo- ni®, &c. and other marine exuviae—green / and ferruginous sands—layers of chert. 12. Kimmeridge clay—blue clay, with septaria I and bands of sandy concretions—marine | shells and other organic remains—ostrea V deltoidea. SI. Coral-oolite, or coral-rag—limestone com- posed of corals, with shells and echini. 2. Oxford clay; with septaria and numerous (fossils — beds of calcareous grit, called Kelloway-rock, abounding in organic remains. of Oxford, Bucks, Yorkshire, See. Lower oolite of Gloucestershire, Oxfordshire, and Northamptonshire. Cornbrash—a coarse shelly limestone. 2. Forest marble—sand, with concretions of fissile arenaceous limestone — coarse shelly oolite—sand, grit, and blue clay. 3. Great oolite—calcareous oolitic limestone and freestone ; reptiles, corals, &e. upper beds shelly. Stonesfield slate—land plants; insects, reptiles, mammalia. h 4. Fuller’s earth beds—marls and clays, with fuller’s earth — sandy limestones and shells. 5. Inferior oolite—coarse limestone—conglo- merated masses of terebratula? and other shells — ferruginous sand, and concre- tionary blocks of sandy limestone, and shells. fl. Shelly limestones—alternations of sand- Lower oolite I stones, shales, and ironstone, with plants. of < 2. Ferruginous limestone, with carbonized Brora in Scotland. | wooci and shel]s- '3. Sandstone and shale, with two beds of coal.](https://iiif.wellcomecollection.org/image/b22018128_0027.jp2/full/800%2C/0/default.jpg)
