OCR Text |
Show 390 Periods nnd I Groups. F g. e 0 ":::'s 0 Q) ~ ~,... 0 0 ~ l'il p.. >< P'. -<1 ~ 0 0 ~ 00 ::: ...... G ci. ;::: e 0 = Q) "'d c; Q) 1:5: ORDER Ol<" SUPERPOSITION OF TABLE II. continued. Some of the L""alities where Ute Formation occun. CalcaireGrossier ( tt ), plastic clay, sands, sandstonr.s, &c., with mm·ine fossils (b). Calcaire siliceuxsandstones and conglomerates, red marl, green and white marls, limestone, gypseous marls, -with land and freshwater fossils (c). a. Paris basin. b. Paris, London, and Hampshire basins, Isle of Wight. c. Paris Basin, Isle of Wight, Auvergne, Velay, Canto.l. I. Maestricht Beds.-Earthy white limestone with silkeous masses, re· sembling cltalk (marine). 2. Chalk with flints (marine). 3. Chalk without flints (marine). St. Peter'~ Mount, Maestricht. 4. Upper green sand (~arine).Marly stone, and sand w1th green particles; layers of calcareous sandstone. ) North and South Downs, nnd parts of the intervening Weald of Kl·nt, Suney, and Sussex. 5. Gault (marine).--:-Blu.e clay,with numerous fossils, passmg 1nto calcareous marl in the lower parts. 6. Lower green sand (~arine).Grey, yellowish, and greemsh sands, 1-' ferruginous sands .. and s~ndstones, clays, cherts, and s1hceous hmestones . 1 Weald clay (freshwater).-Clay, I for 'the most part without inter~ixture of calcareous matter, somehmes including thin bed,~; of sand and shelly limestone. 2. Hastings sands (frcs~water).Grey1 yellow, and red<hsh-brown sands sandstones, clays, calcareous grits pa~sing into limestone. 3. Pm·beck beds (frcshwatl:.'l').-Various kinds of limestones and marls. Isle of Wight, coasts of Hampshire and DorsetshirP, Yorkshire, North of Ireland. 1, 2. Extensively developed in the central parts of Kent, Surrey, and Sussex. 3. Isle of Purbeck, in Dorset. shire. THE PRINCIPAL STRATA IN EUROPE. 391 '!"'ABLE II. continued. Periods and I Names or tho principal Members nnd general Mine-/ .. Groups. rnl nature of the Formation, Some or tbe LooahtiCa whore the Formnlloa occuro. H 1. Portland beds (marine ).-Coarse shelly limestone, fine-gro.~ined white limestone, compact limestone- all more or less of an oolitic structure ; beds of c~erts. Isle of Portland, Tisbury in Wilt· shire, Aylet~bury. 2. Kimmeridge clay (marine).- Near Kimmeridge on coast of Dor- Blue and greyish-yellow slaty clay, setshire-Sunniug Well, near Oxford. containing gypsum, bituminous slate (Kimmeridge coal). 3. Cvra/ m ,q (marine).-Calcareous Headington, near Oxford-Farring· shelly freestones, largely oolitic; don, in Berkshire-Caine and Steeple coarse limestone, full of corals; yel- Ashton iu Wiltshire-Somersetshire. low sands; calcareous siliceous grits. 4. O:rjo1·d clay (marine).-Dark p. blue tenacious clay with septaria, big tuminous sl1ale, sandy limestone (Kel~ loway rock), iron pyrites, gypsum, New Malton, in Yorkshire-Lin· colnshire- Cambridgeshire - Iluntingdonshire, and mitlland countiesabundantly near Oxford-Somerset. Q) shire-Dorsetshire. c ~ Q) 8 ~ Cl! ~ ~ 5. Cornbrash (marine).-Grey or Mulmsbury, Atford, Wraxall, Chip-bluish rubbly limestone, separated by penham. layers of clay. 1:l 6. Fo1·est marble (marine).-Cali careo-siliceous sand and gritstone ; c; thin fissile beds of limestone, with 0 clay partings; coarse shelly limestone. Whichwood Forest, OxfordshireFrome, south-east of Bath. 7. Great oolite (marine).-V\'hite and yellow oolitic calcareous freestone, coarse shelly limestone, layers of clay. Oolitic limestone, with remains of land animals, bini~, amphibia, plants, sea-shells (a). Kettering, in N orthamptoushireBath- Burforcl, in OxfonlshireBradford, in Wiltshire. (a) Stonesfield, ncar Woodstock, Oxfordshire. 8. l1Jjcrior oolite (marine).-Ful- Cotteswold Hills- Dundry Hill, ler's earth, sol't freestone, sand with near Bristol. calcareous concretions. Limest?nes of various qu.aliti~ls, clays, ~ands, and sn~<~stonc, containing the same.fosslls a11 tho~e occurrm.g m the sent'S of the oollbc group of England, consbt~te the mam body of the Jura chain of mouutains, and cover vu~t tracts of country in Germany. |