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BATHONIAN SERIES

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Originally appearing in Volume V03, Page 513 of the 1911 Encyclopedia Britannica.
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BATHONIAN See also:

SERIES , in See also:geology. The typical Bathonian is the See also:Great Oolite series of See also:England, and the name was derived from the " See also:Bath Oelite," so extensively See also:mined and quarried in the vicinity of that See also:city, where the See also:principal strata were first studied by W. See also:Smith. The See also:term was first used by J. d'See also:Omalius d'ilalloy in 1843 (Precis Geol.) as a synonym for " Dogger "; but it was limited in 1849 by A. d'See also:Orbigny (See also:Pal. See also:Franc. Jun. i. p. 607). In 1864 See also:Mayer-Eymar (See also:Tabl. Synchron.) used the word " Bathien "=See also:Bajocian+Bathonian (sen. str.). According to See also:English practice, the Bathonian includes the,following formations in descending See also:order: See also:Cornbrash, See also:Forest See also:Marble with See also:Bradford See also:Clay, Great or Bath Oolite, Stonesfield See also:Slate and Fullers' See also:Earth. (The Fullers' Earth is sometimes regarded as constituting a See also:separate See also:stage, the " Fullonian.") The " Bathonien " of some See also:French geologists differs from the English Bathonian in that it includes at the See also:base the See also:zone of the ammonite Parkinsonia Parkinso-ni, which in England is placed at the See also:summit of the Inferior Oolite. The Bathonian is the See also:equivalent of the upper See also:part of the " Dogger " (See also:Middle See also:Jurassic) of See also:Germany, or to the base of the Upper See also:Brown See also:Jura (substage " E " of See also:Quenstedt).

Rocks of Bathonian See also:

age arc well See also:developed in See also:Europe: in the N.W. and S.W. polite limestones are characteristically associated with See also:coral-See also:hearing, crinoidal and other varieties, and with certain beds of clay. In the N. and N.E., See also:Russia, &c., See also:clays, sandstones and ferruginous oolites prevail, some of the last being exploited for See also:iron. They occur also in the extreme See also:north of See also:America and in the See also:Arctic regions, See also:Greenland, See also:Franz Josef See also:Land, &c.; in See also:Africa, See also:Algeria, See also:German See also:East Africa, See also:Madagascar and near the Cape (Enon Beds); in See also:India, See also:Rajputana and Gulf of See also:Cutch, and in See also:South America. The well-known See also:Caen See also:stone of See also:Normandy and " Hauptrogenstein" of See also:Swabia, as well as the "Eisenkalk" of N.W. Germany, and " Klaus-Schichten " of the See also:Austrian See also:Alps, are of Bathonian age. For a See also:general See also:account, see A. de See also:Lapparent, Traite de g'ologie (5th ed., 1906), vol. ii.; see also the See also:article JURASSIC. (J. A.

End of Article: BATHONIAN SERIES

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