The Student’s Elements of Geology

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Author: Charles Lyell

Gault.

(FIGURE 272. Ancyloceras spinigerum, d’Orb. Syn. Hamites spiniger, Sowerby. Near Folkestone. Gault.)

The lowest member of the Upper Cretaceous group, usually about 100 feet thick in the S.E. of England, is provincially termed Gault. It consists of a dark blue marl, sometimes intermixed with green sand. Many peculiar forms of cephalopoda, such as the Hamite (Figure 272), and Scaphite, with other fossils, characterise this formation, which, small as is its thickness, can be traced by its organic remains to distant parts of Europe, as, for example, to the Alps.

Twenty-one species of British Ammonites are recorded as found in the Gault, of which only eight are peculiar to it, ten being common to the overlying Chloritic series.

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Chicago: Charles Lyell, "Gault.," The Student’s Elements of Geology, ed. Bryant Conant, James and trans. Babington, B. G. (Benjamin Guy), 1794-1866 in The Student’s Elements of Geology Original Sources, accessed October 1, 2022, http://www.originalsources.com/Document.aspx?DocID=KZZPKA6F5CG1TGU.

MLA: Lyell, Charles. "Gault." The Student’s Elements of Geology, edited by Bryant Conant, James, and translated by Babington, B. G. (Benjamin Guy), 1794-1866, in The Student’s Elements of Geology, Original Sources. 1 Oct. 2022. http://www.originalsources.com/Document.aspx?DocID=KZZPKA6F5CG1TGU.

Harvard: Lyell, C, 'Gault.' in The Student’s Elements of Geology, ed. and trans. . cited in , The Student’s Elements of Geology. Original Sources, retrieved 1 October 2022, from http://www.originalsources.com/Document.aspx?DocID=KZZPKA6F5CG1TGU.