The geology of soils and substrata, with special reference to agriculture, estates, and sanitation . FIG. 22.—COAST TOWARDS ROSEMULLIOX HEAD, NEAR FALMOUTH (W. A. E. Ussher.) Rock-platforms (Portscatho Series, etc.) at sea-level, with raisedbeach and head above. r-f^UA; Slate (Mylor Series).. FIG. 23.—CLIFF AT GODREVY, EAST OF ST. IVES BAY, CORNWALL. (W. A. E. Ussher.)* through careless climbing over this extremely coarsescree, owing to a large block turning over and crushingthe unfortunate * Geol. Mag., 1879, pp. 168, 205. t Fifteenth Annual Report of the Geological Commission, CapeT
The geology of soils and substrata, with special reference to agriculture, estates, and sanitation . FIG. 22.—COAST TOWARDS ROSEMULLIOX HEAD, NEAR FALMOUTH (W. A. E. Ussher.) Rock-platforms (Portscatho Series, etc.) at sea-level, with raisedbeach and head above. r-f^UA; Slate (Mylor Series).. FIG. 23.—CLIFF AT GODREVY, EAST OF ST. IVES BAY, CORNWALL. (W. A. E. Ussher.)* through careless climbing over this extremely coarsescree, owing to a large block turning over and crushingthe unfortunate * Geol. Mag., 1879, pp. 168, 205. t Fifteenth Annual Report of the Geological Commission, CapeTown, 1911, p. 46. QUATERNARY DEPOSITS (PLEISTOCENE) 223 The term Head has been applied to surface accumula-tions of angular and sub-angular stones in a sandy orclayey matrix that are to be seen along many coasts, andnotably in Cornwall, where the stones comprise quartz,slate, blocks of granite, greenstone, etc. Good examplesare seen near Falmouth and in St. Ives Bay (see Figs. 22and 23), while to the east of Marazion there is a cliff ofHead 40 feet high. These deposits, though they maylocally be formed to some slight extent now, are for themost part of ancient date, and were accumulated duringPleistocene times under colder climatic conditions. The rubble of loose weathered rock-frag
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeology, bookyear1912
