The Superficial Deposits of The Country north of Stratford on Avon

The district under discussion in this paper comprises:— (a) Areas in which the superficial deposits have been mapped and studied in detail by the author (Pl. XXVII, map). (i) The valley of the Warwickshire Avon between Leamington and Stratford and of its tributary, the Dene, together with the adjacent country extending eastwards to the longitude of Compton Verney and Leamington, and westwards to the river Arrow. (ii) The country roughly bounded by the longitude of Warwick and Kenilworth Castle (W. 1° 35′′) on the east and by the upper valley of the Alne on the west, and extending northwards from the district described above (i) to the country included in the Birmingham Sheet (168) of the Geological Survey 1-inch map. (iii) The valley of the Alne to its junction with the Arrow. (b) A wider area, surrounding the aforementioned districts, in which the superficial deposits have been examined, but where continued observation has not been possible. Reference will be made to the lower valley of the Warwickshire Avon, the superficial deposits of which I have described elsewhere (Tomlinson, 1925), and to the valley of the Warwickshire Stour, the superficial deposits of which have been described by Mr. H. G. Dines (Richardson and others, 1929) and myself (1929). The object of this paper is to attempt a classification of the superficial deposits of the areas which have just been defined, with a view to determining their distribution and relative age. Since the district presents so many difficulties of interpretation and appears