File:Transactions and proceedings of the New Zealand Institute (1913) (14789399323).jpg

Identifier: transactionsproc46newz (find matches)
Title: Transactions and proceedings of the New Zealand Institute
Year: 1913 (1910s)
Authors: New Zealand Institute
Subjects: Science
Publisher: Wellington : J. Hughes, Printer
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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cal attitude,but exhibits no bedding, and is but little jointed. Marine denudationplanes it off to a surface which slopes gently seaward, and which from a dis-tance appears absolutely smooth, though closer inspection reveals numerousinequalities with a relief of a few inches (see Plate XI), and the tabularremnants of the slightly higher platform, several of which are shown inthe photograph, have an exactly similar surface and seaward slope. Their surface is several feet above the present level of high tide, andthey therefore indicate uplift. The height of the residuals above their basesis 6 ft., but this cannot be taken as an absolute measure of the amountof uplift unless it is assumed that the position of high-water mark (in plan)was the same immediately before the uplift as it is now. * J. Barrell, Bull. Geol. Soo. Am., vol. 23 (1912), p. 396. t C. A. Cotton, The Physiography of the Middle Clarence Valley, Geogr. Journ.,vol. 42 (1913), p. 228. Trans. N.Z. Inst., Vol. XLVI. Plate XI.
Text Appearing After Image:
Face v. 293.) Cotton.—The Uplifted East Coast of Marlborough. 293 In fig. 8, A is the present position of high-water mark, and AA ispresent high-water level. If the former position of high-water mark wasseaward of its present position, as at B, the amount of uplift that has takenplace (AB) is less than 6 ft. If, on the other hand, it was shoreward,as at C, the amount of uplift (AC) is greater than 6 ft. In this case it is.improbable that the former position of high-water markwas shoreward of its present position, for there is not a well-defined raisedbeach. It may, however, have been some little distance seaward. These residuals, therefore, afford proof of uplift of 6 ft., or somewhatless. 4. The Strand-plain of the Marlborough Coast. From Cape Campbell south-westward to and a little beyond the mouthof the Clarence River the shore is bordered by an almost continuous strand-plain, broken only at one or two points where outcrops of resistant rocksproject slightly seaward as rocky bluf

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