| 释义 |
pediplane Geomorphol.|ˈpɛdɪpleɪn|
[f. pediment1 + plane n.3]
A piedmont slope in arid and semi-arid regions comprising a pediment and a peripediment (or just one of these, if the other is not present). Cf. pediplain.
1942A. D. Howard in Jrnl. Geomorphol. V. 11 The writer proposes the term pediplane as a general term for all degradational piedmont surfaces produced in arid climates which are either exposed or covered by a veneer of contemporary alluvium no thicker than that which can be moved during floods. Ibid. 13 In some localities the up⁓land rocks may be extremely resistant or the basin rocks may be extremely weak... In such regions the pediplane will truncate basin sediments almost exclusively and will consist largely of peripediment. 1948Bull. Geol. Soc. Amer. LIX. 370 In regions of rising base level the pedi⁓plane will be made up for the most part of a peripediment, and the pediment as a near-mountain zone cut on solid rock is sometimes overlooked. 1955Proc. Geologists' Assoc. LXVI. 173 The combined pediment and peripediment may then be describd as a pediplane (Howard, 1942). |