| 释义 |
ˌpalæogeomorˈphology
Also (chiefly U.S.) paleo-.
[f. palæo-, paleo- + geomorphology.]
The geomorphology of ancient landscapes, esp. as represented today by features that are buried or newly exhumed.
1954W. D. Thornbury Princ. Geomorphol. ii. 31 It might seem that the recognition of ancient erosion surfaces and the study of ancient topographies does not belong in the field of geomorphology, but the approach of the geomorphologist may be the most logical one. This aspect of geomorphology may well be called paleogeomorphology. 1966R. Martin in Bull. Amer. Assoc. Petroleum Geologists L. 2278/1 Enlarging on Thornbury's concept, the writer groups under the term paleogeomorphology the study of all geomorphic phenomena which are recognizable in the subsurface and in outcrops of previously buried formations. 1968R. W. Fairbridge Encycl. Geomorphol. 805/1 Paleogeomorphology is of practical importance insofar as many accumulations of oil, gas, certain ores and fresh water are related to buried relief features. 1972Geo Abstr. A. 727 The palaeogeomorphology of the region is dominated by glacial features upon which karst features are now being superimposed.
Hence ˌpalæogeomorphoˈlogical, -ˈlogic adjs.; ˌpalæogeomorˈphologist, one who studies palæogeomorphology.
1960Canad. Mining & Metallurg. Bull. LIII. 529/2 Buried relief features are of importance to the petroleum geologist whenever they lead to the trapping of hydrocarbons, either directly or indirectly. In areas where such features abound,..paleogeomorphological features rank in importance with sedimentation and structure as hydrocarbon trapping agents. 1963Oil & Gas Jrnl. 21 Oct. 140/1 It is convenient for the paleogeomorphologist to know that water travelling at a certain speed can move particles of specific sizes and density. 1966Bull. Amer. Assoc. Petroleum Geologists L. 2279/1 An important difference between stratigraphic and paleogeomorphologic traps is the pronounced three-dimensional aspect of the latter. Ibid. 2297/1 Although these [observations] have received practically no attention from ‘modern’ geomorphologists, they are of considerable importance to the paleogeomorphologist in the exploration for oil and gas. 1975Nature 24 July 279/2 This work has resulted in the elucidation of the geographic extent, stratigraphic succession, facies change, palaeoenvironments and palaeogeomorphological setting of the basin. |