| 释义 |
chronostratigraphy, n. Geol.|ˌkrəʊnəʊstrəˈtɪgrəfɪ, ˌkrɒnəʊstrəˈtɪgrəfɪ|
[f. Gr. χρόνο-ς time + stratigraphy n.]
The branch of stratigraphy concerned with the age of strata on an absolute scale (i.e. in terms of years).
1961Rep. 21st Internat. Geol. Congr. 1960 xxv. 12 A major goal of chronostratigraphy is the regional and..world-wide assignment of the rocks of the earth's crust to their proper position with respect to the passage of geologic time. 1970Earth-Sci. Rev. VI. 267 Stratigraphy comprises three major aspects: lithostratigraphy, biostratigraphy and chronostratigraphy. 1989Nature 27 July 296/1 The Specmap project has defined the timing of δ180 variations in the ocean of the past 800 kyr, providing the basic chronostratigraphy for late Pleistocene palaeoclimatology.
So ˌchronostratiˈgraphic, ˌchronostratiˈgraphical adjs.
1954Compt. Rend. XIX Congrès Géol. Internat. 1952 xiii. 205 Time-stratigraphic (chrono-stratigraphic) units are often used incorrectly with the connotation of a certain lithology or a certain fossil content. 1966Earth-Sci. Rev. I. 5 A three-fold stratigraphical classification—lithostratigraphical, bio-stratigraphical and chronostratigraphical—seems to have been accepted by a majority of stratigraphers. 1969Proc. Geol. Soc. Aug. 158 ‘Chronostratigraphic zones’ or ‘Chronozones’ are regarded as informal units. 1979Nature 18 Jan. 190/1 It is also clear that glaciers reached Poland only during parts of the corresponding chronostratigraphical unit, the Weichselian Stage. 1992A. G. Dawson Ice Age Earth iv. 45 A major difficulty in the Late Quaternary literature of Canada and the USA is the different chronostratigraphic terminology used in both countries. |