| 释义 |
Dinantian, a. Geol.|dɪˈnænʃɪən|
[ad. F. dinantien (A. de Lapparent Traité de Géol. (ed. 3, 1893) 11. 819), f. Dinant, a town in Belgium + -ian.]
The name of the series of rocks in continental Europe deposited during the Lower Carboniferous period, and of the corresponding geological epoch. Also absol.
[1888J. Prestwich Geol. ii. i. 8 Belgium..Carboniferous..Lower..Limestones of Dinant.] 1903A. Geikie Text-bk. Geol. (ed. 4) II. vi. ii. 1051 The Carboniferous system of the European continent has been grouped by some geologists in three major divisions: 1st, the Lower (Culm, Dinantian), comprising all the Lower Carboniferous rocks up to the Millstone Grit, [etc.]. 1905Q. Jrnl. Geol. Soc. LXI. 264 The designation Dinantian, as including the whole of the Carboniferous Limestone, seems hardly justified by the continuity or clearness of the sequence in the district which has suggested the name. 1959Chambers's Encycl. III. 104/2 The Carboniferous System is well developed throughout Europe where the Dinantian, Namurian, Westphalian and Stephanian are recognized. 1969T. N. George in C.R. 6me Cong. Int. Stratigraphie & Géol. du Carbonifère, 1967 I. 193/1 British Dinantian rocks were deposited under conditions of sustained subsidence. Ibid. 197/2 It is still uncertain whether Vaughan's Avonian precisely equates with the earlier-named Dinantian. |