| 单词 | ra moraine |
| 释义 | > as lemmasRa moraine Any of a series of terminal or recessional moraines in southern Norway having the form of long ridges of gravel and clay with a covering of large stones. Frequently attributive, esp. in Ra moraine. ΘΚΠ the world > the earth > land > landscape > high land > rising ground or eminence > [noun] > glacial mound moraine1783 osar1842 esker1852 kame1862 sow-back1874 push moraine1890 whaleback1893 recessional moraine1897 Ra1902 Salpausselkä1923 the world > the earth > structure of the earth > structural features > deposited by water, ice, or wind > [noun] > glacial > moraine > specific Ra1902 Salpausselkä1923 1902 Geol. Mag. 4th Decade 9 319 Outside the terminal ra, that is, between the moraine and the coastline,..there is a widely spread deposit of clay. 1924 Man 24 100 All the marine clays, the fauna of which indicate the amelioration of the climate, are to be found outside the Raer. 1957 J. K. Charlesworth Quaternary Era II. xlii. 1172 The Ras, traceable as far as Stavanger, have been correlated with the double moraines observed in many fjords and fjord-valleys. 1997 Arctic & Alpine Res. 29 14/1 Kjartansson (1939) correlated the morainal ridges [of southern Iceland] with the Salpausselka end moraine complex in Finland and the Ra moraines in Norway, which had been related to a glacial advance during the Younger Dryas chronozone. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。