| 释义 |
louderback Geol.|ˈlaʊdəbæk|
[Named after G. D. Louderback (1874–1957), American geologist.]
A cap of old lava on a tilted fault-block.
1930W. M. Davis in Bull. Geol. Soc. Amer. XLI. 299 It seems to me highly appropriate that the lava sheets, which were thus spread unconformably on the Powell surface of the worn-down King mountains, and which now cover the back slopes of the tilted Gilbert blocks, should be called Louderbacks, after their discoverer. 1965W. D. Thornbury Regional Geomorphol. U.S. xxiv. 473/2 Some of the range have lava caps, called by Davis (1930) louderbacks. 1968R. W. Fairbridge Encycl. Geomorphol. 679/1 Since the original [lava] flow would normally have filled a valley, the louderback is usually also a form of inverted topography. |