| 释义 |
gumbotil Geol.|ˈgʌmbəʊtɪl|
[f. gumbo + till n.2]
A leached grey clay, very sticky when wet and very hard when dry, found extensively in Iowa and neighbouring states.
1916G. F. Kay in Science 3 Nov. 638/1 It is now proposed that the somewhat indefinite term ‘gumbo’ be no longer used for these super-drift clays, but that the name ‘gumbotil’ be used. 1957J. K. Charlesworth Quaternary Era II. xxxvii. 967 The gumbotils have often been regarded as loesses. |