释义 |
tuffaceous, a.|tʌˈfeɪʃəs| [f. tuff n. + -aceous.] ‘Having the properties of or composed of volcanic tuff’ (Cent. Dict. Suppl. 1909); distinguished from tufaceous in the specific sense.
1882Geikie Textbk. Geol. ii. ii. vi. 164 Tuffs passing gradually into shale, limestone, sandstone, &c. The intermediate varieties have been called ashy shale, tuffaceous shale, or shaley tuff, &c. |