| 释义 |
melaphyre Petrol.|ˈmɛləfaɪə(r)|
[a. F. mélaphyre (Brongniart), f. Gr. µέλα-ς black + (por)-phyre porphyry.]
A species of black or dark-coloured porphyry.
1841Penny Cycl. XX. 56/2 Melaphyre (Trap porphyry). Black petrosilicious hornblende, with crystals of felspar. 1867Murchison's Siluria xiii. 332 Chocolate-coloured..melaphyres. 1879Rutley Study Rocks xiii. 260 Melaphyres possess a vitreous, or a devitrified magma which allies them more to basalt than to diabase. |