Mining and Geology. An upward dislocation or shifting of a seam or stratum; a fault caused by this. (Cf. upcast, adj. 3.)
| 单词 | θ4883 |
| 释义 | the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > fault > upthrust or downcast (7) upcast1793 Mining and Geology. An upward dislocation or shifting of a seam or stratum; a fault caused by this. (Cf. upcast, adj. 3.) throw1796 Geology and Mining. A dislocation or displacement in a vein or stratum (cf. fault, n. 9a); spec. the vertical component of this. Also: the extent of… upthrow1807 Geology and Mining. An upward dislocation of a stratum or seam. downcast1810 Geology. The side of a fault that has moved downwards or appears lowered relative to the other side; (also) the amount of downward vertical… upcast dyke1810 (in mining), = upcast, n. 3. downthrow1820 Geology. The side of a fault that has moved downwards or appears lowered relative to the other side; (also) the amount of downward vertical… upthrust1942 An upthrust body of rock or the accompanying fault. |
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