Mining and Geology. A vein; a line or layer of ore within a vein; a stratum or dyke of stone or rock.
| 单词 | θ4897 |
| 释义 | the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > intrusion > dike (3) riba1500 Mining and Geology. A vein; a line or layer of ore within a vein; a stratum or dyke of stone or rock. dike1802 Hence, in Geology. A mass of mineral matter, usually igneous rock, filling up a fissure in the original strata, and sometimes rising from these… ring dyke1915 a dyke that is arcuate or roughly circular in plan, formed by upwelling of magma in a conical or cylindrical fracture system. |
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