an intrusive igneous formation consisting of a system of concentric ring dykes or cone sheets.
| 单词 | θ4891 |
| 释义 | the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > intrusion > ring (1) ring complex1916 an intrusive igneous formation consisting of a system of concentric ring dykes or cone sheets. |
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