Geology. A set of successive deposits or formations having some common fossil or mineral features; an assemblage of successive, usually…
| 单词 | θ5374 |
| 释义 | the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > corresponding to time unit (2) series1799 Geology. A set of successive deposits or formations having some common fossil or mineral features; an assemblage of successive, usually… group1865 Geology. In the classification of rocks and fossils. A stratigraphic unit consisting of two or more formations. |
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