Geology. The Mississippian period or system of rocks (see sense B. 2).
单词 | θ5458 |
释义 | the world > the earth > structure of the earth > age or period > [noun] > primary or Palaeozoic > carboniferous spec. (3) Mississippian1893 Geology. The Mississippian period or system of rocks (see sense B. 2). Pennsylvanian1902 Geology. With the. The Pennsylvanian period (see sense B. 2); the system of rocks dating from this time. Namurian1931 The Namurian series or epoch. Also with the. |
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