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单词 Permo-Pennsylvanian
释义 ˌPermo-Pennsylˈvanian, a. Geol.
[f. as Permo-Carboniferous a. + Pennsylvanian n. and a.]
Belonging either to the lowest Permian or the uppermost Pennsylvanian. Also absol.
The equivalent in the U.S. of Permo-Carboniferous.
1937Bull. Amer. Assoc. Petroleum Geologists XXI. 1252 Late Pennsylvanian and Permo-Pennsylvanian. Figure 2 represents a composite of late Pennsylvanian and early Permian time.1965Ibid. XLIX. 1572/2 An early sequence of Permo-Pennsylvanian sediments accumulated in this bay.
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