“non、sequence”的英文意思_释义_用法

单词

non-sequence

释义

non-ˈsequence Geol.
[non- 1.]
An interruption in the deposition of adjacent comformable strata that was too short (in geological terms) for significant erosion to take place and consequently has to be inferred from a gap in the fossil record.
[1895S. S. Buckman in Q. Jrnl. Geol. Soc. LI. 391 Non-sequential strata, when the sequence is incomplete, but the planes of the deposits are practically parallel.]1904Ibid. LX. 349 (heading) Evidence for a non-sequence between the Keuper and Rhætic series in North-West Gloucestershire and Worcestershire.1933Ibid. LXXXIX. 163 If..the oolitic and nodular beds are at this horizon..their position immediately overlying slates with Didymograptus bifidus would indicate that they mark a considerable non-sequence.1969Bennison & Wright Geol. Hist. Brit. Isles i. 7 Naturally non-sequences are unprovable in barren unfossiliferous rocks..or in rocks so altered that fossils have failed to be preserved.

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