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单词 pseudostratum
释义

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pseudostratum
pseudostratum n.
Brit. /ˌs(j)uːdə(ʊ)ˈstrɑːtəm/
,
/ˌs(j)uːdə(ʊ)ˈstreɪtəm/
,
U.S. /ˌsudoʊˈstreɪdəm/
,
/ˌsudoʊˈstrɑdəm/
,
/ˌsudoʊˈstrædəm/
Geology a mass of rock resembling a stratum but produced by a process other than sedimentary deposition, e.g. in an igneous rock as a result of parallel fractures.
ΚΠ
1845 J. Phillips & C. G. B. Daubeny Geol. in Encycl. Metrop. VI. 766/1 The great mass of basalt..lies in a pseudostratum of most irregular thickness.
1875 Q. Jrnl. Geol. Soc. 30 137 The interesting point about the apex of Arthur's Seat is..that its pseudo-strata are inclined at precisely the same angle as the intrusive sheets of Salisbury Craigs.
1974 Abstr. Ann. Meeting Amer. Assoc. Petroleum Geologists 1 47 At least five basic types of strata and pseudostrata can be recognized in modern dune sands.
extracted from pseudo-comb. form
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更新时间:2025/1/31 1:26:05