| 词汇 | oceanic-crust |
| 释义 | oceanic crust noun[ C, usually singular ] geology specializeduk /ˌəʊ.ʃi ˈæn.ɪk ˈkrʌst/ us /ˌoʊ.ʃi ˈæn.ɪk ˈkrʌst/ the part of the outer rocky layer of the earth that is under the oceans and is thinner than the layer under the land大洋地壳 The Earth & outer space - general words ablate alluvium anti-gravity atmosphere atmospherically auroral geo- geocentric horizon hydrosphere infinite ionospheric lithosphere lithospheric macrocosm mesosphere mesospheric the Big Bang underground zero gravity Examples of oceanic crustoceanic crust This, combined with the young age of the oceaniccrust, explains why few craters are likely to be found in the oceans. The detached amphibolitized oceaniccrust may then return to shallow depths as a result of its positive buoyancy against the denser surrounding mantle. The basement is thought to be oceaniccrust, generated either at a mid-ocean ridge or by back-arc spreading dependent on the favoured model. The progressive contraction of oceaniccrust caused the uplift of previously rifted continental margin and platforms and the formation of foredeep flysch basins. Recycling of hydrated basalt of the oceaniccrust and growth of early continents. Fortunately, some portions of oceaniccrust are occasionally preserved as ophiolites. The progressive contraction of oceaniccrust caused the uplift of previously rifted continental margin and platforms, and formation of foredeep flysch basins. The majority of the oceaniccrust formed today is created at intermediate- to fast-spreading ocean ridges. This book contains a wealth of new data and new thinking on the whole problem of ophiolites and oceaniccrust and upper mantle. The students, whilst acknowledging excellent texts in igneous petrology or igneous geochemistry, felt the lack of a multi-disciplinary text specifically covering the generation and evolution of the oceaniccrust. Bioalteration of basaltic glass in the oceaniccrust. These pressures are equivalent to 57-46 km depth beneath an oceaniccrust-mantle hanging-wall, a much greater thickness than can be accounted for by the thickness of the ophiolite. Partial melting of subducting oceaniccrust. The evidence of hornblende crystallization implies that the ultramafites and associated gabbros were emplaced at depth in a crust considerably thicker than typical oceaniccrust as represented by ophiolites. The oceaniccrust as a bioreactor. See all examples of oceanic crust These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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