| 词汇 | example_english_magma-ocean |
| 释义 | magma oceancollocation in Englishmeanings of magmaand oceanThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with magma or ocean. magma noun[U] uk /ˈmæɡ.mə/ us /ˈmæɡ.mə/ hot liquid rock found just below the surface of ... See more at magma ocean noun uk /ˈəʊ.ʃən/ us /ˈoʊ.ʃən/ a very large area ... See more at ocean Examples of magma oceanThese 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. The first issue is the very existence of a terrestrial magmaocean. Such a conductive boundary layer on top of the magmaocean extended the life of the magmaocean by a few tens of millions of years. Another hypothesis is that the regions are the remnants of a basal magmaocean. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Crystallization of this magmaocean would have given rise to a mafic mantle and a plagioclase-rich crust. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This structure is believed to have resulted from the fractional crystallization of a magmaocean shortly after its formation about 4.5 billion years ago. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Core formation through a solid mantle, they conclude, is impossible; to form a core requires a magmaocean. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Ages of formation and crystallization of the lunar magmaocean have been constrained by studies of isotopes of hafnium, tungsten, samarium, and neodymium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, the giant impact hypothesis implies that a surface magmaocean would have formed following the impact. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They have been radiometrically dated as forming 4.4 billion years ago, and may represent plagioclase cumulates of the lunar magmaocean. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As crystallization of the lunar magmaocean proceeded, minerals such as olivine and pyroxene would have precipitated and sank to form the lunar mantle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Different scenarios have been proposed for the iron enrichment: iron could be leaking from the core, have accumulated over past subduction, or be remnants of a basal magmaocean. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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. Want to learn more? Go to the definition of magma Go to the definition of ocean See other collocations with magma See other collocations with ocean |
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。