释义 |
lower mantle ThesaurusNoun | 1. | lower mantle - the deeper part of the mantlelayer - a relatively thin sheetlike expanse or region lying over or under anothermantle - the layer of the earth between the crust and the core |
lower mantle
lower mantle[′lō·ər mant·əl] (geology) The portion of the mantle below a depth of about 600 miles (1000 kilometers). Also known as inner mantle; mesosphere; pallasite shell. lower mantle Related to lower mantle: crust, upper mantle, Oceanic crust, Outer core, Gutenberg DiscontinuityWords related to lower mantlenoun the deeper part of the mantleRelated Words |