earth's crust

Noun
  1. The outer layer of the Earth (synset 109282916)
    is a type of: layer - a relatively thin sheetlike expanse or region lying over or under another
    subtypes:
    • horst - a ridge of the earth's crust that has been forced upward between two faults and so is higher than the surrounding land
    • crustal plate, plate - a rigid layer of the Earth's crust that is believed to drift slowly
    has: asthenosphere - the lower layer of the crust
    is a part of: geosphere, lithosphere - the solid part of the earth consisting of the crust and outer mantle
    substance holonym:
    • sial - the granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum
    • sima - rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium
    same as: crust

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