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Short "hint"

n. - The lower layer of the crust.

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Usage examples (30)
  • This was cool becuase we looked at how upper crust interaction ie mountain building events are affected by the underlaying interaction of the crust and upper mantle - he...
  • Near the top of the mantle is a region of partially melted rock called the asthenosphere.
  • Convection currents within the mantle cause these plates to move slowly across the asthenosphere.
  • The top layer of the upper mantle, 100 to 200 kilometers below surface, is called the asthenosphere.
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