mantle rock

noun Physical Geography.
the layer of disintegrated and decomposed rock fragments, including soil, just above the solid rock of the earth's crust; regolith.

Origin:
1890–95

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To mantle rock
Explore Dictionary.com
Previous Definition: mantle radiotherapy
Next Definition: mantle tree
Words Near: mantle rock
More from Thesaurus.com
Synonyms and Antonyms for mantle rock
More from Reference.com
Search for articles containing mantle rock
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Example sentences
Tectonic plates slid and were subducted, mantle rock melted and pooled
  underground, volcanoes erupted.
It reveals the chemical composition of the molten mantle rock that formed the
  seafloor in that region.
Hot water forced through tiny fractures and pores in the mantle rock dissolves
  some silica from the rock into it.
Magma is hot molten rock containing chemical elements from melted mantle rock
  and oceanic plate.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature