• Crust (geology) - Wikipedia

    en.wikipedia.org/wiki/Crust_%28geology%29 In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase. The crusts of Earth, Mercury, Venus, Mars, Io, the Moon and other planetary bodies formed via igneous processes, and were later modified by erosion, impact cratering, volcanism, and sedimentation. Most terrestrial planets have fair
  • Crust (geology) - ScienceDaily

    www.sciencedaily.com/terms/crust_(geology).htm In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle ...
  • Crust (geology) - definition of Crust (geology) by The ...

    www.thefreedictionary.com/Crust+(geology) Noun. 1. Earth's crust - the outer layer of the Earth. crust. layer - a relatively thin sheetlike expanse or region lying over or under another. asthenosphere - the lower layer of the crust. horst - a ridge of the earth's crust that has been forced upward between two faults and so is higher than the surrounding land.
  • Crust (geology) - New World Encyclopedia

    www.newworldencyclopedia.org/entry/Crust_(geology) Oceanic crust: 0–20 Ma 20–65 Ma >65 Ma. In geology, the term crust is used for the outermost solid shell of a planet or moon. It is chemically and mechanically different from underlying material.
  • Crust (geology) | Gravity Wiki | Fandom

    gravity.wikia.org/wiki/Crust_(geology) Earth's crust Edit. Earth cutaway from core to exosphere. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.
  • Crust (geology) : definition of Crust (geology) and ...

    dictionary.sensagent.com/Crust%20(geology)/en-en The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust. The boundary between the crust and mantle is conventionally placed at the Mohorovičić discontinuity, a boundary defined by a contrast in seismic velocity.
  • Earth's crust - Simple English Wikipedia, the free ...

    simple.wikipedia.org/wiki/Crust_(geology) The Earth's crust is the Earth 's hard outer layer. It is less than 1% of Earth's volume. The crust is made up of different types of rocks: igneous, metamorphic, and sedimentary rocks . Below the crust is the mantle. The crust and the upper mantle make up the lithosphere. The lithosphere is broken up into tectonic plates that can move.
  • Crust | Definition of Crust at Dictionary.com

    www.dictionary.com/browse/crust the pastry covering the outside of a pie or other dish. a piece of stale bread. any more or less hard external covering or coating: a crust of snow. Geology. the outer layer of the earth, about 22 miles (35 km) deep under the continents ( continental crust ) and 6 miles (10 km) deep under the oceans ( oceanic crust ).
  • The Earth's Crust: Everything You Need to Know

    www.thoughtco.com/all-about-the-earths-crust-1441114 The Earth's crust is an extremely thin layer of rock that makes up the outermost solid shell of our planet. In relative terms, it's thickness is like that of the skin of an apple. It amounts to less than half of 1 percent of the planet's total mass but plays a vital role in most of Earth's natural cycles.
  • Sialic crust | geology | Britannica

    www.britannica.com/science/sialic-crust Other articles where Sialic crust is discussed: Australia: The Precambrian: …the oldest known rocks are sialic crust (i.e., composed of rocks rich in silica and alumina) that developed in the Narryer Gneiss Complex between 4.3 and 3.7 billion years ago. The older end of that time span is provided by detrital zircon grains found in younger metasedimentary rock (metamorphosed sedimentary…