Earth's crust

E495143

Earth's crust is the planet's thin, outermost solid layer composed of continental and oceanic plates that forms the surface on which we live and where geological processes like mountain building and volcanism occur.

All labels observed (3)

Label Occurrences
Earth crust 1
Earth's crust canonical 1
EarthsCrust 1

How this entity was disambiguated

Statements (51)

Predicate Object
instanceOf geological layer ⓘ
outer shell of Earth ⓘ
averageDensity about 2.7 to 3.0 grams per cubic centimeter ⓘ
averageThickness about 30 kilometers ⓘ
composition igneous rocks ⓘ
metamorphic rocks ⓘ
sedimentary rocks ⓘ
silicate minerals ⓘ
solid rock ⓘ
continentalCrustAgeRange up to about 4 billion years ⓘ
continentalCrustAverageThickness about 35 to 40 kilometers ⓘ
continentalCrustMaximumThickness about 70 kilometers beneath major mountain ranges ⓘ
densityTrend oceanic crust is denser than continental crust ⓘ
forms Earth's solid surface ⓘ
hasPart continental crust ⓘ
oceanic crust ⓘ
innerBoundary Mohorovičić discontinuity ⓘ
interactsWith tectonic plates ⓘ
isDividedInto tectonic plates ⓘ
oceanicCrustAgeRange 0 to about 200 million years ⓘ
oceanicCrustAverageThickness about 7 kilometers ⓘ
olderComponent continental crust ⓘ
outerBoundary Earth's surface ⓘ
overlies Earth's mantle ⓘ
partOf Earth ⓘ
process continental drift ⓘ
earthquakes ⓘ
mountain building ⓘ
plate tectonics ⓘ
volcanism ⓘ
richIn aluminum ⓘ
calcium ⓘ
iron ⓘ
magnesium ⓘ
oxygen ⓘ
potassium ⓘ
silicon ⓘ
sodium ⓘ
role contains most accessible mineral resources ⓘ
hosts most of Earth's biosphere ⓘ
stores significant amounts of carbon in rocks and sediments ⓘ
separatedFrom Earth's mantle by the Mohorovičić discontinuity ⓘ
studiedBy geology ⓘ
seismology ⓘ
supports continents ⓘ
ocean basins ⓘ
temperatureRange about ambient surface temperature to roughly 400–1000 °C at its base ⓘ
thicknessRange about 5 to 70 kilometers ⓘ
underlies continents ⓘ
oceans ⓘ
youngerComponent oceanic crust ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Baltica → partOf → Earth's crust ⓘ
Stones → partOf → EarthsCrust ⓘ
linked to: Earth's crust
African continental shelf → partOf → Earth crust ⓘ
linked to: Earth's crust