Crust (geology) - Wikipedia
In geology, the crust is the outermost solid shell of a planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case …
Earth's crust - Wikipedia
Earth's crust is its thick outer shell of rock, referring to less than one percent of the planet's radius and volume. It is the top component of the lithosphere, a solidified division of Earth 's layers …
The Earth's Crust: Everything You Need to Know - ThoughtCo
2019年1月25日 · The crust is a thin but important zone where dry, hot rock from the deep Earth reacts with the water and oxygen of the surface, making new kinds of minerals and rocks. It's …
Crust - Education | National Geographic Society
2024年4月25日 · “ Crust ” describes the outermost shell of a terrestrial planet. Our planet ’s thin, 40-kilometer (25-mile) deep crust—just 1 percent of Earth ’s mass—contains all known life in …
Earth's Layers, Structure of Earth Interior: Core, Mantle, Crust
2023年12月8日 · The Earth’s crust is the outermost layer and the one we interact with directly. It varies in thickness, with oceanic crust being thinner (about 4-7 miles or 6-11 kilometers) and …
3.1: Earth’s Layers- Crust, Mantle, and Core - Geosciences ...
2024年8月22日 · The Earth’s outermost layer—its crust—is rocky and rigid. There are two kinds of crust: continental crust , and ocean crust . Continental crust is thicker, and predominantly …
Continental crust | Composition, Density, & Definition ...
Continental crust, the outermost layer of Earth’s lithosphere that makes up the planet’s continents and continental shelves and is formed near subduction zones at plate boundaries between …