Earth's crust is its thick outer shell of rock, comprising 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 that includes …

Jun 5, 2025 · From mud and clay to diamonds and coal, Earth’s crust is composed of igneous, metamorphic, and sedimentary rocks. The most abundant rocks in the crust are igneous, which are …

Dec 9, 2025 · Earth’s outermost, rigid, rocky layer is called the crust. It is composed of low-density, easily melted rocks; the continental crust is predominantly granitic rock (see granite), while …

Aug 1, 2023 · The crust is the Earth’s outermost layer and it’s where we live. It has an irregular thickness, varying from about 5 km beneath the oceans (oceanic crust) to about 30 km beneath the …

Dec 11, 2025 · Discover what lies beneath your feet in this simple guide to Earth’s Crust, Mantle, and Core. Learn how each layer works, why they matter, and how they shape earthquakes, volcanoes, …

Mar 11, 2025 · Two of the most important geologic features of our planet, that shape our oceans and continents, are Earth’s two types of crusts – oceanic and continental. Both types float on Earth’s …

Oct 27, 2012 · Understand what makes up Earth’s crust – elemental percentages, dominant rock types, and how crust composition varies globally.

There are two kinds of crust: continental crust, and ocean crust. Continental crust is thicker, and predominantly felsic in composition, meaning that it contains minerals that are richer in silica. The …

Apr 9, 2018 · Crust: The Earth’s crust is primarily composed of silicate minerals, including quartz, feldspar, mica, and various types of rock. Silicon and oxygen are the most abundant elements in the …

This layered structure can be compared to that of a boiled egg. The crust, the outermost layer, is rigid and very thin compared with the other two. Beneath the oceans, the crust varies little in thickness, …