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 · Earth's crust is generally divided into older, thicker continental crust and younger, denser oceanic crust. The dynamic geology of Earth's crust is informed by plate tectonics.

Dec 3, 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 …

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

Like the shell of an egg, the Earth's crust is brittle and can break. Cutaway views showing the internal structure of the Earth. Below: This view drawn to scale demonstrates that the Earth's crust literally is …

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 Earth’s crust is its lightest, most buoyant rock layer. Continental crust covers 41percent of the Earth’s surface, though a quarter of that area is under the oceans.

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 …

Jan 25, 2019 · The Earth's crust is a thin layer that plays a vital role in Earth's natural cycles. Seismic studies helped discover the Earth's crust and its boundary with the mantle, called the Moho. There …