This article discusses how rocks are formed. There are also articles on physical rock formations, rock layerings (strata), and the formal naming of geologic formations.

Dec 29, 2025 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form …

Aug 22, 2023 · The rock cycle is the natural, continuous process that forms, breaks down, and reforms rock through geological, chemical, and physical processes. Through the cycle, rocks convert …

There are three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks are formed from the cooling and solidification of magma or lava. Sedimentary rocks are formed from the …

Jun 4, 2025 · The rock cycle is a series of processes that create and transform the types of rocks in Earth’s crust.

Dec 3, 2009 · As a terrestrial planet, Earth is divided into layers based on their chemical and rheological properties. And whereas its interior region - the inner and outer core - are mostly made up of iron and...

Jun 16, 2019 · Beneath these endless transformations lies one of Earth’s most elegant systems — the rock cycle. This cycle describes how rocks continuously form, change, break down, and re-form …

Mar 11, 2025 · Rocks are the foundation of Earth’s crust, formed over millions of years through natural processes. Understanding how rocks are made can help us appreciate their importance in everyday …

Oct 27, 2023 · There are three main processes that lead to the formation of rocks: the cooling and solidification of magma, the deposition of sediment, and extreme temperatures and pressures. …

The rock cycle describes the processes through which the three main rock types (igneous, metamorphic, and sedimentary) transform from one type into another.