Rocks are formed when magma cools.
When magma cools and solidifies underground, igneous rocks like granite and gabbro are formed. If the magma cools and solidifies on the Earth's surface, volcanic rocks like basalt and andesite are produced.
Igneous rocks like rhyolite or andesite are formed when magma undergoes crystallization above ground. These rocks cool relatively quickly, resulting in smaller mineral crystals compared to rocks formed from magma crystallizing deep underground.
Igneous rocks form as a result of cooling magma. As the magma cools and solidifies, it forms rocks such as granite, basalt, and obsidian. The size of the mineral crystals in the rock is determined by the rate of cooling.
Rocks formed by fast cooling magma are typically fine-grained and include rocks like basalt, andesite, and rhyolite. These rocks cool quickly on or near the Earth's surface, resulting in small mineral grains and a smooth texture.
Rocks are classified into two main groups based on how they are formed: igneous rocks, which are formed from cooling and solidifying magma or lava, and sedimentary rocks, which are formed from the accumulation and compression of sediments.
Magma
Intrusive igneous rocks are formed by magma. Magma can also cause the contact metamorphism of rock that it is intruded into.
No, rocks are not formed when magma erodes. Rocks are typically formed when magma cools and solidifies underground or on the Earth's surface. Erosion is the wearing away of rocks and minerals by wind, water, or ice over time.
Cools
igneous rocks
Intrusive igneous rocks are formed by the cooling of magma.
igneous rocks are formed through the cooling and solidification of magma.
Intrusive igneous rocks .
Rocks formed in volcanoes from magma.
by hot magma
Magma
Igneous rocks are formed from the cooling and solidification of magma or lava.