How do we differentiate Extrusive and intrusive Igneous rocks? скачать в хорошем качестве

How do we differentiate Extrusive and intrusive Igneous rocks?

#Igneous_rocks#Extrusive#Intrusive How do we differentiate Extrusive and intrusive Igneous rocks? Extrusive and intrusive rocks are two types of igneous rocks that form through the solidification of molten rock material, known as magma or lava. The main difference between these two types lies in their formation processes and the location where they cool and solidify. Extrusive Igneous Rocks: Extrusive rocks, also called volcanic rocks, are formed when magma erupts onto the Earth's surface and cools relatively quickly. This rapid cooling prevents the growth of large mineral crystals, resulting in a fine-grained or glassy texture. Examples of extrusive rocks include basalt, andesite, and rhyolite. Basalt is one of the most common extrusive rocks. It is dark in color and has a fine-grained texture. Basaltic lava flows are often associated with volcanic eruptions, such as those occurring in shield volcanoes or fissure eruptions. Andesite is another type of extrusive rock. It has an intermediate composition between basalt and rhyolite. Andesitic lava flows are commonly found in volcanic arcs and stratovolcanoes. Rhyolite is a light-colored extrusive rock with a high silica content. It is associated with explosive volcanic eruptions and can form lava flows or volcanic ash deposits. Intrusive Igneous Rocks: Intrusive rocks, also known as plutonic rocks, form when magma cools and solidifies beneath the Earth's surface. The cooling process of intrusive rocks is much slower compared to extrusive rocks, allowing for the growth of larger mineral crystals. As a result, intrusive rocks have a coarse-grained texture. Examples of intrusive rocks include granite, diorite, and gabbro. Granite is a common intrusive rock composed primarily of quartz, feldspar, and mica minerals. It has a coarse-grained texture and often exhibits a speckled appearance due to the presence of different minerals. Diorite is an intermediate intrusive rock that is similar to andesite in composition. It has a coarse-grained texture and typically consists of plagioclase feldspar and hornblende. Gabbro is a dark-colored intrusive rock composed mainly of pyroxene and plagioclase feldspar. It has a coarse-grained texture and is the intrusive equivalent of basalt. Related keyword what is the difference between intrusive and extrusive difference between extrusive and intrusive igneous rocks extrusive igneous rocks what is the difference between extrusive and intrusive igneous rocks brainly how are extrusive and intrusive rocks formed extrusive rocks what is the difference between extrusive igneous rocks and intrusive igneous rocks quizlet extrusive igneous rocks examples