Get an answer for 'Compare and contrast the types of igneous rocks.' Potassium (K) 8. If the body has an exposed surface area greater than 100 km2, then it’s a batholith, otherwise it’s a stock. Favourite answer. (Intrusive = Inside) Extrusive Rock forms when lava cools and solidifies outside the Earth’s crust. Neither, Igneous rock is either intrusive or extrusive. Skechers. Igneous rocks: intrusive (plutonic) versus extrusive (volcanic) rocks formed from magma - an overview. Characteristics A body of intrusive igneous rock which crystallizes from magma cooling underneath the surface of the Earth is called a pluton.If the pluton is large, it may be called a batholith or a stock depending on the area exposed at the surface. Relevance. Please update your bookmarks accordingly. You can also go through the reserves of Igneous Rocks. - 5502329 Great globs of molten rock rise toward the surface. Intrusive, or plutonic igneous rock forms when magma is trapped deep inside the Earth. Determination of intrusive and extrusive igneous rocks. 6 Answers. Intrusive igneous rocks come from magma, forming deep underground and taking longer to cool, meaning they form larger crystals. Sodium (Na) 2 Types of Igneous Rocks Intrusive Rock forms when magma cools and solidifies inside the Earth. 1 decade ago. Extrusive igneous rocks form when magma reaches the Earth's surface a volcano and cools quickly. Answer Save. Compare Igneous Rocks and find the rock with most attractive texture! (Extrusive = Exits the Earth) Sediments are small pieces of rock that are moved by water, wind, and gravity. Get to know the difference between the two Igneous Rocks by comparing their properties, features, texture, uses and appearance. Some of the Igneous Rocks rocks are Granite, Obsidian, Basalt, Diorite, Gabbro. However, extrusive rocks form from lava at the surface of the Earth, whereas intrusive rocks form from magma underground, often relatively deep in the Earth. Thats what intrusive and extrusive is... A igneous rock. Lv 7. Extrusive igneous rocks come from lava, forming at the surface of the Earth and cooling quickly, meaning they form very small crystals. ... Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene. Examples include basalt, rhyolite, andesite, and obsidian. Compare and contrast extrusive and intrusive igneous rock.? Compare and contrast extrusive igneous rocks from intrusive igneous rocks in process of formation, cooling time, crystal size and example. A pluton is a block of intrusive igneous rock. We have moved all content for this concept to for better organization. The chemical composition of diorite is intermediate between gabbro and granite. Most extrusive (volcanic) rocks have small crystals. Extrusive rocks and intrusive rocks both form when hot molten material crystallizes. 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