Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from magma erupted from a volcano. In other words, it differs from other igneous rock by being of volcanic origin. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constit...
Rock formed as a direct result of a volcano, the solidifying of magm). See extrusive rock.
rock the originated as an emission from or as part of a volcano
[n] - extrusive igneous rock solidified near or on the surface of the Earth
See under soil type. Floor type Next to climate and grape variety, one of the most important factors influencing the quality of wine. The different soil types have developed over millions of years through physical and chemical weathering of rocks and through humification of organic matter. During physical weathering, natural forces such as win...
Rock formed by eruption onto a planet's surface.
noun extrusive igneous rock solidified near or on the surface of the Earth
Another name for extrusive rock, igneous rock formed on the Earth's surface