Basalt - Wikipedia
WEBBasalt ( UK: / ˈbæsɔːlt, - əlt /; [1] US: / bəˈsɔːlt, ˈbeɪsɔːlt /) [2] is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low- viscosity lava rich in magnesium and iron ( mafic lava) exposed at or very …
Basalt: Igneous Rock - Pictures, Definition, Uses & More
WEBBasalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals. It most commonly forms as an extrusive rock, such as a lava flow, but can also form in small intrusive bodies, such as an igneous dike or a thin sill. It has a composition similar to gabbro.
Basalt | Properties, Formation, Composition, Uses
WEBApr 23, 2023 · Basalt is a mafic volcanic rock that forms from the solidification of basaltic magma and exhibits a characteristic fine-grained texture. Its composition, texture, and classification provide insights into the processes involved in its formation and the geochemical characteristics of the mantle and crust.
Basalt | Definition, Properties, & Facts | Britannica
WEBApr 12, 2024 · Basalt, extrusive igneous (volcanic) rock that is low in silica content, dark in color, and comparatively rich in iron and magnesium. Basalts may be broadly classified on a chemical and petrographic basis into two main groups: the tholeiitic and the alkali basalts.
Basalt | Properties, Formation, Composition, Uses - GEOLOGY HUB
WEBBasalt is a dark-colored, dense rock composed primarily of plagioclase feldspar and pyroxene. It is the most common rock type found in oceanic crust and is an important component of the Earth's continental crust.
Basalt - Igneous rocks - Sandatlas
WEBBasalt is a major rock type that occurs in virtually every tectonic setting. Basalt is clearly the most common volcanic rock on Earth and basaltic rocks (including gabbro, diabase and their metamorphosed equivalents) are the most common rocks in the crust 2. Basalt is also common on the Moon and other rocky planets of the Solar System.
A Guide to Basalt: A Common, Fine-grained, Dark-Colored ...
WEBAug 17, 2023 · Basalt is a common and widely used, fine-grained, dark-colored mafic volcanic rock. It has mainly calcic plagioclase feldspar and augite.
What Is Basalt? - ThoughtCo
WEBFeb 2, 2019 · Basalt is the dark, heavy volcanic rock that makes up most of the world's oceanic crust. Some of it erupts on land, too, but to a first approximation, basalt is an oceanic rock. Compared to the familiar granite of the continents, basalt ("ba-SALT") is darker, denser and finer grained.
Basalt
WEBJul 29, 2023 · Basalt is an extrusive igneous rock that forms from the rapid cooling of lava on the Earth’s surface. It is closely associated with volcanic activity, often erupting from fissures and vents during volcanic eruptions.
Basalt - Simple English Wikipedia, the free encyclopedia
WEBBasalt is a type of intrusive rock meaning it forms inside of the volcano. Basalt has also formed on Earth's Moon, Mars, Venus, and even on the asteroid Vesta. The crustal portions of oceanic tectonic plates are made mostly of basalt, produced from upwelling mantle below mid-ocean ridges. Unweathered basalt is black or grey.
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