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Basalt - Wikipedia
Basalt 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 near the surface of a rocky planet or moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is … See more
Basalt is composed mostly of oxides of silicon, iron, magnesium, potassium, aluminum, titanium, and calcium. Geologists See more
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Basalt is the most common volcanic rock type on Earth, making up over 90% of all volcanic rock on the … See moreThe common corrosion features of underwater volcanic basalt suggest that microbial activity may play a significant role in the chemical exchange between basaltic rocks and … See more
Basalt is used in construction (e.g. as building blocks or in the groundwork), making cobblestones (from columnar basalt) and in making statues. Heating and See more
• Basalt fan structure – Rock formation
• Basalt fiber – Structural fibres spun from melted basalt
• Bimodal volcanism – Eruption of both mafic and felsic lavas from a single volcanic centre See moreWikipedia text under CC-BY-SA license Basalt - Simple English Wikipedia, the free encyclopedia
Basalt 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 …
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Flood basalt - Wikipedia
A flood basalt (or plateau basalt ) is the result of a giant volcanic eruption or series of eruptions that covers large stretches of land or the ocean floor with basalt lava. Many flood basalts have been attributed to the onset of a hotspot reaching the surface of the Earth via a mantle plume. Flood basalt provinces such as the Deccan Traps of India are often called traps, after the Swedish word trappa (m…
Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 10 mins
List of places with columnar jointed volcanics - Wikipedia
Basalt columns seen on Porto Santo Island, Portugal. Columnar jointing of volcanic rocks exists in many places on Earth. Perhaps the most famous …
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Basalt | Properties, Formation, Composition, Uses - Geology …
See more on geologyscience.comBasalt is a widespread rock type that occurs in many parts of the world. It is associated with volcanic activity and can be found in various geologic settings, both on land and under the ocean floor. Here are some of the major occurrences and distributions of basalt globally: 1. Oceanic Basalt: The majority of basalt on Eart…- Reviews: 2
- Published: Apr 10, 2018
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Basalt: Igneous Rock - Pictures, Definition, Uses
Basalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals. It forms mainly at oceanic divergent boundaries, hotspots, and mantle plumes, and is the most abundant rock type …
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Basalt | Definition, Properties, & Facts | Britannica
Mar 8, 2025 · 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: …
Basalt: Properties, Formation, Uses, and Famous …
Explore the strength and versatility of basalt, a volcanic rock with widespread uses in construction, industrial applications, and art. Learn about its formation, types, famous locations, and how to care for basalt in this detailed guide.
basalt - Wiktionary, the free dictionary
Jan 10, 2025 · basalt (countable and uncountable, plural basalts) (mineralogy) A hard mafic igneous rock of varied mineral content; volcanic in origin, which makes up much of the Earth's oceanic crust. A type of unglazed pottery. From Late …
Basalt – Wikipedia
Basalt er ein mørk, finkorna lavabergart som hovudsakleg består av feltspat og pyroksen . Det er den mest utbreidde lavaen på jorda, og kjennest frå notida så vel som frå tidlegare jordperiodar.
A Guide to Basalt: A Common, Fine-grained, Dark …
Aug 17, 2023 · Basalt rock is fine-grained, dark-colored volcanic rock with essentially Mg-rich plagioclase and augite. It is basic or low in silica (42-52 wt. %) mafic (Mg- and Fe-rich) rock, with relatively low amounts of total alkalis (Na 2 …
What Is Basalt? - ThoughtCo
Feb 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. …
Basalt: Identification, Pictures & Info for Rockhounds
Basalt is an extrusive igneous rock composed primarily of plagioclase feldspar and large amounts of mafic minerals like pyroxene. It has an aphanitic texture, meaning its interlocking crystals …
Basalt - Wikiwand
Basalt (UK: / ˈbæsɒlt, - ɔːlt, - əlt /; US: / bəˈsɔːlt, ˈbeɪsɔːlt /) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low- viscosity lava rich in magnesium and iron …
basalt - Infoplease
Basalt is an igneous rock, i.e., one that has congealed from a molten state. Basaltic magma is derived by partial.
Basalt - New World Encyclopedia
Basalt is a common, gray to black volcanic rock. It is usually fine-grained due to rapid cooling of lava on the Earth's surface. It may be porphyritic containing larger crystals in a fine matrix, or …
Basalt - Natural Atlas
Basalt (US: , UK: ) is a 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 near the surface of a …
Basalt Properties, Composition and Formation | Earth Know
Apr 10, 2024 · Basalt is the most abundant rock on Earth’s surface. It covers the ocean and dominates oceanic islands, continental flood basalts, and oceanic plateaus. Also, it occurs in …
All About Basalt: Composition, Characteristics and Types
Basalt, a marvelous rock formed from volcanic activity, holds a significant place in the geologic landscape and human history. Its fascinating properties, wide-ranging applications, and …
Basalt - Rock Identifier
Basalt is a dark, iconic rock that forms when lava rapidly cools. Many famous geological structures, including the Giant's Causeway in the UK and the Devil’s Postpile in California, are …
Basalt — Wikipedia Republished // WIKI 2
Basalt (UK: /ˈbæsɔːlt, -əlt/; US: /bəˈsɔːlt, ˈbeɪsɔːlt/) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic …
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