Study with Quizlet and memorise flashcards containing terms like does basalt cool slowly or quickly?, does basalt have small or large crystals?, where does magma cool to form basalt? and others.
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Study with Quizlet and memorise flashcards containing terms like What type of rock is basalt, What are the crystals like in basalt, How is basalt formed? and others.
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Basalt 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 …
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If an explosive charge is set off at the surface of the basalt, it generates a seismic wave that is reflected back out at the Moho. If the speed of this wave in basalt is 6.50 k m / s 6.50 mat{~km} / mat{s} 6.50 km / s and the two-way travel time is 1.85 s 1.85 mat{~s} 1.85 s, what is the thickness of this oceanic crust?
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As basaltic magma cools and olivine and some pyroxene crystallize, the remaining melt changes in composition. These minerals primarily take out magnesium and iron, leaving behind a melt that's richer in silica, aluminum, calcium, sodium, and potassium.This shift makes the remaining melt more felsic, meaning it can eventually form minerals like plagioclase feldspar, amphibole, …
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Basalt is a type of volcanic rock that is formed from the solidification of molten lava. It is an igneous rock, meaning it is formed through the cooling and solidification of magma or …
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The Deccan Plateau is an enormous flood basalt plateau located in India. It encompasses nearly half a million square kilometers with an elevation that ranges between 100 and 1,000 meters. This plateau is situated in the Deccan Province and it represents …
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Seamounts: A) are a special type of oceanic trench. B) are volcanoes that form on the ocean floor. C) form only in the Pacific Ocean basin. D) are submarine canyons found near Australia.
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Study with Quizlet and memorize flashcards containing terms like Where would you find Basalt, What texture is Basalt, What colour is Basalt and more. ...
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The oceanic plateau is a seafloor feature resembling flood basalt provinces the most. These features appear as flat elevated terrain on the ocean floor and remain as oceanic terranes similar to continental plateaus.
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Base your answer on the information below. Wollastonite is a calcium silicate mineral with the chemical formula. C a S i O 3 CaSiO_3 C a S i O 3 . It forms when impure limestone or other precipitate rocks are subjected to high temperature and pressure, often in zones of …
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basalt is a fine grained rock mostly black or dark grey. it has small crystals.
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The greater the gas pressure from within a volcano the greater the explosion.
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Basalt rock can be found in the Giants Causeway in Ireland. About us. About Quizlet; Advertise with us; Get the app; For Students. Flashcards; Test; Learn; Solutions; Q-Chat: your AI tutor
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Basalt lava uprises from the deep part of the mantle, and on the surface, it most often appears on mid-ocean ridges and island arcs formed above the hot spot by mantle plume. A better-known example of such an arch is Hawaii, which is completely composed of basalt rocks.
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On this cross-sectional view of a deep-ocean basin, label the following features: a seamount, a guyot, a volcanic island, an oceanic plateau, and an abyssal plain.
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Basalt is usually located in the oceanic crust, whereas andesite builds volcanic mountains. As for density - basalt is a bit denser than andesite. Basalt consists of pyroxene, plagioclase, and olivine minerals, whereas andesite consists of garnet, feldspar, and hornblende.
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Study with Quizlet and memorize flashcards containing terms like What is the tectonic environment of basalt?, What is the tectonic environment of rhyolite?, What is the tectonic environment of andesite? and more.
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What is basalt? A) any substance that evaporates easily and is a gas,liquid,or ice on Earth B) a type of rock that makes relatively low-viscosity lava C) a type of metal that tends to create …
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The most common magmatic rocks are granite and basalt. The first represents 95% of plutonic rocks and the second 90% of volcanic rocks. Most granites are formed from the following minerals: quartz, biotite, orthose, hornblende, magnetite, garnet, zircon and apatite.
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Study with Quizlet and memorize flashcards containing terms like This 2004 tsunami was caused by:, when a tsunami approaches a coastline:, When the tsunami waves reached Sri Lanka: and more. ... Is the basalt dike younger or older than sandstone 1? 2. Is the basalt dike younger or older than the basalt flow? 3. Is fault F1 younger or older than ...
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Find step-by-step solutions and your answer to the following textbook question: Abyssal plains are very flat because _____. A. basalt volcanos on the seafloor produce little terrain B. they are not really flat; it is just that there is no data so they are shown as flat C. sediments accumulate to cover the seafloor topography D. they have flat faults, the form flat, planar topography.
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Learn what is basalt? with free interactive flashcards. Choose from 5,000 different sets of what is basalt? flashcards on Quizlet.
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Basalt is an igneous rock type which is full of various crystals of other minerals. Some of the most common minerals found in basalt are olivine, feldspar, pyroxene, and quartz. There can also be many more different minerals as a part of the basalt structure.
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If a basalt body cuts across a fault, we can conclude that the basalt body is younger than the fault because the intrusion of the basalt occurred after the fault formation. The basalt magma intruded into the rocks, cutting across the fault plane and solidifying later than the faulting event .
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Study with Quizlet and memorize flashcards containing terms like what types of crystals are in basalt, what type of texture does basalt have, what type of colour does basalt have and more.
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In general, basalt is denser than granite. Granite normally has a density of between 2.6 2.6 2.6 and 2.7 g / c m 3 pu{2.7 g/cm3} 2.7 g / c m 3, but basalt normally has a density that ranges from 2.8 2.8 2.8 to 3.0 g / c m 3 pu{3.0 g/cm3} 3.0 g / c m 3. The formation and makeup of these rocks explain the significance of this divergence.
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Find step-by-step Earth science solutions and the answer to the textbook question Astronauts have observed the igneous rock basalt that covers large areas of the moon. What does this tell us about the history of the moon? (1) Earth and the moon are the same age. (2) Weathering and erosion are active on the moon. (3) Parts of the moon were once hot and molten.
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The basalt plateau that extends across most of southern India is known as the Deccan Plateau. It is located between the Western Ghats and the Eastern Ghats, with an elevation that goes between 100 and 1,000 meters.
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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 …
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