what is the difference between granitic and basaltic magma
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Difference Between Basalt and Granite Basalt is an extrusive igneous rock, whereas granite is an intrusive ingenuous rock. Those who do not know, extrusive rocks are those formed of lava coming out of volcanoes, whereas rocks formed of magma that has yet not come out of the volcano are termed as intrusive rocks. Basalt is darker and is composed of magnesium and iron, whereas granite is lighter and is made up of feldspar and quartz. • Basalt is called mafic, while granite is called felsic. • Basalt splits along columnar planes, while granite splits along horizontal planes.
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- They are both formed by the crystallisation of magma. Basalt is formed when basic (i.e. high iron and magnesium, low silica) magma freezes above ground as a lava flow, … resulting in the very fine crystals. Granite is the crystallised form of more felsic (silica-rich) magma, which has crystallised at depth within the Earth, resulting in a large crystal size.
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What Is the Difference Between Phaneritic and Aphanitic Rocks? A hand specimen of granite with phaneritic (coarse grained) texture. Principal minerals are Potassium Feldspar, Biotite Mica, and Quartz. , mineral grains smaller than 1mm (need hand lens or microscope to see minerals). Aphanitic texture consists of small crystals that cannot be seen by the eye with or hand lens. The entire rock is made up of small crystals, which are generally less than 1/2 mm in size. This texture results from rapid cooling in volcanic or hypabyssal (shallow subsurface) environments. A hand specimen of basalt with aphanitic (fine grained) texture.
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Ask GeoMan... Basaltic crust is dark and thin and heavy, while granite is light and accumulates into continent-sized rafts which bob about like corks in this sea of basalt. When a continent runs into a piece of seafloor, it's much like a Mac truck running into a Volkswagon.
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What is the difference between Rhyolite Andesite Basalt Granite Diorite and Gabbro? Extrusive rocks range from most mafic to less mafic as such: Basalt, Andesite, Rhyolite (and are all fine-grained b/c they cooled quickly). Intrusive rocks that cool more slowly and have larger crystals range from most mafic to less mafic as such: Gabbro, Diorite, Granite.ost  supervolcanoes are fed by rhyolitic magma.   Andesitic magma is in between basaltic and rhyolitic magma, with a  moderate amount of silica. It has an intermediate density, cooling  point, and viscosity compared with other types of magma.
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What is the difference between lava and magma? Rating Newest Oldest. Best Answer: Magma is the the molten rock that is underneath the crust of the earth. The crust of the earth is actually floating on the magma underneath. Lava is the term used to describe magma when the magma has seeped through the earth's crust. For example, during a volcanic eruption.Magma has seeped through the crust and is now called lava.ating Newest Oldest. Best Answer: Magma is the the molten rock that is underneath the crust of the earth. The crust of the earth is actually floating on the magma underneath. Lava is the term used to describe magma when the magma has seeped through the earth's crust. For example, during a volcanic eruption.
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What is basalt? Rockhound. Basalt is an igneous rock that forms from the relatively rapid solidification of basaltic lavas; that is, those magmas that are relatively high in iron and magnesium, and low in silica and aluminum.These features give basalt its dark color and higher relative density when compared to silicate igneous rocks.ockhound. Basalt is an igneous rock that forms from the relatively rapid solidification of basaltic lavas; that is, those magmas that are relatively high in iron and magnesium, and low in silica and aluminum.
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- Basaltic lava, or mafic lava, is molten rock enriched in iron and magnesium and depleted in silica. Basaltic magmas are formed by exceeding the melting point of the mantle either by adding heat, changing its composition, or decreasing its pressure.
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What is the difference between magma and lava? (m) Magma is the molten material beneath Earth's crust. This material consists of rock, gases, and mineral crystals. The temperature of the magma can be as high as 5000 degrees Fahrenheit. The pressure is also very high since the magma supports the weight of Earth's crust.Lava is the molten rock that comes out of a volcano or from a fissure in Earth's surface.A fissure is a crack. The molten rock comes from the underground magma. Lava is thus magma that has broken through Earth's surface.est Answer: Magma is the molten material beneath Earth's crust. This material consists of rock, gases, and mineral crystals. The temperature of the magma can be as high as 5000 degrees Fahrenheit.
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Demonstration goals: Similarly, a rock with small crystals probably formed at or near the surface and cooled quickly. These are called extrusive rocks and have an aphanitic texture (from the Greek a- meaning not, and phanerous). And some magma cools so quickly that no crystals form; we say that these have a hyaline texture (from the Greek hyalis meaning glass). Sometimes, a rock will contain both aphanitic and phaneritic crystals in it. This means that something truly odd happened to the magma before it was erupted. Since we know that large crystals need time to grow, the magma must have spent some time deep underground.
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Basaltic Magma Eruption? Answers. Best Answer: Basalt eruptions are most prevalent in oceanic eruptions, at sea floor spreading zones and formation of island arcs. Felsic eruptions, which are typically granitic or rhyolytic, are more common in continental eruptions.The predominant eruptions are oceanic, so basaltic eruptions are more common.A theory of the evolution of a volcano maintains that eruptions of young volcanoes start out basaltic and become more and more felsic as the volcano matures. This is thought to be to magma differentiation and fractionation. Source(s):elsic eruptions, which are typically granitic or rhyolytic, are more common in continental eruptions. The predominant eruptions are oceanic, so basaltic eruptions are more common.
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Igneous Rocks Igneous rocks are formed from lava or magma. Magma is molten rock that is underground and lava is molten rock that erupts out on the surface. The two main types of igneous rocks are plutonic rocks and volcanic rocks. Plutonic rocks are formed when magma cools and solidifies underground. Volcanic rocks are formed from lava that flows on the surface of the Earth and other planets and then cools and solidifies. The texture of an igneous rock depends on the size of the crystals in the rock. This tells us if the rock is plutonic or volcanic. When magma cools underground, it cools very slowly and when lava cools above ground, it cools quickly. When magma and lava cool, mineral crystals start to form in the molten rock. Plutonic rocks, which cool slowly underground, have large crystals because the crystals had enough time to grow to a large size.
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Holy Pilgrimage â Goa Sate â ( Mahadev temple, Mahasala temple, Mahamaya Kalika temple, Mandodari temple, Mangueshi temple, Nagueshi, Shanta Durga temple, Ramnathi and Ravalnath) -1 By definition, basalt is an aphanitic igneous rock with less than 20% quartz and less than 10% feldspathoid by volume, and where at least 65% of the feldspar is in the form of plagioclase. Basalt features a glassy matrix interspersed with minerals.The average density is 3.0 gm/cm 3.y definition, basalt is an aphanitic igneous rock with less than 20% quartz and less than 10% feldspathoid by volume, and where at least 65% of the feldspar is in the form of plagioclase. Basalt features a glassy matrix interspersed with minerals.
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Gabbro The difference between the two rock types is their grain size. Basalts are extrusive igneous rocks that cool quickly and have fine-grained crystals. Gabbros are intrusive igneous rocks that cool slowly and have coarse-grained crystals.
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Igneous Rocks Igneous Rocks. Igneous rocks are formed from lava or magma. Magma is molten rock that is underground and lava is molten rock that erupts out on the surface. The two main types of igneous rocks are plutonic rocks and volcanic rocks. Plutonic rocks are formed when magma cools and solidifies underground.Volcanic rocks are formed from lava that flows on the surface of the Earth and other planets and then cools and solidifies. The texture of an igneous rock depends on the size of the crystals in the rock.This tells us if the rock is plutonic or volcanic. When magma cools underground, it cools very slowly and when lava cools above ground, it cools quickly. When magma and lava cool, mineral crystals start to form in the molten rock.Plutonic rocks, which cool slowly underground, have large crystals because the crystals had enough time to grow to a large size.hen magma cools underground, it cools very slowly and when lava cools above ground, it cools quickly. When magma and lava cool, mineral crystals start to form in the molten rock. Plutonic rocks, which cool slowly underground, have large crystals because the crystals had enough time to grow to a large size.
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- Magma is a complex high-temperature fluid substance. Temperatures of most magmas are in the range 700 °C to 1300 °C (or 1300 °F to 2400 °F), but very rare carbonatite magmas may be as cool as 600 °C, and komatiite magmas may have been as hot as 1600 °C. Most magmas are silicate mixtures.esides molten rock, magma may also contain suspended crystals, dissolved gas and sometimes gas bubbles. Magma often collects in magma chambers that may feed a volcano or solidify underground to form an intrusion.
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What Is a Basaltic Volcano? When classifying volcanoes by lava composition, basaltic volcanoes are ones in which lava is composed of mostly basaltic rock. Basalt is the most common rock in the Earth's crust. Andesite and rhyolite are other common components of lava. Continue Reading.
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Volcanic vs Plutonic Igneous Rocks: Definition and Differences Volcanic rocks are rocks formed when lava cools and solidifies on the earth's surface. Volcanic rocks are also known as 'extrusive igneous rocks' because they form from the 'extrusion,' or eruption, of lava from a volcano.his differentiation between magma and lava is important when we consider the two classifications of igneous rock. This is because plutonic rocks are rocks formed when magma cools and solidifies below the earth's surface, and volcanic rocks are rocks formed when lava cools and solidifies on the earth's surface.
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- Basaltic magma is the main product of partial melting at depth in the mantle below the ocean basins. Andesite is the common magma type of island and continental margin volcanic arcs, and rhyolite is an important magma of the continental lithosphere.
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-   Basaltic magma is low in silica and rich in iron and magnesium. It  is denser, more fluid, and hotte … r than most other types of magma.  Because of its generally low gas content, volcanic eruptions  involving it are typically non-explosive or only mildly explosive,  often resulting in rivers of red hot lava.It is less dense, more viscous, and cooler than most other types of  magma. It usually has a very high gas content, meaning that most  eruptions involving it will be highly explosive. Most  supervolcanoes are fed by rhyolitic magma.
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- INTRODUCTION. Volumetrically, most lava is of basaltic composition. Basaltic melts have overall lower gas contents and are more fluid than their andesitic-to-rhyolitic counterparts. Their higher fluidity (lower viscosity) is a product of their lower SiO 2 (silica) contents.
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- or 24 volt (12 cells). Although a battery is called a '12 volt' battery, its voltage varies from about 12.6 volts down to. 10 volts when it is discharging and can rise to 15 or 16 volts during charging. It is very. important, however, to limit the maximum battery voltage during charging otherwise the. battery will be damaged.
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- Rhyolitic lava erupts at lower temperatures (800-1000 oC) and contains more silica (> 65 wt. % SiO2) than basaltic lava. Rhyolitic lava is therefore more sluggish, moves more slowly and builds thicker lava flows than basalt. 4. Andesitic lava has a silica content intermediate between basalt and rhyolite (55 - 65 wt. % SiO2) and therefore has flow characteristics intermediate between these two lava types.
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- Layers and layers of primarily felsic or intermediate-composition magma -- magma that is relatively rich in silica, sodium, aluminum, and potassium. These crystallize to form … granitic rocks. These are the classic shapes of volcano that every school kid knows, known as stratovolcanoes or composite volcanoes.
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Ask GeoMan... These differences help define and explain how the earth works. Granite is great stuff! Not only is it my personal favorite, it is without a doubt the most common rock type on the continental land masses. Yosemite Valley in the Sierra Nevada and Mt. Rushmore are two notable examples of granitic rocks.ranite is the ultimate silicate rock. As discussed elsewhere in greater detail, on average oxygen and silicon account for 75% of the earth's crust. The remaining 25% is split among several other elements, with aluminum and potassium contributing the most to the formation of the continental granitic rocks.
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- Confidence votes 99. one lack 10 thousand. Lowest Salary geter CM in India Manik Sarkar CM of Tripura donates his CM salary (9200) and allowances to his party, which pays him 5,000 (US$91) as subsistence allowances.