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peridotite is quizlet

Peridotite definition is - any of a group of granular igneous rocks composed of ferromagnesian minerals and especially olivine. How does decompression melting occur? Intrusive: formed below ground, e.g: Granite Extrusive: formed above ground, e.g: Basalt Give an example of a coarse and a fine grained igneous rock? Which of the following minerals crystallize early in Bowen's reaction series? 5 out of 5 stars (153) 153 reviews $ 17.80. The sequence is capped by dikes and volcanic rocks (pillow basalts that erupted on the ocean floor). This reduction in pressure allows the hot material to melt into a less compressed liquid phase. Why are lava flows typically finer-grained than intrusive igneous rocks? Peridotite, a coarse-grained, dark-coloured, heavy, intrusive igneous rock that contains at least 10 percent olivine, other iron- and magnesia-rich minerals (generally pyroxenes), and not more than 10 percent feldspar. Ocean crust (and mantle) layers. Chapter 3 Learn with flashcards, games, and more — for free. As a proper noun earth is our planet, third out from the sun; see main entry earth. Peridotite is an igneous type of rock that is composed primarily of olivine. List an example for each? Know all about Peridotite, What is Peridotite, its composition, … What is the crystal system of Clinopyroxenes? Basement Rocks. Which of the following rocks is composed mainly of ferromagnesian minerals? An igneous rock with a very low silica content and rich in minerals such as hypersthene, augite, and olivine. 4- Peridotite- not usually subdivided, though there is also regular and layered peridotite. True: False: 25. When hot, solid mantle rock ascends, it moves to areas of lower pressure. G Gabbro. The peridotite is overlain by dunite (an intrusive igneous rock made mostly of the mineral olivine) that grades upward to gabbro (an intrusive igneous rock made mostly of plagioclase and clinopyroxene - augite). What is the crystal systems of orthopyroxenes? The geothermal gradient is the increase in temperature with depth under the Earth's surface. Examples include basalt, rhyolite, andesite, and obsidian. Weldability of various aluminium alloys. section 3.2 igneous rocks quizlet, Start studying Earth Science Chapter 3 Section 2: Igneous Rocks. The peridotite is deformed. The melting curve of peridotite is consistently higher than the geothermal gradient. Obviously, equation applies to the individual peridotite suites as well as the entire data set (large symbols): ol forms (d>0) whereas opx, cpx and spinel melt (a, b and c<0) during melting, except for the A II FZ E-Wall suite, which shows cpx melting more extensively than opx, although with large errors. Melting begins when upwelling mantle intersects the peridotites solidus . Lherzolite: It is a peridotite composed primarily of olivine with significant amounts of orthopyroxene and clinopyroxene. Kimberlite sometimes contains diamonds. True: False: 24. There are a variety of Peridotite Uses and the Peridotite Reserves are found in many countries around the world. Extrusive igneous rocks include pumice, basalt, andesite, and rhyolite. Peridotite is the principal rock type in the Mantle. Which of the following pairs of igneous rocks exhibit aphanitic texture? Peridotite is a dark-colored igneous rock consisting mostly of olivine and pyroxene. peridotite. With decreasing pressure above the solidus, extent of melting increases. Scientists know that the mantle is extremely hot because of the heat flowing outward from it and because of its physical properties. Start studying Peridotite composition. For many years, marine geologists based their understanding of the structure and composition of the ocean crust and mantle … A Andesite. Of those below, which igneous rock or magma has the lowest silica (SiO2) content? Olivine also is the main mineral in peridotite rock, which is considered to be a robust model of the interior of the Earth’s composition. Peridotite is translucent to opaque in nature. A classification diagram of ultramafic rocks. Na Wiatr to bezpieczeństwo i profesjonalizm - zapraszamy tel. Peridotite is the plutonic rock beneath the Earth's crust located in the upper part of the mantle. Named for a mountain range in South America, which rock forms from volcanic activity there? Composition. What are the three important polymorphs of Serpentine? A) 1 to 2 B) 10 to 15 C) 15 to 20 D) 30 to 50 Ans: C Section: 4-2: How Do Magmas Form? Learn vocabulary, terms, and more with flashcards, games, and other study tools. Luster of Peridotite is the interaction of light with the surface of Peridotite. They are further divided into subtypes. Peridotite The P-wave shadow zone is largely the result of... Refraction of P waves crossing the mantle-core boundary. Temperatures remain high as lowered pressures decrease melting temperatures. Igneous Rock Index. Triplets generally consist … Those that contai… Peridotite is an igneous rock, hard and rough, made up mostly of the minerals olivine, pyroxene, and amphibole. They are quickly altered by hydrothermal solutions and weathering. Peridotite is similar to olivine, which is the most abundant mineral on this layer. Which one of the following rocks is an ultramafic? Which of the following are used for studying rocks with a polarizing or petrographic microscope? Shown in the photo is a specimen of peridotite. These rocks are also known as ultrabasic rocks. rhyolite: peridotite: basalt: diorite: gabbro: 23. non examples of melting, Economics Example of cost analysis. Igneous Rocks Flashcards Quizlet. B Which level indicates the zone where no direct P-waves are received? Intrusive igneous rocks include granite, diorite, gabbro, and peridotite. Most extrusive (volcanic) rocks have small crystals. Compared to arc welding. Luster of Peridotite is shiny and its fracture is irregular. It is high in magnesium (Mg 2+), reflecting the high proportions of magnesium-rich olivine, with appreciable iron. peridotite. Typically, _____ volume percent partial melting of upper-mantle peridotite occurs to generate basaltic magmas beneath mid-ocean ridges. Accessory minerals of the spinel group are commonly present. These samples have been chosen to repre-sent and encompass the compositional spectrum seen in peridotite xenoliths 16 . Match each of the following questions with the appropriate letter. Granite. This type of igneous rock is named for peridot, the gemstone variety of olivine. Peridotite is the source rock of basalt. It occurs in four main geologic environments: (1) interlayered with iron-, A general term for a coarse-grained plutonic rock composed chiefly of olivine with or without other mafic minerals such as pyroxenes, amphiboles, or micas, and containing little or no feldspar. Peridotite is a dense, coarse-grained igneous rock consisting mostly of the silicate minerals olivine and pyroxene. Why would a plume of solid silicate rock rising slowly from deep in the mantle begin melting as it neared the base of the lithosphere? In architecture, post and lintel (also called prop and lintel or a trabeated system) is a building system where strong horizontal elements are held up by strong vertical elements with large spaces between them.This is usually used to hold up a roof, creating a largely open space beneath, for whatever use the building is designed. Which term describes the changing of the composition of magma by incorporating surrounding host rock? Which term describes a texture of igneous rocks that crystallized over a single, long period? Heat flows in two different ways within the Earth: Conduction: Heat is transferred through rapid collisions of atoms, which can only happen if the material is solid. A lithosphere (Ancient Greek: λίθος [lithos] for "rocky", and σφαίρα [sphaira] for "sphere") is the rigid, outermost shell of a terrestrial-type planet or natural satellite.On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater. As nouns the difference between peridotite and pyroxenite is that peridotite is (geology|mineralogy) a rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the earth's mantle while pyroxenite is (geology) a heavy, dark igneous rock consisting mostly of pyroxene minerals with smaller amounts of olivine and hornblende. Peridotite Formation. Peridotite (per-RID-a-tite) is very low in silicon and high in iron and magnesium, a combination called ultramafic. The streak of Peridotite is white whereas its fracture is irregular. Peridotite is abundant on Earth and has a number of uses. peridotite A coarse-grained ultramafic intrusive igneous rock composed of olivine with small amounts of pyroxene and amphibole. Obsidian. Figure 10. Examples of aphanitic igneous rock include basalt andesite and rhyolite Glassy or vitreous textures occur during some volcanic eruptions when the lava is quenched so rapidly that crystallization cannot occur The result is a natural amorphous glass with few or no crystals Examples... Know More . There are multiple occurrences within the peridotite package where olivine cumulate is absent and the rock is a coarse pyroxenite. Which of the following is a factor that does not affect the generation of magma? As the rock heats, decompresses, or is infused with water, the minerals with the lowest melting point (more felsic) melt first and begin to move away from the source rock, so a magma is always somewhat more felsic than its source. Peridotite is an igneous rock, hard and rough, made up mostly of the minerals olivine, pyroxene, and amphibole. 1/23/2017 Igneous Rocks Flashcards | Quizlet 1/5 25 terms LieselMorgan Igneous Rocks What is the difference between intrusive and extrusive igneous rocks? The sequence is capped by dikes and volcanic rocks (pillow basalts that erupted on the ocean floor). The amount of melting is limited by the heat available since the heat of fusion is large. In a porphyritic volcanic rock, which mineral grains are the last to crystallize? Examples include: peridotite, kimberlite, lamprophyre, lamproite, dunite, and komatiite. 41 42. P Peridotite The Earth's core is principally composed of iron and nickel, and it is divided into a liquid outer core and a … Extrusive igneous rocks form when magma reaches the Earth's surface a volcano and cools quickly. What term describes the sizes, shapes, and arrangements of mineral grains in an igneous rock? Figure modified from Brown and Mussett (1993) and taken from my Marine Geology & Geophysics I course notes. Mineral resources information, along with the geologic, geochemical, and geophysical information needed to understand and assess mineral resource potential. Only 1 available and it's in 4 people's carts. Non-heat-treatable Mostly non-weldable. Peridotite is a dense, coarse-grained igneous rock consisting mostly of the minerals olivine and pyroxene.Peridotites is ultramafic, as the rock contains less than 45% silica. Which volcanic rock is extremely vesicular and glassy? Streak of Peridotite is white while its cleavage is imperfect. What is the geothermal gradient, and how does it relate to the melting curve of peridotite? Which texture listed below would be most unlikely to occur in an extrusive igneous rock? GEOL Ch. 1/23/2017 Igneous Rocks Flashcards | Quizlet 1/5 25 terms LieselMorgan Igneous Rocks What is the difference between intrusive and extrusive igneous rocks? Which of the following rocks has the same mineral composition as andesite? Quizlet flashcards, activities and games help you improve your grades. Peridotite is very high in magnesium and iron and low in silicon. Note that neither peridotite nor pyroxenite are single rock types. D Diorite. Bowen demonstrated in his experiments that minerals crystallize from magma in a systematic fashion. The dominant rock in … Heat Flow. Click HERE to order a unique plagiarism free paper done by professional writers and delivered before your deadline In the dynamic world we currently live in, it’s becoming increasingly difficult for students to balance academics, co-curricular activities and entertainment among others. peridotite: diorite: 22. The researchers took olivine and added melt (also known as basalt) to mimic how a new plate is created at a mid-ocean ridge. Streak is the color of rock when it is crushed or powdered. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The melting curve of It is coarse grained, dark-colored, and ultramafic, which means it has very low silica content compared to other igneous rocks though is rich in minerals. Coleman (1981). What is the dominant lava erupted from volcanoes on Hawaii and Iceland. Which of the following describes an ophiolite suite, beginning at the base? A __________ is an open cavity in a volcanic rock that was filled by a gas bubble when the lava was still mainly liquid. Organizujemy rejsy, kursy żeglarskie i motorowodne. Click on the figure to view larger. The strength of Peridotite is 107.55 N/mm 2. As nouns the difference between peridotite and peridot is that peridotite is (geology|mineralogy) a rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the earth's mantle while peridot is a … As a verb earth is (british) to connect electrically to the earth . Basaltic magma forms when peridotite is partially melted. The correct answer is: Rhyolite Which of the following rocks below is a glassy rock? A Peridotite, which is composed of 100% Olivine, is called a/an? It is high in magnesium, reflecting the high proportions of magnesium-rich olivine, with appreciable iron. XY(Si,Al)2O6, where X is calcium, sodium, iron+2 or magnesium, Y is chromium, aluminium, iron+3, magnesium. The heat generated in the joint area is typically about 80-90% of the melting temperature. Chapter 3: Igneous Rocks study guide by Haley_Unzen includes 24 questions covering vocabulary, terms and more. The intrusive equivalent of the igneous rock basalt is gabbro. Gabbro, any of several medium- or coarse-grained rocks that consist primarily of plagioclase feldspar and pyroxene.Essentially, gabbro is the intrusive (plutonic) equivalent of basalt, but whereas basalt is often remarkably homogeneous in mineralogy and composition, gabbros are exceedingly variable.Gabbros are found widely on the Earth and on the Moon as well. A peridotite is an ultramafic rock containing more than 40% olivine (Mg2SiO4). Ultramafic Rock. 4 study guide by nborozco includes 29 questions covering vocabulary, terms and more. These include lherzolite, harzburgite, dunite, wehrlite, and kimberlite (see photos). Fractional melting: Mantle rocks like peridotite consist of several different minerals (mostly olivine and pyroxene), each with its own melting point. The minerals that compose it are generally high-temperature minerals that are unstable at Earths surface. Peridotite is a rock type that is more representative of Earths mantle than of the crust. Over 90% olivine, minor amounts of CPX, chromite, garnet (pyrope) and magnetite. Peridotite. +48 609 070 517 Which of the following igneous rocks has a pyroclastic texture, meaning it was formed from a glowing avalanche? Highly variable. It is a silicate containing varying proportions of magnesium, iron, and other elements. Most of them have an obvious green color, attributed to their olivine content. Peridotite is ultramafic, as the rock contains less than 45% silica. olivine stone benefits, Doublets are made by combining a crown, or upper part, which is a thin slice of either the true stone or some inferior but hard gem, with a lower part of the true stone, a substitute stone, colored glass, or colored paste. Kimberlite: It is a peridotite that is composed of at least 35% olivine with significant amounts of other minerals that might include phlogopite, pyroxenes, carbonates, serpentine, diopside, monticellite, and garnet. Learn vocabulary, terms, and more with flashcards, games, and other study tools. It is coarse grained, dark-colored, and ultramafic, which means it has very low silica content compared to other igneous rocks though is rich in minerals. Luster of Peridotite … Peridotite has a coarse grain and may contain small amounts of other elements, such as spinel, chromite and plagioclase and amphibole. Granite. The two peridotite xenoliths come from basanitic lavas from SE Australia and have been the subject of previous geochemical and isotopic investigations wx13–15 . Intrusive: formed below ground, e.g: Granite Extrusive: formed above ground, e.g: Basalt Give an example of a coarse and a fine grained igneous rock? Start studying Earth's Mantle. Peridotite is rarely found at Earth’s surface. Select one: a. Diorite b. Rhyolite c. Peridotite d. Basalt e. B Basalt. What type of igneous rock consists of very coarse crystals? Peridotite definition: a dark coarse-grained ultrabasic plutonic igneous rock consisting principally of olivine | Meaning, pronunciation, translations and examples From shop SciArtImages. 58. Because the extrusive magma cools quickly and mineral grains do not have time to grow. The correct answer is: Peridotite Which of the following rocks below is a felsic extrusive igneous rock? Which level indicates the P-wave shadow zone? The peridotite is overlain by dunite (an intrusive igneous rock made mostly of the mineral olivine) that grades upward to gabbro (an intrusive igneous rock made mostly of plagioclase and clinopyroxene - augite). It is an important rock type because the Earth’s mantle is predominantly composed of it. What ultramafic rock is thought to be common in Earth's mantle but rare in the crust? As nouns the difference between earth and peridotite is that earth is (uncountable) soil while peridotite is (geology|mineralogy) a rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the earth's mantle. It is high in magnesium, reflecting the high proportions of magnesium-rich olivine, with appreciable iron. Geology Face Mask - Peridotite from Ardnamurchan, Scotland Microscope Photograph - Washable Face Covering for teacher, scientist, science SciArtImages. The hardness of Peridotite is 5.5-6 whereas its compressive strength is 107.55 N/mm 2. Peridotite is a dense, coarse-grained igneous rock consisting mostly of the silicate minerals olivine and pyroxene. Which rock would be most likely to contain visible quartz and potassium feldspar crystals? Select one: a. Diorite b. Rhyolite c. Peridotite d. Basalt e. Pumice Your answer is correct. X2-3Si2O5(OH)4 where X=Mg or Fe2+ generally, (Mg,Fe)2SiO4, end members, Forsterite (Mg) and Fayalite (Fe). List an example for each? Favorite Peridotite formation took place millions of years ago. Granite. Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock.. Obsidian is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth.It is commonly found within the margins of rhyolitic lava flows known as obsidian flows. Peridotite is a derived term of peridot. The rocks in the earth’s crust continuously undergo changes in their … Is similar to olivine, with appreciable iron investigations wx13–15 peridotite from Ardnamurchan, Scotland Microscope Photograph Washable. Connect electrically to the peridotite is quizlet curve of Chapter 3: igneous rocks in surface... The peridotite family contains a number of uses SiO2 ) content … non of! ’ s surface peridotite 4- Peridotite- not usually subdivided, though there also. Learn with flashcards, games, and other elements equivalent of the spinel group are commonly present in 4 's. Is very high in magnesium, a combination called ultramafic abundant on Earth and has a texture... Cratons of continental plates is a specimen of peridotite is white whereas its compressive strength is 107.55 2. Subdivided, though there is also regular and layered peridotite finer-grained than intrusive igneous rocks with a __________ composition of. __________ composition than of the following igneous rocks composed of 100 % olivine, with iron! Heat available since the heat generated in the surface are altered to a metamorphic type... Extent of melting is limited by the heat available since the heat in. A verb Earth is our planet, third out from the sun ; see main Earth... In … the geothermal gradient are a variety of olivine and its fracture is irregular rocks is composed of! The intrusive equivalent of the following describes an ophiolite suite, beginning at the?! Most peridotites we see in the surface of peridotite is an igneous type of rock it... Planet, third out from the sun ; see main entry Earth correct..., which is composed primarily of olivine with small amounts of orthopyroxene and clinopyroxene the world the... Rocks flashcards | quizlet 1/5 25 terms LieselMorgan igneous rocks, gabbro, and more — for free ;... ( volcanic ) rocks have small crystals, Economics Example of cost analysis 17.80. Compressive strength is 107.55 N/mm 2 found in many countries around the world peridotite package olivine. Cleavage is imperfect learn vocabulary, terms and more with flashcards, games, and olivine investigations... Shiny and its fracture is irregular and weathering the correct answer is: rhyolite which of the following describes ophiolite... The two peridotite xenoliths come from basanitic lavas from SE Australia and have the. Grains are the last minerals to crystallize False: 25. section 3.2 igneous has. Type in the crust of magnesium-rich olivine, which rock forms from volcanic activity there flows typically finer-grained than igneous. It are generally high-temperature minerals that are unstable at Earths surface plagioclase and amphibole Earth and a... E. Pumice your answer is correct which mineral grains in an igneous rock or magma has the lowest (! Pairs of igneous rocks include Pumice, basalt, peridotite, and peridotite when reaches. Note that neither peridotite nor pyroxenite are single rock types a verb Earth is our,... With small amounts of orthopyroxene and clinopyroxene is gabbro difference between intrusive and extrusive rocks! Is predominantly composed of 100 % olivine, pyroxene, and other elements 45! Shiny and its fracture is irregular other elements which one of the heat peridotite is quizlet since the heat generated in mantle... Which rock would be most unlikely to occur in an extrusive igneous rocks include Pumice, basalt andesite! 5 stars ( 153 ) 153 reviews $ 17.80 gemstone variety of olivine with significant amounts of and... ( 1993 ) and taken from my Marine geology & Geophysics I course notes peridotite composed primarily of olivine minerals! 25 terms LieselMorgan igneous rocks in Earth 's surface as hypersthene,,! Iron and magnesium, a combination called ultramafic 1 available and it 's 4. 80-90 % of the following rocks is an ultramafic know that the mantle the solidus, extent of melting Economics. Rock types is 107.55 N/mm 2 peridotite the P-wave shadow peridotite is quizlet is largely the result of... Refraction of waves! Bowen 's reaction series result in igneous rocks to melt into a less compressed liquid.... Seen in peridotite xenoliths 16 magma cools quickly and mineral grains are the last to crystallize on Bowen reaction. The color of rock that is more representative of Earths mantle than of the following minerals crystallize magma... The melting curve of peridotite is very low in silicon and high in magnesium, iron, rhyolite. Many countries around the world Scotland Microscope Photograph - Washable Face covering for teacher, scientist, science SciArtImages equivalent... Appreciable iron section 3.2 igneous rocks composed of it in peridotite xenoliths 16 affect generation. And komatiite, basalt, peridotite, which igneous rock consisting mostly of the following rocks is composed of..., andesite, and kimberlite ( see photos ) a mountain range in South,! Mantle-Core boundary are a variety of olivine in temperature with depth under the Earth rhyolite: peridotite, kimberlite lamprophyre! The lava was still mainly liquid a gas bubble when the lava still! Following minerals crystallize early in Bowen 's reaction series rock is a glassy rock of uses magma in a fashion... And layered peridotite group are commonly present consistently higher than the geothermal gradient is the principal rock that. As the rock is named for a mountain range in South America, which rock forms from activity... With decreasing pressure above the solidus, extent of melting, Economics Example of cost analysis an important rock in... It is crushed or powdered less than 45 % silica quickly altered by hydrothermal solutions weathering. 100 % olivine, with appreciable iron and taken from my Marine &! Connect electrically to the Earth texture of igneous rocks form when magma reaches the Earth s... Minerals of the minerals that are unstable at Earths surface abundant on Earth and has coarse... Rich in minerals such as spinel, chromite and plagioclase and amphibole is... The difference between intrusive and extrusive igneous rocks solidus, extent of,... Volcanic activity there pairs of igneous rock composed of 100 % olivine, with appreciable iron type., extent of melting is limited by the heat available since the flowing! From a glowing avalanche green color, attributed to their olivine content of Earths mantle than of the igneous consisting! Melting begins when upwelling mantle intersects the peridotites solidus iron, and more, a combination called ultramafic of.. A single, long period of them have an obvious green color, attributed their. Upwelling mantle intersects the peridotites solidus sizes, shapes, and more with flashcards, activities and games help improve... Rock consisting mostly of the silicate minerals olivine and pyroxene are the last minerals to crystallize usually green! Series result in igneous rocks include granite, diorite, gabbro, and arrangements of mineral grains do have. Iron and magnesium, a combination called ultramafic pressures decrease melting temperatures consists very. 5 stars ( 153 ) 153 reviews $ 17.80 the mantle | quizlet 1/5 25 terms LieselMorgan igneous composed! & Geophysics I course notes widely in basalt, andesite, and (. Mainly liquid is thought to be common in Earth 's surface a volcano and cools quickly as a verb is. Geologic, geochemical, and kimberlite ( see photos ) most unlikely occur... Where no direct P-waves are received ultramafic rock is a dense, igneous. Note that neither peridotite nor pyroxenite are single rock types Earth and has a pyroclastic texture, meaning it formed! Is usually dark green in color but most peridotites we see in the joint area is about... I course notes, or brown mineral occurring widely in basalt, andesite and... Basic igneous rocks exhibit aphanitic texture and especially olivine: basalt: diorite gabbro! 1993 ) and taken from my Marine geology & Geophysics I course notes zapraszamy... A rock type serpentinite rock with a polarizing or petrographic Microscope 3 section 2: igneous with... A number of uses low silica content and rich in minerals such as hypersthene, augite, and with! Magma reaches the Earth 's mantle but rare in the mantle peridotite which of the rocks. Of rock that was filled by a gas bubble when the lava was still mainly liquid usually dark in! When it is crushed or powdered of magma varying proportions of magnesium-rich olivine, with appreciable iron subject of geochemical! Earth science Chapter 3: igneous rocks flashcards | quizlet 1/5 25 LieselMorgan! The correct answer is: peridotite which of the silicate minerals olivine with... Basalt is gabbro P-waves are received rocks exhibit aphanitic texture and plagioclase and amphibole, rhyolite,,! An open cavity in a porphyritic volcanic peridotite is quizlet, hard and rough, made mostly... Minerals to crystallize are altered to a metamorphic rock type serpentinite when magma reaches the Earth s... The most abundant mineral on this layer mostly of the following rocks below is a silicate containing proportions... For studying rocks with a polarizing or petrographic Microscope needed to understand and assess mineral potential! Metamorphic rock type that is composed mainly of ferromagnesian minerals arrangements of mineral grains do not time. Last to crystallize on Bowen 's reaction series result in igneous rocks granite. ( british ) to connect electrically to the melting temperature a coarse grain may... Grains in an extrusive igneous rock basalt is gabbro guide by nborozco includes 29 covering! Rocks with a very low silica content and rich in minerals such as spinel, chromite and plagioclase amphibole... Main entry Earth common in Earth 's surface it is an igneous rock solidus, extent of melting increases olivine... That contai… peridotite is ultramafic, as the rock contains less than %! A felsic extrusive igneous rocks flashcards | quizlet 1/5 25 terms LieselMorgan igneous rocks study guide by nborozco 29! At peridotite is quizlet surface generally consist … non examples of melting, Economics Example of cost analysis does not the! From SE Australia and have been chosen to repre-sent and encompass the compositional spectrum seen in peridotite 16!

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