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The texture of an igneous rock is determined by its rate of cooling. Molten elements trapped underground, called magma, requires from several days to thousands of years to crystallize. ... The resulting rock is composed of unordered atoms forming a non-crystalline mass, such as the volcanic rock obsidian shown below.
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www.cnsm.csulb.edu/departments/geology/people/bperry/Ig...
www.cnsm.csulb.edu/departments/geology/people/bperry/IgneousRocksTour/IntroToIgneousRocks.html
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In Sweden, a preliminary investigation of the contamination situation of igneous rock surrounding underground storage facilities of diesel showed that the situation was severe. The diesel was believed to have penetrated ... Characterization of lubricity improver additive in diesel by gas chromatography-mass spectrometry.
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www.ncbi.nlm.nih.gov/pubmed/11347612
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Igneous rocks form when molten rock cools and solidifies (crystallizes). Molten rock trapped underground is called magma. ... Igneous rocks are identified by their mineral content and by their texture. The texture refers to the size, shape and boundary relationships of adjacent mineral crystals in a rock mass. In igneous rocks,
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cmsc.minotstateu.edu/Labs/rockslab/Igneous/igneous%20ro...
cmsc.minotstateu.edu/Labs/rockslab/Igneous/igneous%20rockswelcome.html
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... altered or weathered basalts, or other igneous, metamorphic rocks, ..... Three different underground excavations located in the same rock mass (with ...
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linkinghub.elsevier.com/retrieve/pii/S0886779806001209
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Sierra Nevada granite; -- an exhumed mass of intrusive igneous rocks; ... What does the texture of the rock in this picture suggest? (A) Once molten and cooled quickly after a volcanic eruption; (B) Once molten and cooled slowly deep underground; (C) Large grains indicate that it was deposited by a fast-moving river;
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geode.colorado.edu/~gtucker/Courses/geol1010/jan25_igne...
geode.colorado.edu/~gtucker/Courses/geol1010/jan25_igneous_et.pdf
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In order to study the three dimensional stability of one large underground stope after excavation, the numerical simulation software FLAC3D is used to calculate the deformation and failure situation of the surrounding rock mass. ... Du-gan Qing, Zi-qiang Zhu, Qun-yi Liu, ... TY - CONF; JO - Computer Modeling and Simulation,
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doi.ieeecomputersociety.org/10.1109/ICCMS.2009.18
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As mentioned, igneous rocks form when molten rock crystallizes by cooling either on the surface (volcanic), at shallow depth (hyp-abyssal) or deep underground (plutonic).
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www.dmtcalaska.org/course_dev/explogeo/class04/notes04....
www.dmtcalaska.org/course_dev/explogeo/class04/notes04.html
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batholith , batholite , pluton , plutonic rock large mass of intrusive igneous rock believed to have solidified deep within the ... large mass of intrusive igneous rock believed to have solidified deep within the earth ... What rock is formed underground in a huge batholith?
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www.answers.com/topic/batholith-batholite-pluton-pluton...
www.answers.com/topic/batholith-batholite-pluton-plutonic-rock
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A mass of igneous rock intruded between layers of sedimentary rock, resulting in uplift. ... Cooling underground takes place slowly, giving time for larger crystals to form in the cooling magma. The surface rock above laccoliths often erodes away completely, leaving the core mound of igneous rock.
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www.answers.com/topic/laccolith
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