igneous rock

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igneous rock

The term for a rock formed when molten rock cools and hardens. Extrusive, or volcanic, igneous rock cools on the surface as lava. Intrusive igneous rock forms when molten rock cools underground.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.igneous rock - rock formed by the solidification of molten magma
rock, stone - material consisting of the aggregate of minerals like those making up the Earth's crust; "that mountain is solid rock"; "stone is abundant in New England and there are many quarries"
andesite - a dark grey volcanic rock
aplite - light-colored and fine-grained granitic rock consisting chiefly of quartz and feldspars
groundmass - (geology) the matrix of fine-grained crystalline material in which larger crystals are embedded
adesite - dark greyish extrusive rock
batholite, batholith, pluton, plutonic rock - large mass of intrusive igneous rock believed to have solidified deep within the earth
diorite - a granular crystalline intrusive rock
gabbro - one of a family of granular intrusive rocks
pegmatite - a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements
peridotite - a dark coarse-grained igneous rock consisting principally of olivine
rhyolite - very acid volcanic rock
volcanic rock - extrusive igneous rock solidified near or on the surface of the Earth
porphyritic rock, porphyry - any igneous rock with crystals embedded in a finer groundmass of minerals
sodalite - a vitreous mineral consisting of sodium aluminum silicate and sodium chloride in crystalline form; occurs in igneous rocks
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The complex is the oldest known magmatic rock suite exposed at the junction of the Thar Dessert and Rann of Kutch in the Sindh Province of Pakistan.
This is the number of diamonds that can only be compared with abnormally high enrichment of diamond lava rocks on the field of Dachin in India (77 diamonds in a 1-kilogram sample) and an unusual magmatic rock in Canada (1,500 diamonds in 28-kilogram sample)."
For shear joint caused by shear stress, when its wall is uniformly distributed, cryptomere or vitreous magmatic rock (such as basalt), fine-grained sedimentary rock (such as clay rock), or fine-grained metamorphic rock (such as slate) planar surface undulating shape may form.
This beautiful light to dark-green stone is not (precisely a marble but rather a deep magmatic rock marketed as marble and found near the city of Santa Clara in central Cuba.
There are some similarities between the Qatruyeh iron ores and hydrothermal Fe-oxide deposits such as Andean iron oxide and Iron springs Utah deposits [15, 18]; these are (1) occurrence of ore bodies along a subduction-related active continental margin, (2) abundances of magnetite with lesser hematite, (3) the presence of breccia and replacement textures, (4) iron oxides with low Ti contents, (5) uranium anomalies, and (6) chemical analyses results of magmatic rock samples of the Qatruyeh similar to those of calc-alkaline plutonic rocks in Andean iron belt (Table 1).
Mantle-normalized IE patterns for the various and different magmatic rock groups are represented in Figure 6.
The Zlatusha project was selected for license application based on the presence of favourable age and composition Cretaceous arc magmatic rocks, magmatic-hydrothermal mineral occurrences, and the presence of several magmatic-hydrothermal centers with outcropping copper-gold mineralization.
Their results support the interpretation that the original magmatic rocks were metasomatised by seawater solutions with possible involvement from magmatic fluids.
One of the most discussed matters in igneous petrology is the question of how magmatic rocks solidify or densify (in materials science).