Layered intrusion - Wikipedia, the free encyclopedia
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A layered intrusion is a large sill-like body of igneous rock which exhibits vertical layering or differences in composition and texture. These intrusions typically are many kilometers in areal exte...
en.wikipedia.org/wiki/Layered_intrusion
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What acreage (or percentage) of the continental US is covered by ultramafic/mafic rocks? I am doing a graduate thesis on soils formed from ultramafic/mafic rocks in the GA Piedmont at the University of Georgia, and I cannot seem to find an answer to this deceptively simple question.
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jersey.uoregon.edu/~mstrick/AskGeoMan/geoQuerry23.html
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Ultramafic (or ultrabasic) rocks are dark-colored igneous and meta-igneous rocks that are rich in minerals containing magnesium and iron ("mafic" minerals) and have a relatively low content of silica. The Earth's mantle is thought to be composed of ultramafic rocks.
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www.newworldencyclopedia.org/entry/Ultramafic_rock
www.newworldencyclopedia.org/entry/Ultramafic_rock
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Ultramafic - Definition of Ultramafic at Dictionary.com a free online dictionary with pronunciation, synonyms, and translation of Ultramafic. Look it up now! ... Definition of ultramafic - 3 dictionary results...
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dictionary.reference.com/browse/ultramafic
dictionary.reference.com/browse/ultramafic
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Petrogenetic grid for water-saturated ultramafic rocks in the system CaO-MgO-SiO2-H2O produced using the TWQ software of Berman (1988, 1990, 1991). ...
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www.whitman.edu/geology/winter/Petrology/Ch%2029%20Calc...
www.whitman.edu/geology/winter/Petrology/Ch%2029%20Calc%20and%20UM.ppt
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The class of rock which crystallizes from silicate minerals at the highest temperatures is sometimes referred to as "ultramafic" rock. It includes peridotite and komatiite. It is in the highest temperature range of the Bowen reaction series.
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hyperphysics.phy-astr.gsu.edu/HBASE/geophys/ultramafic....
hyperphysics.phy-astr.gsu.edu/HBASE/geophys/ultramafic.html
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; An intrusive igneous rock very rich in iron and magnesium and with much less silicon and aluminum than most crustal rocks. Most come from the Earth’s mantle.
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www.cartage.org.lb/en/themes/Sciences/Earthscience/Geol...
www.cartage.org.lb/en/themes/Sciences/Earthscience/Geology/AboutGeology/GeologicGlossary/U/ultramaficrock.htm
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Ultramafic rock is distributed throughout the Sierra Nevada, Coast Ranges and Klamath Mountains in Northern and Central California, and has been a source of increasing concern as new housing developments cut through these areas.
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www.news-medical.net/?id=11658
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Scientists recently published a report and map (pdf) identifying 6,000 square miles of ultramafic rocks -- those that formed from cooling magma and have very low silica content. Those rocks, scientists say, are ideal for carbon sequestration at or near the earth's surface.
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www.nytimes.com/gwire/2009/03/09/09greenwire-maps-show-...
www.nytimes.com/gwire/2009/03/09/09greenwire-maps-show-rocks-ideal-for-sequestering-carbon-10041.html
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