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Dolerite is an Igneous rock formed below the Earth's surface, it is a form of basalt containing relatively little silica
http://wiki.answers.com/Q/Is_dolerite_an_igneous_rock
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Answers.com > Wiki Answers > Categories > Science > Earth Sciences > Geology > Dolerite and gabbro are both igneous rocks Dolerite has crystals about 1 mm across and gabbro has crystals about 5 mm across What does this indicate about the formation of these rocks?
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wiki.answers.com/Q/Dolerite_and_gabbro_are_both_igneous...
wiki.answers.com/Q/Dolerite_and_gabbro_are_both_igneous_rocks_Dolerite_has_crystals_about_1_mm_across_and_gabbro_has_crystals_about_5_mm_across_What_does_this_indicate_about_the_formation_of_these_rocks
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any of various other igneous rocks, as diabase. ... any basaltlike igneous rock whose composition can be determined only by microscopic examination ... Use Dolerite in a Sentence...
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dictionary.reference.com/browse/Dolerite
dictionary.reference.com/browse/Dolerite
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there are few of these rocks in North Devon. The rocks are usually varieties of basic igneous rocks such as basalts and dolerites (commonly called ...
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www.devon.gov.uk/de/overview_report_2_6.pdf
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See definition and knowledge of Dolerite. What does Dolerite mean? More information and details included. ... A dark, fine-grained igneous rock; diabase. Dolerite is a volcanic rock. While similar to basalt, it contains crystals which can be seen with a hand lens. This indicates that it cooled a little more slowly than basalt.
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www.b2bchinastone.com/products-94/dolerite.html
www.b2bchinastone.com/products-94/dolerite.html
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1. (Earth Sciences / Geological Science) a dark basic intrusive igneous rock consisting of plagioclase feldspar and a pyroxene, such as augite; often emplaced in dykes ... Coeval activity of this age is represented globally by the Central Scandinavian Dolerite Complex (sills) of the Baltic Shield.
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www.thefreedictionary.com/dolerite
www.thefreedictionary.com/dolerite
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Although names are legion, igneous rocks are formed from a small number of mineral types ... Igneous rocks cannot be given names reflecting a specific chemical or mineralogical composition, since these are too variable, although they are composed of minerals of more or less definite composition.
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www.du.edu/~jcalvert/geol/igneous.htm
www.du.edu/~jcalvert/geol/igneous.htm
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Igneous Rocks - Diabase (Dolerite) ... ; Igneous Rock Diabase; ... Common Igneous Rocks:
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www.rocks-rock.com/diabase.html
www.rocks-rock.com/diabase.html
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Dolerite is a medium-grained, mafic, intrusive, igneous rock with a chemical composition similar to that of basalt and gabbro. The rock usually forms as dykes and sills in basaltic provinces. It may also occur as dyke or sill swarms.
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www.francesjane.com/dolerite.html
www.francesjane.com/dolerite.html
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