dolerite-basalt

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• Dolerite — Dol er*ite, n. [Gr. dolero s deceptive, because it was easily confounded with diorite.] (Petrography) (a) A dark, crystalline, igneous rock, chiefly pyroxene with labradorite. (b) Coarse grained basalt. (c) Diabase. (d) Any dark, igneous rock… …   The Collaborative International Dictionary of English

• Basalt — For the World War II raid, see Operation Basalt. For the cities, see Basalt, Colorado and Basalt, Idaho. Basalt Igneous Rock Composition …   Wikipedia

• dolerite — doleritic /dol euh rit ik/, adj. /dol euh ruyt /, n. Petrol. 1. a coarse grained variety of basalt. 2. any of various other igneous rocks, as diabase. 3. any basaltlike igneous rock whose composition can be determined only by microscopic… …   Universalium

• dolerite — /ˈdɒləraɪt/ (say doluhruyt) noun 1. a coarse grained variety of basalt. 2. any of various other igneous rocks, as diabase. 3. any igneous rock resembling basalt whose composition cannot be determined without microscopic examination. {French, from …  

• Quartz-dolerite — An intrusive rock, similar to dolerite, but with an excess of quartz. Dolerite is similar in composition to basalt, which is eruptive (from volcanoes), and gabbro, which is plutonic. The differing crystal sizes are due to the different rate of… …   Wikipedia

• epigraphy — epigraphist, epigrapher, n. /i pig reuh fee/, n. 1. the study or science of epigraphs or inscriptions, esp. of ancient inscriptions. 2. inscriptions collectively. [1850 55; EPIGRAPH + Y3] * * * ▪ historiography Introduction  the study of written… …   Universalium

• Doleritic — Dolerite Dol er*ite, n. [Gr. dolero s deceptive, because it was easily confounded with diorite.] (Petrography) (a) A dark, crystalline, igneous rock, chiefly pyroxene with labradorite. (b) Coarse grained basalt. (c) Diabase. (d) Any dark, igneous …   The Collaborative International Dictionary of English

• Geology of Tasmania — Tasmania has a varied geological history, with the world s biggest exposure of diabase, or dolerite. Rocks from the Neoproterozoic, Paleozoic and Mesozoic time periods appear. It is one of the few southern hemisphere areas glaciated during the… …   Wikipedia

• Widgiemooltha Komatiite — The Widgiemooltha Komatiite is a formation of komatiite in the Yilgarn Craton of Western Australia. Stratigraphy The stratigraphy of the Widgiemooltha Komatiite is well known to be part of the regional komatiite magmatic event also seen at the… …   Wikipedia

• Diabase — /ˈd …   Wikipedia

• Dolerit — Spielplatz der Riesen , Doleritfelsen nahe der Farm Gariganus, Namibia Dolerit (griech. δολερός (dolerós): listig, trügerisch) ist ein grobkörniges Basaltgestein,[1] das aufgrund seines Gefüges dem Gabbro ähnelt. Es tritt in kleineren …   Deutsch Wikipedia