Reportedly, this field, home to "the largest diabase (, The Totem is 50m high x 4m wide and is the only freestanding, Our voyage took us near a noisy colony of guillemots, early arrivals on the black, Stonehenge consists of two kinds of stone: sarsen (Tertiary sandstone) and bluestone (various grades of, Five quarries extracted iron ore, limestone, sandstone, coal and, The soils, more than eight feet deep in most parts of the estate, are derived from reddish-brown, Both seams are thick seams of up to 6 meters thick with no faulting or, "Good examples of this include the excellent work undertaken by our geology team in conjunction with external consultants and the CSIRO in identifying the fractionated, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content. Like other mafic rocks, it is relatively low in silica content.
Dolerite is a dark igneous rock. Dolerite is similar in composition to basalt, which is eruptive (from volcanoes), and gabbro, which is plutonic.
Although not popular, it makes an excellent monumental stone and is one of the dark-coloured rocks commercially known as black granite. The supernatural state: water divining and the Cape underground water rush, 1891-1910, Award for quarry that was once a blot on the landscape, A look at Zimbabwe's Smaldeel Coffee Estate, IN DEPTH: Minergy Progresses Botswana Coal Project Ahead Of AIM IPO, Bardoc Gold paves way for gold resource upgrade at WA project. Diabase, also called Dolerite, fine- to medium-grained, dark gray to black intrusive igneous rock. 1. It is a medium grained igneous rock, and can be dark grey or black with greenish shades in colour. The differing crystal sizes are due to the different rate of cooling, basalt cools quickly and has a very fine structure, while gabbro cools very slowly, at great depth, and large crystals develop. A dark, fine-grained igneous rock; diabase. It is extremely hard and tough and is commonly quarried for crushed stone, under the name of trap.
It is a mafic rock, containing magnesium and iron, often in form of olivine. https://www.thefreedictionary.com/dolerite. (Geological Science) a dark basic intrusive igneous rock consisting of plagioclase feldspar and a pyroxene, such as augite; often emplaced in dykes 2.
Travel: Our magic trip to Harry Potter country; JON BIRD and his family are spellbound at Haven's northern retreat. a dark basic intrusive igneous rock consisting of plagioclase feldspar and a pyroxene, such as augite; often emplaced in dykes any dark igneous rock whose composition cannot be determined with the naked eye Derived forms of dolerite doleritic … This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.
(Geological Science) any dark igneous rock whose composition cannot be determined with the naked eye any of various dark igneous rocks of basaltic composition, as diabase.
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