Dolerite formed where this molten rock solidified beneath the land surface, and occurs both as sills (where it intruded horizontally between layers) and ...
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users.aber.ac.uk/set/guide%20to%20the%20klip%20river%20...
users.aber.ac.uk/set/guide%20to%20the%20klip%20river%20wetlands.doc
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What could dolerite be used for? What is the hardness of dolerite? What is the deffinion of dolerite? Can you see light through dolerite? What is the definetion of dolerite? What does a dolerite rock have in it? Discuss how dolerite dykes were formed?
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wiki.answers.com/Q/What_is_a_dolerite_rock
wiki.answers.com/Q/What_is_a_dolerite_rock
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Dolerite is an igneous rock type, similar in origin to rhyolite but with a composition closer to basalt as it contains a higher proportion of iron and magnesium, giving it a darker colouring. It typically forms slabs and blocks and the vary...
http://www.climber.co.uk/categories/articleitem.asp?ite...
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The Palisades of the Hudson, near New York City, are formed of a thick horizontal sheet of diabase. In the lower part of this sheet is a layer rich in the mineral olivine. ... As defined, diabase is equivalent to the British term dolerite. The British term diabase is an altered diabase in the ... How is dolerite formed?
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www.answers.com/topic/dolerite
www.answers.com/topic/dolerite
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How is it formed? Dolerite is the medium-grained equivalent of gabbro. The crystals are slightly smaller than gabbro, indicating that the magma cooled more quickly. It usually occurs as small intrusions called ‘dykes’ or ‘sills’ which are sheet-like and cut through the surrounding rocks.
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www.open2.net/sciencetechnologynature/worldaroundus/too...
www.open2.net/sciencetechnologynature/worldaroundus/toolkit/microgabbro.html
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Five dolerite dikes emplaced in the Precambrian New Jersey Highlands show little variation in major-element content either within or between them. Based on normative mineralogy, four dikes are quartz tholeiite and one is an olivine tholeiite.
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bulletin.geoscienceworld.org/cgi/content/abstract/84/3/...
bulletin.geoscienceworld.org/cgi/content/abstract/84/3/1081
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The silicic melt has ruptured the well-formed dolerite chilled margin (~15 cm thick), opening it much like a trap door, and propagated deeply into the dolerite. ... That the dolerite chilled margin was well formed before the dike was formed is clear, and the fact that the granitic melt existed side by side with the...
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gsa.confex.com/gsa/2003AM/finalprogram/abstract_62070.h...
gsa.confex.com/gsa/2003AM/finalprogram/abstract_62070.htm
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Stirling Castle sitting on the escarpment formed by the Stirling quartz-dolerite sill, taken from 305 m. west of Kildean Farm, west of Stirling. The flat area in the foreground is a low 25 ft. raised beach. The sill is regarded as late Carboniferous - early Permian age.
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www.scran.ac.uk/000-000-147-402-C?
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A selection of articles related to dolerite ... The cliffs are formed from steep dolerite and columnar bassalt and have a long history of rock climbing on their faces starting from the earliest days of the sport and leading to a number of ...
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www.experiencefestival.com/dolerite
www.experiencefestival.com/dolerite
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