Wall rock is the rock that constitutes the wall of an area undergoing geologic activity. Examples are the rock along the neck of a volcano, on the edge of a pluton that is being emplaced, along a fault plane, enclosing a mineral deposit, or where a vein or dike is being emplaced. In volcanoes, wall rock can often become broken off of the wall and ...
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http://en.wikipedia.org/wiki/Wall_rock
(from the article `igneous rock`) Another method of creating different daughter magmas from a parent is by having the latter react with its wall rocks. Consider a magma that is ...
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http://www.britannica.com/eb/a-z/w/5
[
n] - a rock immediately adjacent to a vein or fault
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http://www.webdictionary.co.uk/definition.php?query=wall%20rock
noun a rock immediately adjacent to a vein or fault
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https://www.encyclo.co.uk/local/20974
No exact match found.
