intrusivas
English translation: intrusive rocks
| 11:53 Jul 5, 2008 |
| Portuguese to English translations [PRO] Science - Geology | |||||||
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|  Selected response from: Fabio Descalzi Uruguay Local time: 17:32 | ||||||
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| 5 +5 | intrusive rocks |
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Answers
18 mins confidence: 
peer agreement (net): +5
peer agreement (net): +5intrusive rocks Explanation: http://www.thefreedictionary.com/Intrusive 2. Geology Of or relating to igneous rock that is forced while molten into cracks or between other layers of rock. http://en.wikipedia.org/wiki/Igneous_rock Igneous rocks (etymology from Latin ignis, fire) are rocks formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks. This magma can be derived from partial melts of pre-existing rocks in either the Earth's mantle or crust. Typically, the melting is caused by one or more of the following processes — an increase in temperature, a decrease in pressure, or a change in composition. Over 700 types of igneous rocks have been described, most of them formed beneath the surface of the Earth's crust. These have diverse properties, depending on their composition and how they were formed. |
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