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ultrabasic |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.03 sec. |
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ultrabasic [¦əl·trə′bā·sik] (petrology) Of igneous rock, having a low silica content, as opposed to the higher silica contents of acidic, basic, and intermediate rocks. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Chromite occurs as magmatic segregations in ultrabasic igneous rocks. The lab tests state that "One of the rocks (epidotite), being the product of a high metamorphic reaction of ultrabasic magma and groundwater might be seen as another indication of processes related to the intrusion of kimberlite pipes. Southern Dyke - an extremely weathered ultrabasic rock identified along with the recovery of chrome spinels and high interest clinopyroxenes have been recovered. |
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