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metasomatism |
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metasomatism [‚med·ə′sō·mə‚ tiz·əm] (petrology) A variety of metamorphism in which one mineral or a mineral assemblage is replaced by another of different composition without melting. 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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The REE mineralization is probably epigenetic and may correspond to an episode of metasomatism associated with the emplacement of the Kimber alkaline intrusions (Labbe et al. Skuppesavon Deposit - Mineralisation is associated with stratabound fracturing and sodium metasomatism and desilication, in north trending, steep westerly dipping, part skarnified acid meta-volcanics. This second style of mineralization, associated with intense metasomatism in the paragneisses, consists of wide-spread alteration and mineralization in outcrops and intervening frost-heaved float and sub-outcrop material occupying a 5. |
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