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Greisening |
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Greisening
(geology), a medium-temperature process of the alteration of granites under the action of gases and solutions given off by cooling granitic bodies. In the greisening process, light-colored micas (lepidolite and muscovite) are formed from the granite feldspars. As a result of greisening, the parent rock is turned into greisens. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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