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Exsolution in ternary feldspars |
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| Authors: | Harald Carstens |
| Institution: | (1) Norges geologiske undersökelske, Trondheim, Norway |
| Abstract: | It is shown that the microstructures of the antiperthites of the South Norwegian anorthosites strongly suggest an exsolution origin. In addition to the normal exsolution reactions responsible for most antiperthites, exsolution of potash feldspar in plagioclase may occur by a discontinuous mode of precipitation. |
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