guide to thin section microscopy - Mineralogical Society of America
guide to thin section microscopy - Mineralogical Society of America
guide to thin section microscopy - Mineralogical Society of America
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Guide <strong>to</strong> Thin Section Microscopy<br />
Alteration phenomena<br />
Raith, Raase & Reinhardt – February 2012<br />
Figure 3-27. Secondary alteration through reaction with aqueous fluids (II)<br />
A: Chloritization− biotite. B,C: Pinitization− cordierite→muscovite. D: Brucite pseudomorphing<br />
peri-clase. E,F: Replacement <strong>of</strong> corundum by muscovite (E) and gibbsite (F). G: Alteration <strong>of</strong> kyanite<br />
<strong>to</strong> pyrophyllite. H,I: Muscovite replacing andalusite (H) and staurolite (I). J: Saussuritization− plagioclase→clinozoisite+albite.<br />
K: Sericitization− plagioclase→muscovite. L: Zeolitization− anorthite→<br />
thomsonite.<br />
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