Economic and Environmental Geology

Fig. 4.

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Fig. 4. Microphotographs of the Geochang Granites in crossed nicols. A and B: FR (Fresh rock). C: WR (Weathered Rock). D: HWR (Highly Weathered Rock). Abbreviations: Afs=Alkali feldspar, Bt=Biotite, Chl=Chlorite, Clay=Clay minerals, Mc=Microcline, Ms=Muscovite, Pl=Plagioclase, Qz=Quartz, Ser=Sericite.
Econ. Environ. Geol. 2022;55:429-38
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