Fig. 1
Thin section photomicrographs of rock specimens. (a) Fine-grained sandstone; (b) coarse-grained sandstone; (c) gneiss observed under plane-polarized light; (d) gneiss presented under cross-polarized light.
Fig. 1 | Scientific Reports
Thin section photomicrographs of rock specimens. (a) Fine-grained sandstone; (b) coarse-grained sandstone; (c) gneiss observed under plane-polarized light; (d) gneiss presented under cross-polarized light.
