Figure F8. Photomicrographs of common clast types in gravel. A. Lithic sandstone, highly compacted. B. Calcitic mudstone. C. Foliated quartzite (mylonite). D. Chlorite schist. E. Basalt (plane-polarized light). F. Same as E (cross-polarized light). G. Plutonic rock (granite or gneiss) (plane-polarized light). H. Same as G (cross-polarized light).
Previous | Close | Next | Top of page