Figure F85. Photomicrograph of laminated terrigenous siltstone. The darker laminae are defined by micrite and fine platy components such as muscovite and biotite flakes (circled). Lighter laminae are dominated by quartz grains and carbonate cement. View in plane-polarized light (Subunit 5B: Sample 210-1276A-48R-3, 69-71 cm).

Figure F85. Photomicrograph of laminated terrigenous siltstone. The darker laminae are defined by micrite and fine platy components such as muscovite and biotite flakes (circled). Lighter laminae are dominated by quartz grains and carbonate cement. View in plane-polarized light (Subunit 5B: Sample 210-1276A-48R-3, 69-71 cm).