Fig. 14
Representative photomicrographs of selected sandstone samples of the Ab-Haji Formation. a siltstone rock fragment (SRF), monocrystalline quartz (Q), and chert (Ch) in submature litharenite. Ravar–Abkuh Sample. b Metamorphic rock fragments (MRF), monocrystalline quartz (Q), and chert (Ch) in submature phyllitharenite. Kuh-e-Rahdar Sample. c Monocrystalline quartz (Q), and chert (Ch) in mature quartz-rich sublitharenite. d Chert grains (Ch) in mature chertarenite. C and D Parvadeh Sample. All photos with crossed polars