geological landscape. outcrop of silurian and devonian deposits

age ancient beach clouds coast column columnar dalmanites devonian era filtration formation fossils gemology gemstone geological geology grass green kitaygorod landscape layers limulurus monument muslovka natural nature outcrop paleology paleontology paleozoic panorama pembroke place podilski point retro river saaremaa section sediment silhouette silur silurian strata stratum structure talus ternava tovtry translucent trees village welsh