weathering forms of the sandstone rocks in the przadki nature reserve

abstract background bioerosion bizarre carvings chunk coarse corrasion crust deflation detail eocene erosion erosive exfoliation fancy fissures form forms furrows geological geology insolation lifeless limonitic mushy narrows natural nature neck pass pattern podkarpackie poland pores porous przadki reserve rock rocks rough sandstone shales shape solid spinners spongy stone structure suffosion surface texture vallecula voivodeship weathering