flysch rocky layers from the paleozoic-carboniferous age in penarroyas

abstract background base carboniferous cliff closeup compressed crack cracked cross detail eroded erosion flysch fossil geology graphic laminations layer layered limestone line material montalban nature old paleozoic pattern penarroyas peaplusmn arroyas as random ripple rock rocky rough royas sedimentary shale shape solid stone stratification surface teruel texture textured wall