Stromatolites, one of the most ancient life forms on earth, mats of micro-organisms that become rock-like structures through accretion of calcium carbonate, in highly saline lagoons like here in Lake Thetis, Cervantes, Dandaragan Shire, Western Australia, Australia, Pacific

color image travel photography travel destinations day outdoors horizontal landscape landscapes scenics nature natural world topography geology natural phenomena physical geography surface processes rocks rock formation rock formations stromatolites lake thetis thetis lake lakes cervantes dandaragan western australia australia pacific