Stromatolites or stromatoliths are layered bio-chemical accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains by biofilms (microbial mats) of microorganisms, especially cyanobacteria. Stromatolites provide ancient records of life on Earth by fossil remains which might date from more than 3.5 billion years ago. Lichen stromatolites are a proposed mechanism of formation of some kinds of layered rock structure that is formed above water, where rock meets air, by repeated colonization of the rock by endolithic lichens.© Wikipedia
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Hamelin Pool near Denham in Shark Bay is one of the few places in the world where you can view living Stromatolites. Stromatolites are living bacteria that form colonies and date back about 3.5 billion years - microbes have been found in these columns that are similar to those found in ancient rock.
We called in to look at this phenomena on the way to Denham - turn onto Hamlin Pool Road about 100 kilometres east of the town. A boardwalk has been built over the water to view these rare formations as they are fragile, damage easily and take years to grow. As you walk along the boardwalk you can read informative signs that tell you about the area and importance of preserving this rare colony. The water is very salty and protected from the ocean currents creating a perfect environment for Stromatolites.
The car parking area has plenty of space to park while towing a caravan. The Hamelin Pool Historic Telegraph Station, Stromatolite Museum, caravan park and cafe are not far away from the Stromatolite boardwalk. The Shell Block Quarry is behind the museum - well worth a visit.