Stromatolites are living structures built by microbes (especially cyanobacteria). Shark Bayâs stromatolites (Australia) are 2,000 to 3,000 years old but despite their relative young age they present
With the altitude of 3570 m, this is so far the highest site where actively forming non-lithified stromatolites have been found, located at the shore of a volcanic, alkaline lake Socompa (Argentina).
