https://en.m.wikipedia.org/wiki/Thrombolite
Thrombolites can be distinguished from microbialites or stromatolites by their massive size, which is characterized by macroscopic clotted fabric. Stromatolites are similar but consist of layered accretions. Thrombolites appear with random patterns that can be seen by the naked eye, while stromatolites has the texture of built-up layers.[2]
The name “cyanobacteria” (from Ancient Greek κύανος (kúanos) ‘blue’) refers to their bluish green (cyan) color,[5][6] which forms the basis of cyanobacteria’s informal common name, blue-green algae.[7][8][9][note 2]
Those are thrombolites! Ancient bacterial (?) colonies that are still alive, they turn the air and stuff into calcium deposits
Stromatolites? Yeah, relics of the first life on earth. Or are thrombolites different from stromatolites? Never heard of thrombolites.
https://en.m.wikipedia.org/wiki/Thrombolite
Thrombolites can be distinguished from microbialites or stromatolites by their massive size, which is characterized by macroscopic clotted fabric. Stromatolites are similar but consist of layered accretions. Thrombolites appear with random patterns that can be seen by the naked eye, while stromatolites has the texture of built-up layers.[2]
TIL
OMG THATS SO COOL!!!
DOWN A RABBIT HOLE I GO!
From the rabbit hole…
Both structures are created by cyanobacteria.
The name “cyanobacteria” (from Ancient Greek κύανος (kúanos) ‘blue’) refers to their bluish green (cyan) color,[5][6] which forms the basis of cyanobacteria’s informal common name, blue-green algae.[7][8][9][note 2]
Common blue-green algae has magic properties!