Calcium carbonate stromatolite (www.slsc.org) |
The precipitation of Calcium Carbonate can accompany cyanobacterial growth or occur during burial, which produces the lithified structures that record the microbially influenced sedimentary structures known as Stromatolites . They are not only lithified calcium carbonate structures (which is the common cement of warm shallow-water marine environments) but in addition, CO2 can be photoassimilated by micro-organisms and can be chemically favored over the precipitation of CaCO3 in warm marine and saline-lake environments. |
