Chemistry:Lichen stromatolite

From HandWiki

Lichen stromatolites are laminar calcretes that are proposed as being formed by a sequence of repetitions of induration followed by lichen colonization. Endolithic lichens inhabit areas between grains of rock, chemically and physically weathering that rock, leaving a rind, which is then indurated (hardened), then recolonized.[1][2]

See also

References

  1. Colin F. Klappa (1979). "Lichen Stromatolites: Criterion for Subaerial Exposure and a Mechanism for the Formation of Laminar Calcretes (Caliche)". Journal of Sedimentary Petrology 49 (2): 387–400. doi:10.1306/212F7752-2B24-11D7-8648000102C1865D. http://archives.datapages.com/data/sepm/journals/v47-50/data/049/049002/0387.htm?doi=10.1306%2F212F7752-2B24-11D7-8648000102C1865D. 
  2. Paleobotany: The Biology and Evolution of Fossil Plants, Edith L. Taylor, Thomas N. Taylor, Michael Krings, page 119, [1]