The Huronian glaciation (or Makganyene glaciation) extended from 2400 Mya to 2100 Mya, during the Siderian and Rhyacian periods of the Paleoproterozoic era, following the Great Oxygenation Event (GOE), which oxidised the atmospheric methane (a greenhouse gas). It was one of the most severe and longest ice ages in geologic history, similar to the shorter Snowball Earth ice ages that happened in the Cryogenian, a geologic period that lasted from 850 to 635 million years ago. It was named due to evidence collected from the Lake Huron region in North America where three separate horizons of glacial deposits are separated by non-glacial sediment.
The Huronian glaciation may have been caused by the oxygen catastrophe, a 250 million year lull in volcanic activity, resulting in lesser carbon dioxide levels and a reduced greenhouse effect, or a combination of both. However, there is little consensus on the exact cause of the event.
- ^ Lane, Nick (05 February 2010). "First breath: Earth's billion-year struggle for oxygen". New Scientist (2746). http://www.newscientist.com/article/mg20527461.100-first-breath-earths-billionyear-struggle-for-oxygen.html. A snowball period, c2.4–c2.0 Gya, triggered by the Great Oxygenation Event 
- ^ Williams G.E.; Schmidt P.W. (1997). "Paleomagnetism of the Paleoproterozoic Gowganda and Lorrain formations, Ontario: low palaeolatitude for Huronian glaciation" (PDF). EPSL 153 (3): 157–169. Bibcode 1997E&PSL.153..157W. doi:10.1016/S0012-821X(97)00181-7. http://www.cosis.net/abstracts/EAE03/08262/EAE03-J-08262.pdf.
- ^ Evans, D.A.; Beukes, N.J.; Kirschvink, J.L. (March 1997). "Low-latitude glaciation in the Palaeoproterozoic era". Nature 386 (6622): 262–6. Bibcode 1997Natur.386..262E. doi:10.1038/386262a0. http://www.nature.com/nature/journal/v386/n6622/abs/386262a0.html.
- ^ Kopp, Robert E.; Kirschvink, Joseph L.; Hilburn, Isaac A.; Nash, Cody Z. (2005). "The Paleoproterozoic snowball Earth: A climate disaster triggered by the evolution of oxygenic photosynthesis". Proc. Natl. Acad. Sci. U.S.A. 102 (32): 11131–6. Bibcode 2005PNAS..10211131K. doi:10.1073/pnas.0504878102. PMC 1183582. PMID 16061801. http://www.pnas.org/cgi/reprint/0504878102v1.