What is Huronian glaciation?
The '''Huronian [[glaciation]]''' (or Makganyene glaciation) lasted from 2400 million years ago (mya) to 2100 mya, during the [[Paleoproterozoic]] [[era]]. The glaciation was named after evidence recovered from the [[Lake Huron]] region in [[North America]]. There, three separate horizons of glacial deposits are separated by non-glacial [[sediment]]. This was one of the most severe and longest [[ice age]]s in geologic history. It was similar to the [[Snowball Earth]] ice ages that happened later, in the [[Neoproterozoic]] era.<ref>{{cite journal|last=Lane|first=Nick|date=2010|title=First breath: Earth's billion-year struggle for oxygen|url=https://www.newscientist.com/article/mg20527461.100-first-breath-earths-billionyear-struggle-for-oxygen.html|journal=New Scientist|issue=2746|doi=}} A snowball period, c2.4–c2.0 billion years ago, triggered by the Great Oxygenation Event [http://ptc-cam.blogspot.com/2010/02/first-breath-earths-billion-year.html] {{Webarchive|url=https://web.archive.org/web/20110106141826/http://ptc-cam.blogspot.com/2010/02/first-breath-earths-billion-year.html|date=2011-01-06}}</ref><ref>{{cite journal | author=Williams G.E. & Schmidt P.W. | title=Paleomagnetism of the Paleoproterozoic Gowganda and Lorrain formations, Ontario: low palaeolatitude for Huronian glaciation | journal=EPSL | year=1997 | volume=153 | issue=3 | pages=157–169 | url=http://www.cosis.net/abstracts/EAE03/08262/EAE03-J-08262.pdf | doi=10.1016/S0012-821X(97)00181-7 | bibcode=1997E&PSL.153..157W | access-date=2012-09-26 | archive-date=2016-06-09 | archive-url=https://web.archive.org/web/20160609195723/http://www.cosis.net/abstracts/EAE03/08262/EAE03-J-08262.pdf | url-status=dead }}</ref><ref>{{cite journal |author=Evans D.A; Beukes N.J. & Kirschvink J.L. |title=Low-latitude glaciation in the Palaeoproterozoic era |journal=Nature |volume=386 |issue=6622 |pages=262–6 |date=1997 |doi=10.1038/386262a0 |url=http://www.nature.com/nature/journal/v386/n6622/abs/386262a0.html|bibcode = 1997Natur.386..262E |s2cid=4364730 }}</ref><r