In the October issue of GSA Today, Grant Young of the University of Western Ontario discusses the possible causes of the numerous glaciations that characterized the Neoproterozoic and concludes that a dramatic shift in Earth's climate may have occurred during the Ediacaran, in part due to a large marine impact. According to Young, this shift separates Proterozoic glaciations, which were likely triggered by the effect of supercontinent assembly and breakup on atmospheric carbon dioxide levels.
Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...
Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...