1. A paleosol record of the evolution of Cr redox cycling and evidence for an increase in atmospheric oxygen during the Neoproterozoic. Issue 6 (22nd August 2019) Authors: Colwyn, David Auerbach; Sheldon, Nathan D.; Maynard, J. Barry; Gaines, Robert; Hofmann, Axel; Wang, Xiangli; Gueguen, Bleuenn; Asael, Dan; Reinhard, Christopher T.; Planavsky, Noah J. Journal: Geobiology Issue: Volume 17:Issue 6(2019) Page Start: 579 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗