Model based Paleozoic atmospheric oxygen estimates: a revisit to GEOCARBSULF Zhang, Shuang ; Planavsky, Noah J. ; Krause, Alexander J. ; Bolton, Edward W. ; Mills, Benjamin J. W. Abstract Publication: American Journal of Science Pub Date: May 2018 DOI: 10.2475/05.2018.05 Bibcode: 2018AmJS..318..557Z