Microbially-mediated anaerobic redox cycling of iron and nitrogen in sediments Coby, A. J. ; Shelobolina, E. S. ; Zu, H. ; Roden, E. E. ; Picardal, F. W. Abstract Publication: Geochimica et Cosmochimica Acta Supplement Pub Date: June 2009 Bibcode: 2009GeCAS..73R.232C