div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: LP Nielsen et al Nature 463 1071-1074 2010 doi:101038nature08790 src=https:reader038fdocumentsinreader038viewer202210310056813177550346895d97f1c0html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divpLP Nielsen et al Nature 463 1071-1074 2010 doi:101038nature08790p pSediment O2 H2S Fe2+ and pH microprofilespdiv