%0 Journal Article %T Paleozoic-aged microbial methane in an Ordovician shale and carbonate aquiclude of the Michigan Basin, southwestern Ontario %A I.D. Clark %A D. Ilin %A R.E. Jackson %A M. Jensen %A L. Kennell %A Mohammadzadeh, Hossein %A A. Poulain %A Y.P. Xing %A K.G. Raven %J Organic Geochemistry %@ 0146-6380 %D 2015