https://www.bas.ac.uk/data/our-data/publication/an-upper-jurassic-methane-seep-limestone-from-the-fossil-bluff-group-forearc-basin-of-alexander-island-antarctica/
An Upper Jurassic methane-seep limestone from the Fossil Bluff Group forearc basin of Alexander...
An anomalous Upper Jurassic limestone bed, 3 m thick, is present within the volcaniclastic infill of a forearc basin, exposed on Alexander Island, Antarctica....
upper jurassicmethane seepfrom thefossil bluffforearc basin