Naehr, TH, Birgel, D, Bohrmann, G, MacDonald, IR and Kasten, S (2009) Biogeochemical controls on authigenic carbonate formation at the Chapopote "asphalt volcano", Bay of Campeche. Chemical Geology, 266(3-4). 399-411. doi:10.1016/j.chemgeo.2009.07.002