BORDOLOI, Sandip, Department of Geological Sciences, Univ of Alabama, 202, Bevill Building, Tuscaloosa, AL 35487, AHARON, Paul, Department of Geological Sciences, University of Alabama, 2003 Bevill Building, 7th Avenue P.O. Box 870338, Tuscaloosa, AL 35487-0338, PAPE, Thomas, Institut für Biogeochemie und Meereschemie, Univ Hamburg, Bundesstr.55, Hamburg, 20149, Germany, TAVIANI, Marco, ISMAR-Marine Geology Division, Consiglio Nazionale delle Ricerche, via Gobetti 101, Bologna, 40129, VAI, Gian Battista, Dipartimento di Scienze della Terra e Geo-ambientali, Univ. of Bologna, Via Zamboni 67, Bologna, 40126, Italy, SEN GUPTA, Barun, Geology and Geophysics, Louisiana State Univ, Baton Rouge, LA 70808 and PLATON, Emil, Energy and Geoscience Institute, Univ of Utah, 423 Wakara Way, Salt Lake City, 84108, bordo001@bama.ua.edu, bordo001@bama.ua.edu