foram B/Ca and Mg/Ca 
        from the Paleocene-Eocene Thermal Maximum (56 Mya) 
        These data were published in Penman et al, Paleoceanography 29 (2014) 
    
   D. Penman, J. Zachos (UCSC), B. Hoenisch (LDEO) 
    
   version: 28 July 2014