“…Data for MoS 2 are from Noddack and Noddack (1931), Fleischer (1959, 1960, Morachevskii and Nechaeva (1960), Terada et al (1971), McCandless et al (1993, Markey et al (1998), Stein et al (1998Stein et al ( , 2001, Selby and Creaser (2001), Barra et al (2003), Mao et al (2003), Sun et al (2003b), Berzina et al (2005), Zhang et al (2005), Mao et al (2006), and Selby et al (2007b). Data for 'FeS 2 ' are from Freydier et al (1997), Brü gmann et al (1998, Cohen et al (1999), Mathur et al (1999Mathur et al ( , 2000Mathur et al ( , 2005, Stein et al (2000), Arne et al (2001), Kirk et al (2001Kirk et al ( , 2002, Barra et al (2003), Hannah et al (2004), Morelli et al (2004Morelli et al ( , 2005Morelli et al ( , 2007, Zhang et al (2005), and Liu et al (2008). and Re indicates that a significant proportion of Re, but not Mo, is organically-bound, perhaps as metalloporphyrin species (Miller, 2004).…”