“…Debate, too, has been limited, resulting in multiple analytical strategies and few opportunities for demonstrating their general applicability. Among the approaches taken are chemical analyses of the metal in comparison to potential ores (Devos et al, 2000), isotopic ratio analysis of the metal in comparison to potential ores (Degryse et al, 2007(Degryse et al, , 2009Schwab et al, 2006) and, most commonly, the chemical analysis of slag inclusions (SIs) in the metal in comparison to potential ironmaking regions or ore bodies (Blakelock et al, 2009;Buchwald, 2005;Coustures et al, 2003Coustures et al, , 2006Desaulty et al, 2008;Desaulty et al, 2009;Gordon and van der Merwe, 1984;Hedges and Salter, 1979;Leroy, 2010, Leroy et al, 2011, 2012.…”