Table 1.

Complete results of the SEM analysis by sampling depth

SEM	Level	Category	Elements present
1009	030–040	large diameter slagged ceramic	slag: Al, Si, K, Fe, Cu, Ba, Pb ceramic: Mg, Al, Si, K, Fe
1010	130–140	light weight vesicular slag	Na, Mg, Al, Si, P, K, Ca, Ti, Fe, Cu, Ag, Ba, Pb
1004	310–320	matte cake	Si, S, P Cu, Ag, Pb
1001	340–350	slagged ceramic	slag: Si, S, Fe, Zn, Pb ceramic: Al, Si, K, Ba, Pb
1002	340–350	matte cake	S, Cu, Ag, Pb,
1003	340–350	vesicular slag	Na, Mg, Al, Si, P, S, K, Ca, Ti, Mn, Fe, Pb
1007	360–370	matte	Al, Si, S, Cu, As, Ag, Pb
1006	430–440	ore	Si, S, Ca, Cu, As, Ag
1008	440–450	slagged ceramic	slag: Al, Si, K, Ca, Fe, Ba, Pb ceramic: Al, Si, K
1005	450–460	slagged ceramic	slag: Mg, Al, Si, S, K, Ca, Cu, Ag, Ba, Pb ceramic: Si, Ti, Fe