The use of predominance area diagrams (PAD) to determine the oxygen and sulfur fugacities prevailing during historical metallurgical processes: the case of fifteenth to seventeenth century copper slags from Polichno (Old Polish industrial district)

Heritage Science

Table 4 Representative EPMA analyses of sulfides, arsenides, and metallic phases occurring in Polichno slags

	gln	pyh	cc	do	do	CuFeAs	Metallic phases
	POL5	POL5	POL3	POL4	POL3	POL1	POL3	POL3	POL3	POL4	POL3
S	13.4	36.2	19.7	0.15	0.10	0.11	0.11	bdl	0.06	bdl	bdl
Fe	0.23	62.4	0.60	0.27	0.38	36.1	82.3	90.9	bdl	0.18	1.04
Co	bdl	bdl	bdl	bdl	bdl	0.65	0.82	0.91	bdl	bdl	bdl
Ni	bdl	bdl	bdl	0.36	1.55	1.07	0.63	0.35	1.21	0.37	bdl
Cu	0.29	0.86	77.8	70.0	66.7	23.2	1.69	2.3	76.4	81.9	94.0
As	bdl	bdl	0.43	28.1	23.0	37.5	2.9	2.5	18.0	17.4	1.17
Al	bdl	bdl	0.12	bdl	bdl	bdl	bdl	bdl	bdl	bdl	0.18
Sb	bdl	bdl	bdl	0.78	9.0	bdl	0.13	bdl	5.6	0.94	1.91
Pb	86.9	bdl	0.42	bdl	bdl	bdl	bdl	bdl	bdl	0.15	bdl
P	bdl	bdl	0.07	bdl	0.09	0.35	11.0	2.1	0.10	bdl	0.41
Si	bdl	bdl	0.09	bdl	bdl	bdl	bdl	bdl	bdl	bdl	0.10
Ca	bdl	bdl	0.09	bdl	bdl	bdl	bdl	bdl	bdl	bdl	bdl
Total	100.82	99.46	99.32	99.66	100.82	98.98	99.58	99.06	101.37	100.94	98.81
	a.p.f.u						Atomic concentration
S	1.00	1.00	1.00	0.01	0.01	0.01	–	–	0.12	–	–
Fe	–	0.99	0.02	0.01	0.02	1.29	1.87	91.17	0.00	0.21	1.62
Co	–	–	–	–	–	0.02	–	0.87	–	–	–
Ni	–	–	–	0.02	0.07	0.04	–	0.33	1.36	0.41	–
Cu	–	0.01	2.00	2.94	2.86	0.73	93.76	2.00	79.39	83.74	96.31
As	–	–	0.01	1.00	0.84	1.00	4.03	1.84	15.87	15.09	0.87
Al	–	–	0.01	–	–	–	0.23	–	–	–	0.25
Sb	–	–	–	0.02	0.20	–	0.12	–	3.03	0.50	0.76
Pb	0.98	–	–	–	–	–	–	–	–	0.05	0.05
P	–	–	–	0.00	0.01	0.02	–	3.80	0.22	–	–
Si	–	–	–	–	–	–	–	–	–	–	0.15
Ca	–	–	–	–	–	–	–	–	–	–	–
Total	1.98	2.00	3.03	4.00	4.00	3.11	100.00	100.00	100.00	100.00	100.00