Drilling Sample no.	M-19 208	210	M-36 209	290	M-56 204	M-65 209	Arithm. averages
Drilling Sample no.	M-19 208	210	M-36 209	290	M-56 204	M-65 209	Siirt Madenköy	Ergani-Maden, n = 22
Oxides, wt%
SiO₂	31.18	13.30	4.85	6.06	16.30	10.69	13.73	21.80
Al₂O₃	2.61	9.47	0.47	0.38	8.84	0.53	3.72	6.98
FeO¹	25.99	30.96	34.01	32.61	37.05	30.36	31.83	23.13
MgO	0.13	8.92	0.03	1.94	11.19	2.79	4.17	12.83
CaO	0.04	0.78	0.05	0.07	1.08	2.57	0.77	0.73
Na₂O	bdl²	bdl	bdl	bdl	bdl	bdl
K₂O	0.46	bdl	0.02	bdl	0.01	bdl	0.08	0.05
TiO₂	0.07	0.81	0.05	0.01	0.56	0.02	0.25	0.10
P₂O₅	0.03	0.05	0.04	0.03	0.12	0.02	0.05	0.03
SO₃	30.64	9.79	43.85	39.96	4.20	37.30	27.62	9.87
BaO	0.02	0.003	11.78	0.03	0.08	0.09	2.00	0.005
Sum_(Oxydes)	91.17	74.08	95.17	81.09	79.43	84.37	84.21	75.98
Cu	1.88	0.13	1.81	2.43	1.58	0.13	1.33	2.01
Pb	0.002	0.001	0.71	0.06	0.003	0.001	0.12	0.002
Zn	0.003	0.007	4.56	0.003	0.003	0.13	0.79	0.02
Minor el., ppm
Ag	3	bdl	28	bdl	bdl	bdl	15
As	215	bdl	1575	554	bdl	bdl	781	10
Bi	28	26	53	49	72	32	43
Br	1	2	bdl	bdl	2	4	2
Cd	bdl	bdl	110	bdl	bdl	4	57
Cl	33	bdl	6	bdl	bdl	bdl	20	101
Co	344	307	612	406	201	140	335	283
Cr	33	69	43	46	42	25	43	615
Ga	bdl	16	bdl	bdl	12	bdl	14	7
Mn	2	998	bdl	32	1,061	662	551	690
Mo	59	88	92	83	20	111	75	14
Ni	16	27	14	bdl	30	bdl	21	264
Rb	9	4	14	6	6	3	7	5
Sb	4	bdl	148	6	bdl	bdl	53
Se	29	22	49	53	38	27	36