Swiss Journal of Geosciences

Table 2 Representative analyses of clinopyroxene from the June Complex

From: Tectonic significance of Triassic mafic rocks in the June Complex, Sanandaj–Sirjan zone, Iran

Sample-unit	June Complex
Rock-type	Talc-bearing greenschist
Location	Clinopyroxene-rim
SiO₂	49.82	49.60	49.27	49.70	50.02	50.07	49.99	49.96	49.61	50.18
TiO₂	1.50	1.65	1.77	1.57	1.17	1.10	1.20	1.17	1.18	1.14
Al₂O₃	3.30	3.52	3.72	3.61	3.66	3.73	3.76	4.02	4.37	3.79
Cr₂O₃	0.00	0.02	0.06	0.07	0.35	0.62	0.35	0.69	0.92	0.49
Fe₂O₃	3.07	3.37	2.77	3.02	2.26	2.49	2.44	1.99	2.21	2.28
FeO	5.46	5.23	5.48	4.60	4.31	4.14	4.33	4.24	3.80	4.35
MnO	0.18	0.15	0.14	0.13	0.10	0.12	0.09	0.06	0.09	0.14
MgO	14.79	14.89	14.65	15.23	15.53	15.55	15.44	15.56	15.45	15.50
CaO	20.94	21.00	21.00	21.35	21.31	21.30	21.40	21.39	21.59	21.63
Na₂O	0.45	0.46	0.40	0.34	0.32	0.34	0.32	0.30	0.28	0.26
Total	99.52	99.89	99.26	99.64	99.01	99.45	99.32	99.37	99.51	99.76
Si	1.86	1.84	1.84	1.85	1.86	1.86	1.86	1.85	1.84	1.86
Ti	0.04	0.05	0.05	0.04	0.03	0.03	0.03	0.03	0.03	0.03
Al	0.15	0.15	0.16	0.16	0.16	0.16	0.16	0.18	0.19	0.17
Cr	0.00	0.00	0.00	0.00	0.01	0.02	0.01	0.02	0.03	0.01
Fe³⁺	0.09	0.09	0.08	0.08	0.06	0.07	0.07	0.06	0.06	0.06
Fe²⁺	0.17	0.16	0.17	0.14	0.13	0.13	0.13	0.13	0.12	0.13
Mn	0.01	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mg	0.82	0.83	0.82	0.84	0.86	0.86	0.85	0.86	0.85	0.85
Ca	0.84	0.84	0.84	0.85	0.85	0.85	0.85	0.85	0.86	0.86
Na	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02	0.02
Total	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00
Fe[t] + Mn	13.64	13.61	13.28	12.03	10.49	10.56	10.75	9.93	9.63	10.59
Mg#	75.84	75.92	76.29	78.46	81.12	81.02	80.62	82.02	82.40	80.83
Wo	36.89	36.46	36.72	36.99	37.21	36.65	37.09	36.72	36.35	37.25
En	41.12	41.29	40.85	42.18	43.08	43.00	42.75	43.01	42.66	42.73
Fs	8.78	8.11	8.80	7.36	6.87	6.59	6.85	6.63	6.01	6.93

Sample-unit	June Complex
Rock-type	Talc-bearing greenschist
Location	Clinopyroxene-rim						Clinopyroxene-core
SiO₂	50.05	50.07	50.24	49.95	49.69	50.53	52.08	52.10	52.13	51.83
TiO₂	1.17	1.04	0.97	1.07	1.18	0.83	0.50	0.50	0.46	0.51
Al₂O₃	3.89	4.02	3.74	4.00	4.23	3.79	2.29	2.30	2.27	2.31
Cr₂O₃	0.49	0.73	0.65	0.73	0.51	0.94	1.00	0.98	1.10	0.83
Fe₂O₃	2.04	1.80	2.11	2.23	2.11	2.22	1.55	1.42	1.21	2.06
FeO	4.35	4.15	3.75	3.70	4.18	3.33	2.75	2.82	3.02	2.24
MnO	0.08	0.13	0.12	0.11	0.07	0.06	0.11	0.08	0.05	0.02
MgO	15.54	15.62	15.85	15.74	15.49	16.01	17.41	17.35	17.28	17.43
CaO	21.38	21.49	21.52	21.61	21.40	21.93	21.70	21.72	21.66	21.88
Na₂O	0.30	0.25	0.27	0.25	0.26	0.24	0.22	0.24	0.24	0.24
Total	99.29	99.30	99.23	99.38	99.11	99.89	99.61	99.51	99.41	99.34
Si	1.86	1.86	1.86	1.85	1.85	1.86	1.91	1.91	1.91	1.90
Ti	0.03	0.03	0.03	0.03	0.03	0.02	0.01	0.01	0.01	0.01
Al	0.17	0.18	0.16	0.17	0.19	0.16	0.10	0.10	0.10	0.10
Cr	0.01	0.02	0.02	0.02	0.02	0.03	0.03	0.03	0.03	0.02
Fe³⁺	0.06	0.05	0.06	0.06	0.06	0.06	0.04	0.04	0.03	0.06
Fe²⁺	0.14	0.13	0.12	0.11	0.13	0.10	0.08	0.09	0.09	0.07
Mn	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Mg	0.86	0.86	0.88	0.87	0.86	0.88	0.95	0.95	0.95	0.95
Ca	0.85	0.85	0.85	0.86	0.85	0.86	0.85	0.85	0.85	0.86
Na	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02
Total	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00	4.00
Fe[t] + Mn	10.21	9.63	9.36	9.45	10.05	8.70	6.73	6.64	6.63	6.49
Mg#	81.56	82.52	83.05	82.83	81.79	84.10	87.96	88.11	88.11	88.33
Wo	37.01	36.95	37.17	36.86	36.59	37.34	38.74	38.91	38.95	38.95
En	42.99	43.18	43.80	43.46	42.91	43.92	47.58	47.45	47.31	47.71
Fs	6.84	6.63	5.99	5.88	6.59	5.22	4.38	4.44	4.71	3.45

Mg# = 100 × Mg/100 × Mg/(Mg + Fe[t] + Mn)
Wo wollastonite, En enstatite, Fs ferrosillite

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