Widespread Permian granite magmatism in Lower Austroalpine units: significance for Permian rifting in the Eastern Alps

Yuan, Sihua; Neubauer, Franz; Liu, Yongjiang; Genser, Johann; Liu, Boran; Yu, Shengyao; Chang, Ruihong; Guan, Qingbin

doi:10.1186/s00015-020-00371-5

Swiss Journal of Geosciences

Table 3 Major (wt%), trace and rare earth element (ppm) analyses of porphyric metagranites (“Grobgneis”)

From: Widespread Permian granite magmatism in Lower Austroalpine units: significance for Permian rifting in the Eastern Alps

Sample	SG3A1	SG3A2	SG3B	SG3C	SG3D	WW35A	WW35B	WW35C
SiO₂	70.58	69.83	71.29	69.83	70.97	72.36	72.55	72.06
TiO₂	0.19	0.19	0.22	0.20	0.20	0.24	0.24	0.26
Al₂O₃	15.82	16.33	15.31	16.24	15.45	14.43	14.26	14.59
Fe₂O₃T	1.59	1.63	1.86	1.67	1.78	1.94	1.90	2.10
MnO	0.03	0.03	0.03	0.03	0.04	0.04	0.04	0.03
MgO	0.33	0.34	0.40	0.34	0.38	0.46	0.43	0.51
CaO	0.65	1.03	0.62	1.00	0.99	0.86	0.86	0.79
Na₂O	3.50	3.74	3.50	3.85	3.50	3.56	3.83	3.36
K2O	6.25	6.14	5.61	5.92	5.63	4.73	4.60	4.88
P₂O₅	0.13	0.13	0.13	0.14	0.13	0.19	0.19	0.19
LOI	1.28	1.08	1.36	1.27	1.27	1.15	0.97	1.20
Total	100.36	100.47	100.33	100.50	100.32	99.96	99.88	99.96
A/CNK	1.15	1.11	1.18	1.12	1.13	1.15	1.11	1.19
A/NK	1.26	1.28	1.29	1.27	1.30	1.31	1.26	1.35
V	23.04	15.55	25.53	24.16	12.66	24.89	28.75	30.49
Cr	2.19	2.37	6.10	2.24	1.22	17.26	1.61	8.00
Co	2.53	2.29	3.01	1.98	2.46	2.34	2.67	2.92
Ni	43.55	25.02	56.16	9.71	27.67	10.98	34.10	24.56
Ga	18.40	19.70	19.19	19.33	18.90	18.44	16.99	19.50
Rb	240.00	251.52	227.90	233.11	222.44	251.05	240.38	276.59
Sr	89.07	106.24	76.45	100.41	89.62	65.01	65.34	63.91
Y	14.38	22.90	14.50	22.02	22.20	19.07	19.49	18.91
Zr	139.11	128.58	162.51	144.01	145.56	129.56	123.09	136.59
Nb	10.73	11.20	12.87	11.41	11.20	15.67	15.89	17.02
Cs	4.15	4.48	4.19	4.20	4.27	7.56	7.76	7.81
Ba	461.20	498.39	387.53	414.38	392.97	284.75	252.07	297.59
La	19.71	30.18	19.99	26.23	27.28	24.76	27.46	28.06
Ce	55.20	63.82	63.82	58.48	58.87	56.54	65.32	62.76
Pr	5.20	7.36	5.50	6.66	6.98	6.04	6.70	6.70
Nd	18.14	26.49	18.85	23.88	24.91	22.39	24.68	24.85
Sm	3.90	5.70	4.09	5.14	5.38	4.63	5.03	5.17
Eu	0.58	0.87	0.57	0.78	0.76	0.53	0.55	0.54
Gd	2.96	4.51	3.00	4.28	4.34	3.90	4.09	4.18
Tb	0.50	0.72	0.51	0.68	0.69	0.60	0.61	0.61
Dy	2.86	4.14	3.01	3.98	4.04	3.43	3.43	3.39
Ho	0.52	0.75	0.54	0.73	0.74	0.63	0.62	0.60
Er	1.52	2.15	1.59	2.09	2.12	1.81	1.73	1.64
Tm	0.23	0.31	0.24	0.30	0.30	0.25	0.24	0.22
Yb	1.57	1.97	1.63	1.96	1.94	1.61	1.57	1.43
Lu	0.22	0.27	0.23	0.27	0.27	0.23	0.21	0.19
Hf	3.80	3.49	4.44	3.88	3.92	3.61	3.41	3.70
Ta	1.00	1.01	1.16	1.05	1.02	1.82	1.86	1.92
Th	11.09	12.20	13.37	12.25	12.23	14.16	14.42	14.77
U	3.11	3.83	3.50	3.93	3.78	3.84	4.12	3.65
(La/Yb)_N	13.77	8.29	8.36	14.45	7.47	7.61	10.37	9.67
Eu/Eu*	0.59	0.59	0.81	0.75	0.28	0.67	0.75	0.70
ΣREE	113.11	149.26	123.57	135.45	138.63	127.34	142.24	140.36
M	1.30	1.38	1.26	1.37	1.32	1.26	1.31	1.22
T_Zr	782	770	799	780	785	779	771	786

A/NK = Al₂O₃/(Na₂O + K₂O) (mol %); A/CNK = Al₂O₃/(CaO + Na₂O + K₂O) (mol %)
T_Zr (Zircon saturation temperatures, in °C) = 12900/[2.95 + 0.85 × M + ln(496000/Zr_melt)]−273, in here M = [(Na + K + 2Ca)/(Al × Si), all in cation fraction]

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