The Val Biandino Intrusive Suite (central Southern Alps, N Italy): new geochronological and geochemical data on the Early Permian magmatic activity in the Southalpine Domain

Zanchetta, Stefano; Crippa, Chiara; Zanchi, Andrea; Montemagni, Chiara

doi:10.1186/s00015-024-00457-4

Swiss Journal of Geosciences

Table 2 Whole rock major (oxide %) and trace element (ppm) abundances in the analysed samples of the Val Biandino Intrusive Complex

From: The Val Biandino Intrusive Suite (central Southern Alps, N Italy): new geochronological and geochemical data on the Early Permian magmatic activity in the Southalpine Domain

	VBQD—Val Biandino Quartz-Diorite									VBSG—Val San Biagio Granite
Rock type	Gabbro-diorite B	Diorite A	Diorite A	Diorite D	Granodiorite A	Granodiorite B	Granite B	Granite B	Granite B	Granite SBG	Granite SBG
Sample	VBZ-37	VBZ-11	VBZ-16	VBZ-40	VBZ-32	VBZ-36B	VBZ-1	VBZ-3	VBZ-35	VBZ-42	VBZ-43
SiO₂	52.14	53.77	51.86	58.10	58.97	67.81	73.33	73.06	74.96	68.51	73.49
TiO₂	0.80	0.95	0.55	0.98	0.87	0.50	0.19	0.23	0.21	0.34	0.23
Al₂O₃	16.97	18.10	11.21	17.48	18.64	16.03	14.70	14.87	13.02	15.61	14.08
FeO*	7.40	7.14	9.18	6.30	5.94	3.23	1.34	1.49	1.41	2.77	1.76
MgO	7.29	5.32	16.40	3.65	2.60	1.37	0.47	0.47	0.44	0.46	0.35
CaO	7.07	5.42	4.29	5.62	4.64	1.87	1.38	1.90	0.65	1.68	0.09
Na₂O	2.08	2.31	1.16	2.94	3.36	3.72	3.02	3.20	2.29	3.66	2.41
K₂O	2.25	2.58	1.99	2.20	2.47	3.21	4.22	4.02	5.25	4.86	5.50
P₂O₅	0.07	0.13	0.05	0.21	0.26	0.15	0.06	0.05	0.22	0.07	0.04
MnO	0.15	0.16	0.18	0.13	0.10	0.07	0.03	0.03	0.03	0.05	0.07
Mg no	49.64	42.68	64.12	36.69	30.45	29.78	25.96	23.93	23.75	14.24	16.56
LOI	2.54	3.18	2.55	2.34	2.14	1.59	0.99	0.74	1.01	1.07	2.11
Sc	29	21	35	20	9	8	4	4	5	15	6
V	188	168	223	136	102	41	12	15	21	21	16
Cr	230	0	1000	60	20	bd	bd	bd	bd	bd	bd
Co	29	23	62	16	12	7	2	2	4	3	3
Ni	50	20	320	20	bd	bd	bd	bd	bd	bd	bd
Ga	16	19	11	20	22	17	17	18	12	23	17
Rb	92	108	73	77	104	83	185	161	126	107	168
Sr	242	242	122	400	366	343	150	229	211	149	45
Y	20	21	10	21	13	20	13	11	12	33	24
Zr	109	141	66	223	189	175	97	105	76	346	170
Nb	5	7	2	10	10	9	6	6	6	14	10
Ba	263	330	420	560	467	678	469	574	873	1701	499
Cs	5.2	7.7	7.1	3.6	5.8	1.6	6	4.7	3.8	3.3	10.1
La	14.4	19.5	8	26.6	26.4	30.6	34.9	35.3	12.3	83.3	32.8
Ce	30.4	41.2	16.6	54.2	51.7	62.1	66.2	67.9	23.7	163	66.3
Pr	4.02	5.04	2.02	6.37	5.61	6.87	7.01	7.36	2.66	17.6	7.21
Nd	17.3	21.2	8.7	25.1	20.7	25.7	25.7	26	10.1	65.6	26.6
Sm	3.7	4.6	1.9	5.3	3.4	4.9	4.9	4.8	2.1	11.7	5.5
Eu	1.18	1.32	0.55	1.57	1.6	1.11	0.83	0.99	1.28	2.26	0.76
Gd	3.7	4.3	2	4.5	2.7	4.2	3.5	3.4	1.9	8.9	4.6
Tb	0.6	0.7	0.3	0.7	0.4	0.7	0.5	0.5	0.4	1.3	0.8
Dy	3.6	4.1	1.9	4.1	2.3	3.7	2.4	2.3	2.2	7	4.6
Ho	0.7	0.8	0.4	0.8	0.5	0.7	0.4	0.4	0.4	1.3	0.9
Er	2.1	2.2	1.2	2.2	1.3	1.9	1.2	1	1.3	3.5	2.5
Tm	0.3	0.34	0.17	0.32	0.2	0.29	0.17	0.15	0.21	0.45	0.38
Yb	1.9	2.3	1.1	2.1	1.4	1.7	1.1	0.9	1.5	3	2.7
Lu	0.32	0.35	0.17	0.33	0.23	0.28	0.16	0.14	0.24	0.47	0.39
Hf	2.3	3.1	1.3	4.7	3.7	3.8	2.4	2.4	1.6	7.6	4.1
Pb	6	1	1	11	18	26	25	26	47	16	21
Th	3.6	7.8	2.1	6.5	7.1	10.9	15.6	14.5	3.6	14.5	19.7
U	1.3	1.6	0.5	1.6	1.8	3	3.1	2.8	1.4	1.6	4.9
Ta	0.3	0.5	0.2	0.7	0.7	1.2	0.8	0.6	1.2	0.7	1.2
ƩREE	84.22	107.95	45.01	134.19	118.44	144.75	148.97	151.14	60.29	369.38	156.04
ƩLREE	69.82	91.54	37.22	117.57	107.81	130.17	138.71	141.36	50.86	341.2	138.41
ƩHREE	3.38	3.95	1.83	4.17	2.47	3.92	3.34	3.26	1.66	8.43	4.21
Eu/Eu*	0.97	0.91	0.86	0.98	1.61	0.75	0.61	0.75	1.96	0.68	0.46
(La/Yb)_n	5.44	6.08	5.22	9.09	13.53	12.91	22.76	28.13	5.88	19.92	8.71
(La/Sm)_n	2.51	2.74	2.72	3.24	5.01	4.03	4.60	4.75	3.78	4.60	3.85
(Gd/Yb)_n	1.61	1.55	1.50	1.77	1.60	2.04	2.63	3.13	1.05	2.45	1.41

A,B,C,D refer to the intrusive bodies of Fig. 2
LOI Loss On Ignition, FeO* total Fe expressed as FeO* = 0.8998*Fe₂O₃; Mg no. = MgO/(MgO + FeO*)x100 expressed in wt% with all Fe as FeO; bd below detection limit
n subscript—normalization to chondrite values (McDonough and Sun, 1995)
SLREE light rare earth element sum, SHREE heavy rare earth elements sum; Eu/Eu* = Eu_n / RADQ(Sm_n x Gd_n)

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