The evolution of the Sesia Zone (Western Alps) from Carboniferous to Cretaceous: insights from zircon and allanite geochronology

Vho, Alice; Rubatto, Daniela; Lanari, Pierre; Regis, Daniele

doi:10.1186/s00015-020-00372-4

Swiss Journal of Geosciences

Table 3 U, Th and Pb LA-ICP-MS allanite data for the Malone Valley samples

From: The evolution of the Sesia Zone (Western Alps) from Carboniferous to Cretaceous: insights from zircon and allanite geochronology

Spot name	Th/U	f206^a	f208^b	²³⁸U/²⁰⁶Pb total	± 1σ%	²⁰⁸Pb/²³²Th total	± 1σ%	²⁰⁷Pb/²⁰⁶Pb total	± 1σ%	²⁰⁶Pb/²⁰⁸Pb total	± 1σ%
AV16-44 blueschist
a10	3.3	0.61	0.92	13.7648	5.45	0.06875	5.45	0.5180	13.56	0.7234	9.72
a11	1.8	0.15	0.61	23.5382	3.06	0.02611	3.58	0.1631	7.65	1.9886	6.86
a12	3.1	0.49	0.88	13.4950	4.72	0.05999	3.77	0.4261	12.16	0.8613	4.94
a13	14.3	0.44	0.48	14.6266	5.06	0.02084	3.03	0.3892	11.16	0.5164	5.02
a15	1.0	0.13	0.73	22.4747	2.33	0.03271	3.63	0.1465	4.90	2.7610	4.33
a16	14.3	0.66	0.66	10.3774	4.61	0.02817	2.45	0.5603	8.66	0.4746	3.48
b7	3.3	0.49	0.84	13.3672	3.47	0.05465	3.33	0.4269	13.13	0.8181	4.57
b8	10.0	0.68	0.80	8.0391	4.36	0.04410	3.01	0.5741	11.12	0.5616	4.43
b9	12.5	0.56	0.61	10.4430	4.08	0.02780	3.05	0.4807	12.00	0.5226	4.25
b10	2.8	0.71	0.97	9.1026	5.95	0.12270	5.30	0.5967	10.13	0.6520	7.02
b11	4.2	0.75	0.96	8.8859	6.75	0.09793	4.47	0.6303	14.27	0.6063	7.85
b12	4.8	0.53	0.80	11.9325	4.70	0.05963	4.46	0.4598	9.23	0.7156	6.12
b13	1.3	0.14	0.68	23.2523	2.58	0.02971	3.40	0.1564	5.54	2.3456	4.46
b15	1.1	0.09	0.57	23.6168	2.07	0.02476	2.99	0.1209	4.39	2.9689	3.47
b16	5.9	0.22	0.40	20.9605	3.24	0.01846	3.16	0.2183	6.97	0.8871	4.17
b17	1.2	0.30	0.82	16.2748	4.08	0.08076	4.04	0.2821	11.05	1.3023	5.66
c7	2.7	0.40	0.81	16.6723	3.21	0.04666	2.82	0.3597	6.08	0.9675	3.66
c9	6.7	0.42	0.63	11.7679	3.96	0.03527	2.79	0.3708	9.23	0.7208	4.38
c11	2.7	0.65	1.02	9.9727	4.78	0.09992	3.23	0.5487	9.30	0.7478	6.33
c13	7.7	0.46	0.62	12.8828	4.63	0.03026	2.77	0.4021	9.97	0.6494	4.78
c14	4.8	0.58	0.82	8.5835	4.57	0.07413	3.96	0.4954	12.08	0.6754	8.67
c15	6.7	0.53	0.77	13.9947	4.33	0.03257	2.98	0.4599	7.35	0.6894	6.13
c16	0.4	0.12	0.83	22.7153	2.54	0.05996	4.07	0.1421	6.66	3.3315	4.59
d7	3.1	0.69	1.01	10.3506	5.23	0.08724	2.78	0.5820	7.02	0.6947	4.78
d8	12.5	0.54	0.58	10.4834	3.66	0.02749	1.72	0.4680	5.79	0.5080	3.52
d9	9.1	0.22	0.31	20.0085	2.71	0.01661	1.80	0.2203	8.48	0.6622	2.95
d11	3.6	0.70	0.92	7.8944	4.64	0.10729	3.47	0.5882	7.79	0.6271	5.50
d14	11.1	0.67	0.70	8.0436	5.03	0.04244	2.77	0.5668	7.74	0.5025	5.58
d15	11.1	0.47	0.52	15.3645	4.28	0.02046	2.46	0.4117	7.06	0.5247	4.49
d16	4.8	0.58	0.86	11.4948	6.01	0.05057	3.91	0.4956	6.42	0.7121	8.18
AV16-45 micaschist
d7	7.7	0.99	0.98	2.8709	1.13	0.16335	2.69	0.8345	0.77	0.4772	0.78
d8	14.3	0.98	0.95	3.4529	1.12	0.07380	2.64	0.8248	0.90	0.4683	0.81
d9	12.5	0.97	0.96	3.2476	1.22	0.08446	2.66	0.8184	0.77	0.4762	0.79
d10	6.3	0.96	0.97	3.6785	1.37	0.14824	2.82	0.8074	1.22	0.4859	1.19
d11	9.1	0.98	0.97	3.2270	1.45	0.12051	2.59	0.8265	1.08	0.4743	1.16
d12	8.3	0.95	0.98	2.9663	2.57	0.13550	2.87	0.7996	1.58	0.4981	1.89
d13	10.0	0.98	0.96	3.7171	1.57	0.09245	2.85	0.8233	1.06	0.4743	1.08
d14	16.7	0.98	0.96	3.0976	1.18	0.07036	2.58	0.8240	1.03	0.4708	0.90
d15	12.5	0.99	0.97	3.4491	1.69	0.08128	2.67	0.8333	1.24	0.4701	1.36
d16	12.5	0.98	0.97	3.2288	1.48	0.09037	2.89	0.8227	1.07	0.4759	1.01
e7	10.0	0.97	0.97	3.2008	1.47	0.10187	2.83	0.8187	1.46	0.4795	1.20
e8	12.5	1.00	0.97	3.4901	1.71	0.07706	3.08	0.8359	1.03	0.4687	0.93
e10	10.0	0.98	0.97	3.3608	1.67	0.10205	3.29	0.8258	1.26	0.4763	1.07
e12	11.1	0.98	0.97	3.9826	1.09	0.07643	2.72	0.8201	0.80	0.4784	0.82
e13	7.7	0.97	0.96	4.2551	1.79	0.11238	2.74	0.8156	1.44	0.4773	1.33
e14	14.3	0.98	0.97	3.1493	1.88	0.07585	2.88	0.8255	1.40	0.4764	1.37
a10	11.1	0.96	0.95	2.9047	1.61	0.11399	3.00	0.8141	0.96	0.4754	0.96
a11	6.3	0.95	0.98	6.1239	1.93	0.08546	3.28	0.7993	1.96	0.4962	1.05
a12	12.5	0.98	0.97	3.7571	2.31	0.07317	3.01	0.8264	1.48	0.4735	1.42
a13	9.1	0.99	0.95	3.5025	1.97	0.11581	3.16	0.8337	1.47	0.4641	1.52
a14	20.0	0.98	0.93	3.4058	1.31	0.05169	2.85	0.8226	0.87	0.4579	0.76
a15	5.6	0.97	0.98	7.7891	4.30	0.07928	6.16	0.8148	2.29	0.4882	2.73
b7	10.0	0.96	0.93	3.5370	2.11	0.09671	5.42	0.8143	1.63	0.4658	1.63
b8	11.1	0.96	0.95	3.6024	1.35	0.07926	4.59	0.8117	1.15	0.4725	0.92
b12	11.1	0.99	0.96	2.8421	1.29	0.11103	4.54	0.8348	0.85	0.4669	0.86
b13	16.7	0.96	0.95	3.4192	1.28	0.05859	4.54	0.8088	0.88	0.4740	0.92
b14	11.1	0.94	0.94	5.5336	1.69	0.05528	4.63	0.7933	1.40	0.4826	1.50
b15	14.3	0.97	0.96	3.6286	1.54	0.06453	4.57	0.8171	1.00	0.4742	1.01
b16	16.7	0.99	0.96	2.5220	1.17	0.08487	4.52	0.8347	0.77	0.4653	0.82

^a\(\mathrm{f}206= \frac{{}^{206}{\mathrm{Pb}}_{\mathrm{common}}}{{}^{206}{\mathrm{Pb}}_{\mathrm{total}}}\)
^b\(\mathrm{f}208= \frac{{}^{208}{\mathrm{Pb}}_{\mathrm{common}}}{{}^{208}{\mathrm{Pb}}_{\mathrm{total}}}\)

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