Age of cleft monazites in the eastern Tauern Window: constraints on crystallization conditions of hydrothermal monazite

Gnos, Edwin; Janots, Emilie; Berger, Alfons; Whitehouse, Martin; Walter, Franz; Pettke, Thomas; Bergemann, Christian

doi:10.1007/s00015-015-0178-z

Swiss Journal of Geosciences

Table 6 SIMS Th-U–Pb isotopic ratios, element concentrations and ²³²Th-²⁰⁸Pb ages of monazite TAUERN 4

From: Age of cleft monazites in the eastern Tauern Window: constraints on crystallization conditions of hydrothermal monazite

Analysis ID	U (μg/g)	Th (μg/g)	Th/U measured	²⁰⁷Pb/²³⁵U	±σ (%)	²⁰⁶Pb/²³⁸U	±σ (%)	²⁰⁷Pb/²⁰⁶Pb	±σ (%)	²⁰⁸Pb/²³²Th	±σ (%)	Age (Ma) uncorr.	±σ (Ma)	Age (Ma) corrected	±σ (Ma)
Analyses >200 ppm Th
n4201 -Tauern4@03	74	918	12.405	0.80966	8.57	0.0093	7.53	0.00214	14.41	0.001762	10.61	35.59	3.77	16.32	1.75
n4201 -Tauern4@06	113	3885	34.381	0.26638	6.38	0.0053	3.99	0.00178	12.61	0.000913	2.63	18.44	0.48	16.99	0.46
n4201 -Tauern4@07	175	6645	37.971	0.10817	7.43	0.0033	2.49	0.00107	10.91	0.000846	2.59	17.08	0.44	16.45	0.46
n4201 -Tauern4@08	200	8671	43.355	0.04794	6.54	0.0030	2.17	0.00097	9.37	0.000813	2.51	16.43	0.41	15.86	0.40
n4201 -Tauern4@09	254	361	1.421	0.05539	10.39	0.0032	1.79	0.00161	12.35	0.001207	4.79	24.38	1.17	18.27	1.13
n4201-Tauern4@10	112	1000	8.929	0.39082	4.09	0.0061	1.94	0.00188	9.74	0.001509	2.58	30.47	0.78	17.98	0.76
n4201-Tauern4@l 1	64	234	3.656	0.44071	5.55	0.0073	1.97	0.00283	17.26	0.002730	6.08	55.11	3.35	14.94	1.41
n4201-Tauern4@12	174	221	1.270	0.11172	4.90	0.0035	2.04	0.00228	10.19	0.002318	5.14	46.80	2.40	16.63	1.65
n4201-Tauern4@13	161	1114	6.919	0.07708	7.47	0.0031	3.11	0.00095	10.28	0.000915	3.39	18.49	0.63	15.30	0.80
n4201-Tauern4@14	68	15,849	233.074	0.10970	8.63	0.0045	2.47	0.00078	9.61	0.000834	2.54	16.85	0.43	16.48	0.42
n4201-Tauern4@15	115	1695	14.739	0.05014	7.92	0.0032	3.80	0.00090	10.24	0.000917	3.09	18.53	0.57	17.80	0.63
n4201-Tauern4@16	181	2474	13.669	0.04007	12.37	0.0033	3.44	0.00144	11.27	0.000690	2.75	13.95	0.38	13.95	0.38
n4201-Tauern4@17	267	1967	7.367	0.05389	9.72	0.0032	3.50	0.00158	11.39	0.000743	2.75	15.02	0.41	13.21	0.50
n4201-Tauern4@18	237	2791	11.776	0.05226	10.84	0.0033	2.55	0.00167	10.99	0.000774	3.05	15.65	0.48	15.04	0.49
n4201-Tauern4@19	118	799	6.771	0.06401	14.76	0.0034	6.01	0.00157	13.90	0.000711	4.94	14.37	0.71	13.09	0.79
n4201 -Tauern4@20	182	2759	15.159	0.03484	15.65	0.0034	3.92	0.00150	11.50	0.000719	2.76	14.53	0.40	13.95	0.43
n4201-Tauern4@21	213	5493	25.789	0.02469	14.11	0.0030	3.21	0.00158	10.92	0.000718	2.72	14.50	0.39	14.34	0.39
n4201 -Tauern4@22	42	16384	390.095	0.16248	7.95	0.0060	2.31	0.00082	10.19	0.000784	2.51	15.83	0.40	15.58	0.39
n4201 -Tauern4@23	121	3873	32.008	0.03395	7.69	0.0031	2.63	0.00082	9.49	0.000933	2.78	18.85	0.52	18.46	0.53
n4201 -Tauern4@24	63	9759	154.905	0.06,485	11.56	0.0037	3.14	0.00079	10.15	0.000860	2.58	17.37	0.45	17.28	0.46
n4201 -Tauern4@25	106	9616	90.717	0.03834	13.38	0.0039	4.58	0.00133	11.24	0.000728	2.50	14.72	0.37	14.51	0.37
Analyses <200 ppm Th
n4201-Tauern4@l	133	108	0.812	0.60490	3.90	0.0074	1.75	0.01287	9.71	0.009822	2.55
n4201 -Tauern4@02	87	50	0.575	No data	No data	0.0170	1.75	0.05006	9.73	0.037260	2.50
n4201 -Tauern4@04	61	5	0.082	0.55549	5.96	0.0076	1.86	0.11078	11.37	0.115780	2.88
n4201 -Tauern4@05	66	189	2.864	0.36172	7.11	0.0062	2.59	0.00327	10.73	0.003468	3.86

Analysis ID refers to the analysis spots shown in Fig. 4

Back to article page