Bristen granite: a highly differentiated, fluorite-bearing A-type granite from the Aar massif, Central Alps, Switzerland

Bucher, Kurt; Seelig, Ulrike

doi:10.1007/s00015-017-0294-z

Swiss Journal of Geosciences

Table 5 REE carbonates synchisite and parisite. Synchisite analyses arranged with decreasing Y content

From: Bristen granite: a highly differentiated, fluorite-bearing A-type granite from the Aar massif, Central Alps, Switzerland

Mineral	Synchisite-Y									Synchisite-Ce		Parisite
Point	4	12#	14	7	5	6	7	8#	33	27	8	4	4#	3
Y₂O₃	18.89	18.53	17.76	17.35	15.04	13.05	12.45	11.38	10.89	10.88	2.69	3.95	4.66	4.92
La₂O₃	3.56	3.51	3.71	3.78	3.82	5.69	5.40	5.82	5.21	4.77	6.76	9.10	8.40	8.79
Ce₂O₃	9.99	10.17	10.19	9.95	10.52	12.72	14.19	15.44	14.86	14.54	20.44	24.75	22.34	22.32
Pr₂O₃	1.38	1.02	1.43	1.61	1.23	1.76	1.27	1.60	2.09	2.22	2.85	2.88	2.73	2.76
Nd₂O₃	5.97	6.93	6.71	6.70	6.28	7.62	7.49	8.49	8.97	9.08	11.28	11.41	10.27	10.45
Sm₂O₃	2.20	1.60	2.17	2.46	2.31	2.14	2.18	2.10	3.03	3.13	3.53	2.67	2.52	2.42
Gd₂O₃	3.35	2.43	3.59	3.27	3.57	2.43	2.22	2.32	3.18	3.61	3.01	2.04	2.41	2.67
Dy₂O₃	2.47	1.32	2.02	2.16	2.53	1.55	1.18	2.22	1.12	1.93	0.48	0.45	0.52	0.43
CaO	19.50	17.47	19.08	19.88	19.66	18.64	18.04	16.18	19.31	19.20	18.76	10.51	10.22	10.91
F	6.21	5.84	6.34	6.29	5.97	5.95	5.99	5.78	6.20	6.17	6.12	6.83	6.62	6.52
Total^a	73.52	68.82	73.00	73.45	70.93	71.57	70.42	71.34	74.86	75.53	75.92	75.45	71.77	72.75
O=F	2.61	2.46	2.67	2.65	2.51	2.51	2.52	2.43	2.61	2.60	2.58	2.88	2.79	2.75
Total corr.	70.91	66.36	70.33	70.80	68.42	69.06	67.90	68.90	72.25	72.93	73.34	72.57	68.98	70.00
CO₂ stoich wt	30.19	28.00	29.66	30.16	29.16	28.63	27.95	27.12	29.50	29.59	28.53	24.44	23.52	24.01
Total incl CO₂	101.23	94.47	100.02	101.05	97.70	97.80	95.86	96.09	101.81	102.61	101.87	97.08	92.53	94.16
Y	0.489	0.514	0.468	0.452	0.407	0.357	0.348	0.323	0.289	0.288	0.074	0.191	0.235	0.243
La	0.064	0.067	0.068	0.068	0.072	0.108	0.105	0.114	0.096	0.087	0.129	0.305	0.293	0.301
Ce	0.178	0.194	0.185	0.178	0.196	0.239	0.273	0.302	0.272	0.265	0.387	0.823	0.775	0.758
Pr	0.024	0.019	0.026	0.029	0.023	0.033	0.024	0.031	0.038	0.040	0.054	0.095	0.094	0.093
Nd	0.104	0.129	0.119	0.117	0.114	0.140	0.141	0.162	0.160	0.161	0.208	0.370	0.347	0.346
Sm	0.037	0.029	0.037	0.041	0.040	0.038	0.039	0.039	0.052	0.054	0.063	0.084	0.082	0.077
Gd	0.054	0.042	0.059	0.053	0.060	0.041	0.039	0.041	0.053	0.059	0.052	0.061	0.076	0.082
Dy	0.039	0.022	0.032	0.034	0.041	0.026	0.020	0.038	0.018	0.031	0.008	0.013	0.016	0.013
Fe	0.000	0.000	0.000	0.000	0.000	0.001	0.000	0.001	0.000	0.000	0.000	0.065	0.086	0.043
Ca	1.017	0.975	1.011	1.042	1.071	1.026	1.016	0.925	1.033	1.022	1.039	1.022	1.037	1.085
F	0.956	0.962	0.992	0.973	0.960	0.967	0.996	0.975	0.979	0.970	1.000	1.961	1.984	1.914
Ca	1.017	0.975	1.011	1.042	1.071	1.026	1.016	0.925	1.033	1.022	1.039	1.022	1.037	1.085
Y	0.489	0.514	0.468	0.452	0.407	0.357	0.348	0.323	0.289	0.288	0.074	0.074	0.074	0.074
REE	0.500	0.503	0.525	0.521	0.546	0.625	0.641	0.727	0.688	0.697	0.900	1.751	1.683	1.671
REE total + Y	0.989	1.016	0.992	0.972	0.953	0.982	0.989	1.050	0.978	0.985	0.974	1.825	1.757	1.745
Y/Ce	2.75	2.65	2.53	2.53	2.08	1.49	1.28	1.07	1.07	1.09	0.19	0.23	0.30	0.32

^aTotal includes traces of Fe, Sr

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