Growth mechanisms and environmental implications of carbonate concretions from the ~ 1.4 Ga Xiamaling Formation, North China

Journal of Palaeogeography

Table 2 REE concentrations of carbonate concretions from the Member IV of Xiamaling Formation (Huangtugang section)

Sample ID	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Y	Ho	Er	Tm	Yb	Lu	Ce/Ce*	Eu/Eu*	Y/Ho	Pr_SN/Yb_SN
1704HTG-3	11.100	42.500	3.620	16.100	4.340	1.006	5.168	0.869	4.620	26.300	0.813	1.900	0.244	1.400	0.182	1.62	1.03	32.3	0.81
1704HTG-4	12.000	33.900	3.300	14.400	3.480	0.756	3.635	0.543	2.840	16.200	0.499	1.330	0.172	1.010	0.143	1.39	1.06	32.5	1.03
1704HTG-6	11.900	38.200	3.400	14.500	3.430	0.741	3.576	0.567	2.840	15.600	0.523	1.260	0.154	0.955	0.134	1.48	1.03	29.8	1.12
1704HTG-8	18.500	62.500	5.300	22.400	5.390	1.233	6.093	0.932	5.020	24.800	0.887	2.240	0.270	1.600	0.228	1.54	1.07	28.0	1.04
1704HTG-9	12.300	37.500	3.490	15.100	3.550	0.777	3.884	0.584	2.990	16.100	0.537	1.450	0.162	1.050	0.147	1.44	1.05	30.0	1.05
1704HTG-10	5.060	16.100	1.570	6.690	1.380	0.317	1.479	0.220	1.160	6.780	0.208	0.581	0.078	0.505	0.058	1.35	1.11	32.6	0.98
1704HTG-12	5.760	15.800	1.760	7.830	1.510	0.325	1.479	0.195	0.988	6.530	0.194	0.572	0.078	0.445	0.073	1.24	1.12	33.7	1.24
1704HTG-14	8.770	30.000	2.740	11.400	2.240	0.444	2.006	0.275	1.360	7.710	0.272	0.721	0.090	0.528	0.076	1.41	1.05	28.3	1.63
Min	5.060	15.800	1.570	6.690	1.380	0.317	1.479	0.195	0.988	6.530	0.194	0.572	0.078	0.445	0.058	1.24	1.03	28.0	0.81
Max	18.500	62.500	5.300	22.400	5.390	1.233	6.093	0.932	5.020	26.300	0.887	2.240	0.270	1.600	0.228	1.62	1.12	33.7	1.63
Average	10.674	34.563	3.148	13.553	3.165	0.700	3.415	0.523	2.727	15.003	0.492	1.257	0.156	0.937	0.130	1.43	1.06	30.9	1.11