Petrogenesis and Uranium Mineralization Potential of Granites Hosting the Xiaoshan Deposit in the Lujing Uranium Ore Field, Jiangxi Province

doi:10.19657/j.geoscience.1000-8527.2025.020

Abstract

Abstract:

The South China Block is a significant region for granite-type uranium deposits in China. The Lujing uranium ore field, located on the southwest side of the Taoshan-Zhuguang uranium metallogenic belt, is one of the most important granite-type uranium ore fields in South China. In recent years, the Xiaoshan deposit, a medium-sized uranium deposit, has been newly discovered in the central part of the Lujing uranium ore field. Uranium mineralization in the Xiaoshan deposit is closely related to alkaline metasomatism, with ore bodies hosted in granite. The study of ore-hosting granites in the Xiaoshan deposit, Jiangxi Province, provides key geological evidence for understanding the genesis of Indosinian granites and their uranium metallogenic specialization in South China. For this purpose, this study focuses on the ore-hosting granites of the Xiaoshan uranium deposit. By conducting detailed petrographic observations and geochemical analyses, it explores the genesis, tectonic setting of the granites, and their constraints on uranium mineralization. The research reveals that the ore-hosting granites in the Xiaoshan deposit mainly consist of medium-coarse-grained porphyritic biotite granite and fine-grained two-mica granite, with zircon U-Pb ages of 237.3±1.5 Ma and 236.8±1.6 Ma, respectively, indicating that they are the products of early Indosinian magmatism. Petrographic, geochemical, and zircon Hf isotopic characteristics show that the ore-hosting granites have features of S-type granites, formed in a tectonic setting transitioning from compression to extension. Their source area is mainly Paleoproterozoic metamudstone, resulting from partial melting of crustal materials. Both types of granites in the Xiaoshan deposit are uranium-rich and serve as important uranium source rocks for uranium mineralization in the region.

Key words: Granite-type uranium deposit, zircon U-Pb dating, Hf isotope, petrogenesis, Lujing uranium ore field, Xiaoshan deposit

CLC Number:

LI Furong, PAN Jiayong, ZHONG Fujun, ZENG Renyu, YAN Jie, Huang Di, DANG Feipeng. Petrogenesis and Uranium Mineralization Potential of Granites Hosting the Xiaoshan Deposit in the Lujing Uranium Ore Field, Jiangxi Province[J]. Geoscience, 2025, 39(04): 1039-1058.

Figures/Tables 17

References 84

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测点号	含量(10^-6)		Th/U	同位素比值						同位素年龄(Ma)
测点号	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	2σ	²⁰⁷Pb/ ²³⁵U	2σ	²⁰⁶Pb/ ²³⁸U	2σ	²⁰⁷Pb/ ²⁰⁶Pb	2σ	²⁰⁷Pb/ ²³⁵U	2σ	²⁰⁶Pb/ ²³⁸U	2σ
样品22XSZ08
1	262	644	0.41	0.0465	0.0029	0.2372	0.0152	0.0367	0.0009	20	144	216	12	233	5
2	1349	884	1.53	0.0466	0.0027	0.2432	0.0142	0.0377	0.0009	28	139	221	12	239	5
3	253	209	1.21	0.0549	0.0060	0.2841	0.0335	0.0372	0.0012	409	246	254	26	235	7
4	152	309	0.49	0.0437	0.0047	0.2422	0.0191	0.0381	0.0012	368	106	220	16	241	7
5	446	509	0.88	0.0514	0.0031	0.2686	0.0167	0.0379	0.0009	261	136	242	13	240	6
6^*	243	174	1.39	0.0690	0.0033	1.5691	0.0763	0.1658	0.0047	898	100	958	30	989	26
7	1570	917	1.71	0.0493	0.0026	0.2580	0.0149	0.0380	0.0011	161	126	233	12	240	7
8	381	398	0.96	0.0528	0.0043	0.2734	0.0216	0.0376	0.0008	320	185	245	17	238	5
9	169	343	0.49	0.0522	0.0038	0.2697	0.0195	0.0376	0.0009	295	168	242	16	238	6
10	275	239	1.15	0.0517	0.0055	0.2640	0.0258	0.0362	0.0009	333	246	238	21	229	6
11^*	125	181	0.69	0.1621	0.0067	9.8812	0.4439	0.4406	0.0106	2480	70	2424	41	2353	48
12	173	511	0.34	0.0530	0.0036	0.2758	0.0192	0.0376	0.0010	328	156	247	15	238	6
13	190	837	0.23	0.0535	0.0028	0.2786	0.0159	0.0376	0.0009	350	119	250	13	238	6
14^*	345	1500	0.23	0.0568	0.0026	0.2728	0.0128	0.0347	0.0007	483	97	245	10	220	4
15	147	107	1.37	0.0535	0.0083	0.3188	0.0386	0.0375	0.0015	350	383	281	30	238	10
16	236	923	0.26	0.0595	0.0039	0.3091	0.0205	0.0375	0.0008	587	144	273	16	237	5
17	288	312	0.92	0.0513	0.0042	0.2690	0.0220	0.0376	0.0010	257	189	242	18	238	6
18	345	321	1.07	0.0594	0.0046	0.3141	0.0267	0.0377	0.0011	589	168	277	21	239	7
19^*	53	317	0.17	0.0610	0.0037	0.5652	0.0368	0.0666	0.0020	639	130	455	24	416	12
20	121	722	0.17	0.0520	0.0036	0.2715	0.0182	0.0377	0.0010	283	157	244	15	238	6
21^*	173	546	0.32	0.0631	0.0038	0.4503	0.0412	0.0498	0.0028	711	130	377	29	313	17
样品22XSZ17
1	1083	707	1.53	0.0506	0.0032	0.2580	0.0170	0.0369	0.0009	220	142	233	14	234	6
2	171	416	0.41	0.0477	0.0034	0.2442	0.0183	0.0370	0.0009	83	172	222	15	235	5
3	231	677	0.34	0.0488	0.0034	0.2508	0.0169	0.0375	0.0010	139	156	227	14	238	6
4	661	935	0.71	0.0509	0.0028	0.2576	0.0141	0.0367	0.0007	235	132	233	11	232	4
5	306	1508	0.20	0.0475	0.0038	0.2640	0.0156	0.0373	0.0013	72	181	238	12	236	8
6	691	813	0.85	0.0505	0.0028	0.2618	0.0164	0.0375	0.0010	220	130	236	13	237	6
7	123	107	1.16	0.0505	0.0069	0.3028	0.0334	0.0381	0.0013	217	289	269	26	241	8
8	310	394	0.79	0.0479	0.0036	0.2498	0.0189	0.0380	0.0011	100	157	226	15	240	7
9	509	867	0.59	0.0501	0.0030	0.2624	0.0168	0.0377	0.0010	211	145	237	13	239	6
10	938	740	1.27	0.0523	0.0030	0.2649	0.0153	0.0366	0.0008	298	136	239	12	232	5
11	352	777	0.45	0.0521	0.0028	0.2774	0.0163	0.0384	0.0012	287	122	249	13	243	7
12	278	1354	0.21	0.0543	0.0068	0.2773	0.0334	0.0371	0.0007	389	282	248	27	235	5
13	185	399	0.46	0.0505	0.0052	0.2842	0.0257	0.0382	0.0012	217	226	254	20	242	7
14^*	310	692	0.45	0.0704	0.0026	1.1543	0.0490	0.1182	0.0026	939	76	779	23	720	15
15	365	488	0.75	0.0487	0.0034	0.2529	0.0175	0.0378	0.0009	132	156	229	14	239	6
16	1183	1094	1.08	0.0507	0.0032	0.2630	0.0170	0.0376	0.0010	233	148	237	14	238	6
17	354	2406	0.15	0.0508	0.0023	0.2636	0.0133	0.0373	0.0009	232	110	238	11	236	5
18	558	438	1.27	0.0499	0.0038	0.2553	0.0192	0.0372	0.0011	191	-17	231	16	235	7
19	538	325	1.65	0.0541	0.0045	0.2837	0.0258	0.0374	0.0011	376	189	254	20	237	7
20	1153	1160	0.99	0.0481	0.0030	0.2539	0.0152	0.0379	0.0010	106	137	230	12	240	6
21	1071	1206	0.89	0.0489	0.0026	0.2619	0.0146	0.0386	0.0010	143	126	236	12	244	6
22^*	332	365	0.91	0.0684	0.0035	1.4895	0.0837	0.1561	0.0041	880	107	926	34	935	23

测点号	含量(10^-6)		Th/U	同位素比值						同位素年龄(Ma)
测点号	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	2σ	²⁰⁷Pb/ ²³⁵U	2σ	²⁰⁶Pb/ ²³⁸U	2σ	²⁰⁷Pb/ ²⁰⁶Pb	2σ	²⁰⁷Pb/ ²³⁵U	2σ	²⁰⁶Pb/ ²³⁸U	2σ
样品22XSZ08
1	262	644	0.41	0.0465	0.0029	0.2372	0.0152	0.0367	0.0009	20	144	216	12	233	5
2	1349	884	1.53	0.0466	0.0027	0.2432	0.0142	0.0377	0.0009	28	139	221	12	239	5
3	253	209	1.21	0.0549	0.0060	0.2841	0.0335	0.0372	0.0012	409	246	254	26	235	7
4	152	309	0.49	0.0437	0.0047	0.2422	0.0191	0.0381	0.0012	368	106	220	16	241	7
5	446	509	0.88	0.0514	0.0031	0.2686	0.0167	0.0379	0.0009	261	136	242	13	240	6
6^*	243	174	1.39	0.0690	0.0033	1.5691	0.0763	0.1658	0.0047	898	100	958	30	989	26
7	1570	917	1.71	0.0493	0.0026	0.2580	0.0149	0.0380	0.0011	161	126	233	12	240	7
8	381	398	0.96	0.0528	0.0043	0.2734	0.0216	0.0376	0.0008	320	185	245	17	238	5
9	169	343	0.49	0.0522	0.0038	0.2697	0.0195	0.0376	0.0009	295	168	242	16	238	6
10	275	239	1.15	0.0517	0.0055	0.2640	0.0258	0.0362	0.0009	333	246	238	21	229	6
11^*	125	181	0.69	0.1621	0.0067	9.8812	0.4439	0.4406	0.0106	2480	70	2424	41	2353	48
12	173	511	0.34	0.0530	0.0036	0.2758	0.0192	0.0376	0.0010	328	156	247	15	238	6
13	190	837	0.23	0.0535	0.0028	0.2786	0.0159	0.0376	0.0009	350	119	250	13	238	6
14^*	345	1500	0.23	0.0568	0.0026	0.2728	0.0128	0.0347	0.0007	483	97	245	10	220	4
15	147	107	1.37	0.0535	0.0083	0.3188	0.0386	0.0375	0.0015	350	383	281	30	238	10
16	236	923	0.26	0.0595	0.0039	0.3091	0.0205	0.0375	0.0008	587	144	273	16	237	5
17	288	312	0.92	0.0513	0.0042	0.2690	0.0220	0.0376	0.0010	257	189	242	18	238	6
18	345	321	1.07	0.0594	0.0046	0.3141	0.0267	0.0377	0.0011	589	168	277	21	239	7
19^*	53	317	0.17	0.0610	0.0037	0.5652	0.0368	0.0666	0.0020	639	130	455	24	416	12
20	121	722	0.17	0.0520	0.0036	0.2715	0.0182	0.0377	0.0010	283	157	244	15	238	6
21^*	173	546	0.32	0.0631	0.0038	0.4503	0.0412	0.0498	0.0028	711	130	377	29	313	17
样品22XSZ17
1	1083	707	1.53	0.0506	0.0032	0.2580	0.0170	0.0369	0.0009	220	142	233	14	234	6
2	171	416	0.41	0.0477	0.0034	0.2442	0.0183	0.0370	0.0009	83	172	222	15	235	5
3	231	677	0.34	0.0488	0.0034	0.2508	0.0169	0.0375	0.0010	139	156	227	14	238	6
4	661	935	0.71	0.0509	0.0028	0.2576	0.0141	0.0367	0.0007	235	132	233	11	232	4
5	306	1508	0.20	0.0475	0.0038	0.2640	0.0156	0.0373	0.0013	72	181	238	12	236	8
6	691	813	0.85	0.0505	0.0028	0.2618	0.0164	0.0375	0.0010	220	130	236	13	237	6
7	123	107	1.16	0.0505	0.0069	0.3028	0.0334	0.0381	0.0013	217	289	269	26	241	8
8	310	394	0.79	0.0479	0.0036	0.2498	0.0189	0.0380	0.0011	100	157	226	15	240	7
9	509	867	0.59	0.0501	0.0030	0.2624	0.0168	0.0377	0.0010	211	145	237	13	239	6
10	938	740	1.27	0.0523	0.0030	0.2649	0.0153	0.0366	0.0008	298	136	239	12	232	5
11	352	777	0.45	0.0521	0.0028	0.2774	0.0163	0.0384	0.0012	287	122	249	13	243	7
12	278	1354	0.21	0.0543	0.0068	0.2773	0.0334	0.0371	0.0007	389	282	248	27	235	5
13	185	399	0.46	0.0505	0.0052	0.2842	0.0257	0.0382	0.0012	217	226	254	20	242	7
14^*	310	692	0.45	0.0704	0.0026	1.1543	0.0490	0.1182	0.0026	939	76	779	23	720	15
15	365	488	0.75	0.0487	0.0034	0.2529	0.0175	0.0378	0.0009	132	156	229	14	239	6
16	1183	1094	1.08	0.0507	0.0032	0.2630	0.0170	0.0376	0.0010	233	148	237	14	238	6
17	354	2406	0.15	0.0508	0.0023	0.2636	0.0133	0.0373	0.0009	232	110	238	11	236	5
18	558	438	1.27	0.0499	0.0038	0.2553	0.0192	0.0372	0.0011	191	-17	231	16	235	7
19	538	325	1.65	0.0541	0.0045	0.2837	0.0258	0.0374	0.0011	376	189	254	20	237	7
20	1153	1160	0.99	0.0481	0.0030	0.2539	0.0152	0.0379	0.0010	106	137	230	12	240	6
21	1071	1206	0.89	0.0489	0.0026	0.2619	0.0146	0.0386	0.0010	143	126	236	12	244	6
22^*	332	365	0.91	0.0684	0.0035	1.4895	0.0837	0.1561	0.0041	880	107	926	34	935	23

测点号	¹⁷⁶Yb/¹⁷⁷Hf	2σ	¹⁷⁶Lu/¹⁷⁷Hf	2σ	¹⁷⁶Hf/¹⁷⁷Hf	2σ	(¹⁷⁶Hf/¹⁷⁷Hf)_ini	ε_Hf(t)	2σ	t_DM1 (Ga)	t_DM2 (Ga)
样品22XSZ08
08-1	0.051752	0.002320	0.001343	0.000062	0.282228	0.000015	0.282221855	-14.75	0.54	1.46	2.16
08-3	0.030282	0.000478	0.000755	0.000010	0.282319	0.000016	0.282315972	-11.36	0.56	1.31	1.95
08-5	0.083336	0.003800	0.002476	0.000146	0.282426	0.000022	0.2824144	-7.78	0.78	1.22	1.73
08-7	0.039806	0.001776	0.001082	0.000042	0.282387	0.000014	0.282382336	-8.90	0.49	1.22	1.80
08-8	0.070908	0.001860	0.001748	0.000048	0.282478	0.000016	0.282470115	-5.85	0.55	1.12	1.61
08-9	0.029698	0.000920	0.000792	0.000026	0.282290	0.000017	0.28228637	-12.35	0.61	1.35	2.01
08-12	0.052881	0.000892	0.001395	0.000024	0.282306	0.000015	0.282300182	-11.86	0.53	1.35	1.98
08-13	0.051805	0.001582	0.001466	0.000059	0.282424	0.000017	0.28241717	-7.72	0.59	1.19	1.73
08-14	0.072667	0.001446	0.001817	0.000031	0.282370	0.000016	0.282362723	-10.05	0.58	1.27	1.86
08-20	0.057078	0.002420	0.001622	0.000089	0.282341	0.000015	0.282333367	-10.68	0.54	1.31	1.91
样品22XSZ17
17-1	0.051379	0.001300	0.001575	0.000039	0.282474	0.000022	0.282467009	-6.05	0.79	1.12	1.62
17-2	0.034197	0.000474	0.000904	0.000016	0.282309	0.000015	0.282304734	-11.78	0.53	1.33	1.98
17-4	0.057237	0.001354	0.001501	0.000030	0.282459	0.000016	0.28245258	-6.60	0.58	1.14	1.65
17-5	0.053680	0.000866	0.001422	0.000025	0.282415	0.000014	0.282409118	-8.05	0.49	1.20	1.74
17-6	0.044582	0.001632	0.001305	0.000053	0.282401	0.000018	0.282395303	-8.51	0.62	1.21	1.77
17-8	0.057156	0.002640	0.001541	0.000049	0.282530	0.000015	0.282523369	-3.91	0.52	1.04	1.49
17-10	0.034131	0.001036	0.000915	0.000022	0.282402	0.000017	0.282398128	-8.53	0.59	1.20	1.77
17-12	0.040529	0.000932	0.001094	0.000020	0.282440	0.000017	0.282435599	-7.14	0.59	1.15	1.69
17-16	0.055642	0.001728	0.001475	0.000024	0.282360	0.000017	0.282353732	-9.97	0.60	1.26	1.87
17-18	0.052761	0.002420	0.001563	0.000084	0.282483	0.000022	0.28247562	-5.71	0.79	1.10	1.60

测点号	¹⁷⁶Yb/¹⁷⁷Hf	2σ	¹⁷⁶Lu/¹⁷⁷Hf	2σ	¹⁷⁶Hf/¹⁷⁷Hf	2σ	(¹⁷⁶Hf/¹⁷⁷Hf)_ini	ε_Hf(t)	2σ	t_DM1 (Ga)	t_DM2 (Ga)
样品22XSZ08
08-1	0.051752	0.002320	0.001343	0.000062	0.282228	0.000015	0.282221855	-14.75	0.54	1.46	2.16
08-3	0.030282	0.000478	0.000755	0.000010	0.282319	0.000016	0.282315972	-11.36	0.56	1.31	1.95
08-5	0.083336	0.003800	0.002476	0.000146	0.282426	0.000022	0.2824144	-7.78	0.78	1.22	1.73
08-7	0.039806	0.001776	0.001082	0.000042	0.282387	0.000014	0.282382336	-8.90	0.49	1.22	1.80
08-8	0.070908	0.001860	0.001748	0.000048	0.282478	0.000016	0.282470115	-5.85	0.55	1.12	1.61
08-9	0.029698	0.000920	0.000792	0.000026	0.282290	0.000017	0.28228637	-12.35	0.61	1.35	2.01
08-12	0.052881	0.000892	0.001395	0.000024	0.282306	0.000015	0.282300182	-11.86	0.53	1.35	1.98
08-13	0.051805	0.001582	0.001466	0.000059	0.282424	0.000017	0.28241717	-7.72	0.59	1.19	1.73
08-14	0.072667	0.001446	0.001817	0.000031	0.282370	0.000016	0.282362723	-10.05	0.58	1.27	1.86
08-20	0.057078	0.002420	0.001622	0.000089	0.282341	0.000015	0.282333367	-10.68	0.54	1.31	1.91
样品22XSZ17
17-1	0.051379	0.001300	0.001575	0.000039	0.282474	0.000022	0.282467009	-6.05	0.79	1.12	1.62
17-2	0.034197	0.000474	0.000904	0.000016	0.282309	0.000015	0.282304734	-11.78	0.53	1.33	1.98
17-4	0.057237	0.001354	0.001501	0.000030	0.282459	0.000016	0.28245258	-6.60	0.58	1.14	1.65
17-5	0.053680	0.000866	0.001422	0.000025	0.282415	0.000014	0.282409118	-8.05	0.49	1.20	1.74
17-6	0.044582	0.001632	0.001305	0.000053	0.282401	0.000018	0.282395303	-8.51	0.62	1.21	1.77
17-8	0.057156	0.002640	0.001541	0.000049	0.282530	0.000015	0.282523369	-3.91	0.52	1.04	1.49
17-10	0.034131	0.001036	0.000915	0.000022	0.282402	0.000017	0.282398128	-8.53	0.59	1.20	1.77
17-12	0.040529	0.000932	0.001094	0.000020	0.282440	0.000017	0.282435599	-7.14	0.59	1.15	1.69
17-16	0.055642	0.001728	0.001475	0.000024	0.282360	0.000017	0.282353732	-9.97	0.60	1.26	1.87
17-18	0.052761	0.002420	0.001563	0.000084	0.282483	0.000022	0.28247562	-5.71	0.79	1.10	1.60

样品号	22XSZ07	22XSZ08	22XSZ19	22XSZ20	22XSZ21	20GX02	20GX06	20GX07		22XSZ17
样品号	中粗粒似斑状黑云母花岗岩									细粒二云母花岗岩
SiO₂	71.76	72.11	71.22	69.56	74.46	74.91	73.30	73.23	69.86		73.50	75.92	73.27
TiO₂	0.18	0.22	0.20	0.24	0.20	0.34	0.33	0.21	0.10		0.07	0.05	0.10
Al₂O₃	14.77	14.78	14.90	14.64	13.10	12.56	14.06	13.78	16.34		14.95	13.13	14.24
Fe₂O₃	1.50	1.71	1.68	1.96	1.70	0.67	0.36	0.38	1.07		1.07	0.79	0.99
MnO	0.04	0.04	0.05	0.08	0.04	0.06	0.05	0.05	0.04		0.04	0.02	0.03
MgO	0.48	0.42	0.61	0.65	0.36	0.46	0.46	0.44	0.42		0.14	0.11	0.25
CaO	0.94	0.74	1.15	2.19	0.70	1.09	1.01	1.05	1.21		0.29	0.23	0.95
Na₂O	2.68	3.33	2.04	1.92	2.82	2.76	2.87	2.84	3.96		3.70	4.12	3.62
K₂O	5.42	4.98	5.17	5.09	4.87	3.90	4.79	4.71	5.11		5.04	4.31	4.78
P₂O₅	0.10	0.15	0.11	0.18	0.13	0.20	0.17	0.14	0.12		0.16	0.11	0.09
FeO	1.08	1.26	1.24	1.48	1.30	1.83	1.69	1.50	0.68		0.78	0.44	0.76
LOI	1.60	1.10	2.39	3.12	1.08	1.58	0.79	1.50	1.76		0.89	0.73	1.09
Rb	485.92	473.00	471.93	508.05	510.93	376.00	386.00	472.00	558.67		675.00	437.00	492.00
Ba	240.18	181.09	226.94	217.02	186.07	207.00	258.00	224.00	32.73		17.90	25.20	26.50
Sr	75.03	67.25	97.47	83.08	52.86	73.30	76.90	65.90	37.27		18.30	24.40	23.30
Pb	46.05	40.93	44.41	45.36	41.46	34.30	45.10	42.50	57.97		31.30	35.10	53.30
U	17.90	27.86	16.59	20.18	18.16	22.40	24.30	18.30	45.39		36.70	33.40	28.90
Zr	115.02	122.59	130.88	133.25	118.03	158.00	121.00	129.00	49.58		51.20	34.80	51.60
Hf	3.62	3.91	4.10	4.17	3.93	4.50	3.50	3.70	2.55		2.99	1.92	2.29
Y	25.44	30.65	31.96	30.99	27.50	38.40	23.80	24.20	21.01		12.70	7.37	14.70
Nb	16.03	20.99	20.78	23.20	19.21	21.90	19.40	19.00	25.83		20.80	12.70	17.40
Ta	3.73	5.04	4.04	4.58	3.51	4.60	3.50	4.50	8.02		5.89	5.16	5.33
Th	18.28	21.80	22.39	25.36	20.46	28.60	24.50	23.60	9.94		5.60	4.62	7.52
Th/U	1.02	0.78	1.35	1.26	1.13	40.50	35.00	34.30	8.32		0.15	0.14	0.26
La	28.40	30.08	32.46	35.43	30.70	85.80	74.50	72.10	18.45		4.85	3.55	8.80
Ce	59.03	62.49	66.81	73.63	63.51	9.74	8.27	8.00	2.12		12.80	7.76	20.00
Pr	6.55	7.01	7.48	8.22	7.16	33.60	28.80	27.50	7.64		1.21	0.91	2.19
Nd	23.33	25.23	26.62	29.47	25.69	7.06	6.24	5.59	2.17		4.24	3.19	7.71
Sm	5.03	5.41	5.78	6.39	5.58	0.55	0.61	0.53	0.11		1.15	0.93	1.87
Eu	0.52	0.47	0.53	0.57	0.50	6.31	5.13	4.70	2.17		0.04	0.05	0.11
Gd	4.07	4.57	5.05	5.59	4.79	0.97	0.76	0.71	0.46		1.23	0.89	1.74
Tb	0.70	0.79	0.86	0.90	0.80	5.97	4.20	4.02	3.07		0.27	0.19	0.34
Dy	4.02	4.80	5.14	5.12	4.44	1.27	0.79	0.76	0.62		1.88	1.27	2.19
Ho	0.79	0.94	0.99	0.96	0.82	3.68	2.12	2.23	1.94		0.38	0.25	0.45
Er	2.32	2.77	2.81	2.65	2.36	0.60	0.31	0.35	0.39		1.17	0.76	1.45
Tm	0.37	0.47	0.45	0.42	0.37	3.89	1.96	2.26	2.97		0.22	0.14	0.27
Yb	2.52	3.20	2.96	2.73	2.50	0.58	0.28	0.35	0.45		1.66	1.09	1.98
Lu	0.38	0.47	0.44	0.40	0.37	0.58	0.28	0.35	0.85		0.24	0.16	0.29
LREE/HREE	8.10	7.25	7.47	8.20	8.09	7.62	9.87	9.62	3.22		3.44	3.45	4.67
δEu	0.35	0.29	0.30	0.29	0.30	0.25	0.33	0.32	0.15		0.11	0.18	0.18
来源	本文	本文	本文	本文	本文	文献[31]	文献[31]	文献[31]	本文		本文	本文	本文