Linear Correlation of Ba and Eu Contents by Hydrothermal Activities: A Case Study in the Hetang Formation, South China

Table 2

Concentrations of Ba and selected REE elements of mudrock, chert, and carbonate samples in Batch 1.

Sample	Depth (m)	Petrology	Ba	Sm	Eu	Gd	Eu/Eu
WN-1	820.60	Chert	2326.83	2.00	0.87	2.02	2.04
WN-2	820.50	Chert	1645.36	1.62	0.76	2.12	1.87
WN-3	820.30	Chert	11326.82	1.44	2.99	2.30	7.33
WN-4	819.10	Siliceous dolomite	88.55	1.03	0.20	1.00	0.93
WN-5	818.70	Chert	17987.58	1.97	4.31	2.14	9.81
WN-6	817.00	Siliceous dolomite	162.34	1.01	0.19	0.90	0.95
WN-7	810.80	Siliceous dolomite	172.38	0.88	0.17	0.88	0.91
WN-8	808.60	Siliceous dolomite	312.00	1.18	0.16	0.93	0.71
WN-9	805.00	Siliceous dolomite	326.92	2.68	0.45	2.38	0.85
WN-10	800.80	Siliceous dolomite	76.67	0.96	0.19	0.85	0.99
WN-11	797.30	Carbonaceous mudrock	11742.34	1.51	2.97	1.96	7.96
WN-12	796.00	Carbonaceous mudrock	4495.63	1.47	1.46	1.81	4.13
WN-13	794.80	Chert	2237.81	0.20	0.68	0.24	14.17
WN-14	790.60	Siliceous mudrock	8684.80	3.38	2.44	4.05	3.05
WN-15	785.50	Chert	5499.63	3.28	1.77	4.15	2.22
WN-16	780.90	Carbonaceous mudrock	3375.06	3.08	1.36	3.47	1.93
WN-17	775.60	Carbonaceous mudrock	20386.00	10.84	6.22	11.58	2.60
WN-18	775.50	Carbonaceous mudrock	1715.44	2.58	0.98	2.97	1.65
WN-19	774.70	Carbonaceous mudrock	17695.16	4.73	4.75	4.59	4.79
WN-20	772.90	Carbonaceous mudrock	5655.41	6.89	2.59	7.28	1.71
WN-21	771.00	Carbonaceous mudrock	4387.75	11.94	3.40	16.15	1.12
WN-22	770.30	Carbonaceous mudrock	7061.81	5.79	2.79	6.23	2.17
WN-23	767.30	Carbonaceous mudrock	5763.93	8.53	2.66	10.24	1.32
WN-24	765.10	Carbonaceous mudrock	3570.41	5.61	2.38	7.76	1.65
WN-25	763.30	Dolomitic mudrock	13994.26	4.22	3.83	3.57	4.64
WN-26	761.80	Carbonaceous mudrock	13725.53	3.02	3.55	2.77	5.77
WN-27	760.00	Carbonaceous mudrock	10614.46	3.87	2.81	3.42	3.63
WN-28	759.00	Carbonaceous mudrock	6452.16	3.15	1.93	3.54	2.69
WN-29	755.80	Limestone	153.80	2.50	0.38	1.69	0.86
WN-30	754.80	Chert	2420.48	2.45	1.01	2.35	1.98
WN-31	753.70	Chert	2403.92	2.44	1.06	2.23	2.15
WN-32	751.10	Carbonaceous mudrock	1871.24	3.50	1.14	4.41	1.34
WN-33	749.20	Carbonaceous mudrock	431.57	0.76	0.27	0.84	1.58
WN-34	745.50	Carbonaceous mudrock	2366.46	2.11	0.96	2.85	1.79
WN-35	742.50	Carbonaceous mudrock	3290.43	1.52	1.10	1.82	3.05
WN-36	740.60	Carbonaceous mudrock	1731.86	0.78	0.57	0.79	3.44
WN-37	739.10	Carbonaceous mudrock	961.89	1.03	0.41	1.06	1.82
WN-38	738.00	Carbonaceous mudrock	3582.52	3.61	1.57	3.98	1.94
WN-39	736.00	Carbonaceous mudrock	8760.99	4.04	2.56	4.09	2.95
WN-40	735.40	Carbonaceous mudrock	7485.79	3.55	2.33	3.65	3.03
WN-41	733.40	Carbonaceous mudrock	16004.86	7.76	5.01	8.03	2.97
WN-42	730.00	Carbonaceous mudrock	6234.39	3.59	2.16	3.83	2.73
WN-43	727.80	Carbonaceous mudrock	8528.94	4.01	2.58	4.60	2.79
WN-44	722.80	Carbonaceous mudrock	8981.91	3.93	2.85	4.26	3.26