Samples	Li	Be	Sc	V	Cu	Zn	Ga	Se	Rb	Sr	Ag	Cs	Ba	U	Sr/Ba	Cu/Zn
LC-1	20.34	2.97	9.22	136.51	30.23	64.68	17.47	4.63	27.45	91.97	0.22	1.20	484.40	19.42	0.19	0.47
LC-2	106.24	4.98	11.09	197.72	50.45	119.65	25.42	3.66	6.61	2.82	0.67	1.08	57.43	26.38	0.05	0.42
LC-3	80.45	2.02	11.20	150.66	39.05	86.41	18.09	3.56	7.33	4.33	0.65	1.38	71.74	31.23	0.06	0.45
LC-4	63.74	2.07	9.42	150.35	39.58	89.93	20.27	3.47	7.13	4.12	0.46	2.16	107.34	18.24	0.04	0.44
LC-5	53.35	1.88	8.52	135.50	33.42	77.18	17.63	5.30	14.31	8.32	0.35	2.43	180.93	28.85	0.05	0.43
LC-6	46.39	1.74	7.51	117.80	30.00	62.78	19.41	3.06	13.26	4.98	0.35	4.27	140.00	10.35	0.04	0.48
LC-7	102.31	2.50	9.17	149.64	42.47	109.84	25.10	2.07	9.34	2.46	0.58	1.27	48.21	11.53	0.05	0.39
LC-8	55.39	1.87	7.39	127.13	38.05	74.44	17.08	3.83	21.59	28.99	0.33	3.00	280.95	56.57	0.10	0.51
LC-9	50.49	2.32	8.35	142.69	31.03	68.63	21.29	2.82	9.95	3.21	0.41	2.40	81.57	34.40	0.04	0.45
LC-10	113.63	2.69	11.89	170.52	35.98	110.31	30.04	1.04	15.76	2.68	0.70	4.78	37.41	22.71	0.07	0.33
LC-11	101.67	2.29	12.34	160.67	27.24	131.76	25.80	1.67	5.82	2.90	0.82	1.84	60.91	45.54	0.05	0.21
LC-12	80.67	2.66	11.39	149.15	41.61	83.02	19.63	6.33	11.59	10.34	0.56	2.48	200.95	70.25	0.05	0.50
LC-13	95.14	3.83	13.63	181.71	53.16	103.61	21.31	3.10	6.10	3.76	0.83	1.97	76.40	27.64	0.05	0.51
Average	74.60	2.60	10.09	151.54	37.87	90.94	21.43	3.43	12.02	13.14	0.53	2.33	140.63	31.01	0.09	0.42
Min	20.34	1.74	7.39	117.80	27.24	62.78	17.08	1.04	5.82	2.46	0.22	1.08	37.41	10.35	0.07	0.43
Max	113.63	4.98	13.63	197.72	53.16	131.76	30.04	6.33	27.45	91.97	0.83	4.78	484.40	70.25	0.19	0.40
The upper crust	20.00	3.00	13.60	107.00	25.00	71.00	17.00	0.08	112.00	350.00	0.05	4.60	550.00	2.80
Chinese coals	31.80	2.11	4.38	35.10	17.50	41.40	6.55	2.47	9.25	140.00	nd	1.13	159.00	2.43
World coals	10.00	1.20	4.10	22.00	15.00	18.00	5.50	1.00	10.00	120.00	0.09	0.98	150.00	2.90
CC	7.46	2.17	2.46	6.89	2.52	5.05	3.90	3.43	1.20	0.11	5.92	2.38	0.94	10.69