Table 2.

Major and trace elements in studied geophagic samples (in mg/kg)

	DRI-01	DRI-02	DRI-03	DRI-04	GAM-01	GAM-02	GAM-03	GAM-04	GAM-05	TAU-01	TAU-02	TAU-03	Average
Al	6 456	59 694	88 271	89 858	75 729	60 593	80 597	80 650	69 854	118 488	41 172	131 665	75252
Ca	47 956	20 512	14 223	13 008	4 646	15 795	22 084	20 083	40 095	2 787	5 646	1 286	17343
Fe	17 555	76 025	56 651	61 407	41 195	47 979	67 702	76 235	58 470	54 343	184 921	60 638	66927
K	ND	2 075	5 977	7 720	16 603	12 784	8 966	5 728	8 883	30 965	29 304	34 036	14822
Mg	190 913	75 098	26 480	26 842	19 966	10 194	16 347	64 361	24 369	6 997	18 639	3 800	40333
Na	ND	2 893	6 899	7 493	3 561	4 600	4 525	16 840	20,030	5 490	ND	5 416	7774
Si	101 681	240 389	266 008	256 424	287 139	317 199	260 070	232 020	254 367	264 465	239 454	253 899	247760
As	0.32	0.33	0.57	0.78	1.55	1.57	1.74	0.36	1.84	4.37	2.52	2.81	1.56
Cr	135	357	168	146	25.9	34.87	98.72	146	35.85	25.02	56.18	26.52	105
Co	5.48	15.52	16.02	14.61	8.58	6.91	16.05	11.33	11.72	3.89	4.08	4.01	9.85
Cu	2.05	11.98	10.87	11.54	14.87	16.35	26.01	38.52	18.06	11.67	2.21	8.51	14.4
Pb	0.18	0.59	2.02	2.55	2.68	2.62	2.64	0.95	2.65	2.15	1.1	2.02	1.85
Mn	100	345	333	351	441	265	363	143	533	33.52	119	58.05	257
Ni	42.6	77.7	54.74	52.25	70.89	18.94	42.11	35.53	20.71	17.55	22.73	30.65	40.5
Zn	8	13.32	13.93	14.07	65.6	65.08	7.53	19.92	14.9	16.28	2.5	21.03	21.8

ND-not detected