Geology of the Tabakoto gold deposit, Kédougou-Kéniéba Inlier, West African Craton, Mali

Open Access

Table 1

Whole rock major and trace element concentrations for the magmatic intrusions at Tabakoto deposit.

Lithology	Lamprophyre	Metabasalt		Meta-andesite			Metadacite			Metarhyolite

Sample	T14	T5	T2	T8	T12	T3	T1	T6	T4	T13

SiO₂	45.58	49.4	52.6	62.29	61.87	61.4	65.4	69.7	69.14	73.2
TiO₂	0.71	0.47	0.68	0.38	0.54	0.45	0.29	0.21	0.23	0.22
Al₂O₃	12.22	13.73	18.55	15.25	14.8	12.25	12.95	13.1	15.08	13.15
CaO	7.35	3.45	3.91	3.05	4.25	2.91	3.77	3.1	2.57	1.63
Cr₂O₃	0.07	0.02	0.021	0.04	0.04	0.02	0.01	0.01	0.03	0.01
Fe₂O₃	8.74	16.63	7.09	3.85	4.99	5.71	5.76	4.59	1.79	2.99
K₂O	2.64	0.06	3.41	1.99	2.46	6.03	0.36	0.14	2.19	0.18
MgO	7.88	1.56	2.83	1.8	2.62	1.71	0.87	0.41	0.44	0.72
MnO	0.14	0.04	0.07	0.06	0.07	0.05	0.07	0.04	0.02	0.04
Na₂O	3.08	6.65	5	5.47	4.17	2.87	6.76	7.21	6.43	7.48
P₂O₅	0.26	0.1	0.18	0.14	0.18	<0.01	0.08	0.06	0.06	0.08
L.O.I.	11.43	6.91	6.57	5.84	3.20	4.7	4.07	2.76	1.80	2.01
Total	100.1	99	101	100.2	99.2	98.3	100.4	101.3	99.8	101.8

Ni	115.4	44.3	64	60.8	73.8	50	54	6	68.4	9
Cr	509.1	201.1	150	300.7	306.5	110	60	30	277	40
V	188.4	62	183	74.5	105.2	61	66	28	40.6	26
Co	35.47	86.33	18	9.65	13.98	15	32	25	4.5	5
Cs	22.02	0.34	5.46	1.91	1.27	1.43	0.58	0.24	0.70	0.13
Rb	128.9	1.116	143	58.9	46.3	99.2	11.2	2.5	49.1	3.8
Ba	673.1	15.75	1085	1349	1173	864	119.5	46.2	787	204
Th	4.4	4.36	8.05	5.6	6.85	3.52	5.69	6.29	6.24	5.5
U	1.386	1.175	2.98	2.15	2.16	1.07	2.9	3.03	3.3	2.7
Nb	7.92	5.96	10.6	10.05	9.24	5.1	4	3.5	3.47	3.2
La	27.13	22.99	46.2	31.61	36.15	17	19	16.7	30.4	16.6
Ce	57.91	43.7	91.7	63.8	74.1	36.2	36.1	29.3	62.3	31.7
Pb	8.1	28.17	8	6.42	10.66	321	703	16	6.78	373
Pr	6.92	5.08	10.9	7.27	8.44	4.1	4.09	3.2	5.93	3.38
Sr	792.2	88.56	745	870	707	874	541	293	585	684
Nd	30.47	21.78	44.9	29.1	34.71	16.7	16.6	13.4	21.7	13.4
Zr	120.7	124.9	189	152.5	147.8	81	114	117	110.1	104
Sm	5.89	4.7	7.19	5.2	6.19	2.79	3.15	2.39	2.77	2.17
Eu	1.35	2.42	2.15	1.17	1.41	0.76	1.08	1.18	0.96	0.62
Gd	4.49	3.97	5.23	3.57	4.33	2.77	2.46	2.26	1.97	1.47
Dy	3.5	3.16	3.74	2.51	3.18	1.92	1.57	1.37	0.98	0.7
Ho	0.65	0.55	0.67	0.43	0.57	0.44	0.26	0.29	0.16	0.12
Er	1.68	1.512	2.18	1.26	1.5	1.41	0.78	0.63	0.43	0.39
Y	16.21	14.02	18.9	12.14	15.07	10.5	8.1	7.5	5.07	3.8
Yb	1.64	1.35	1.75	1.24	1.42	0.98	0.62	0.43	0.205	0.26
Lu	0.24	0.16	0.25	0.20	0.22	0.14	0.1	0.05	0.05	0.03
Tb	0.55	0.51	0.68	0.454	0.53	0.34	0.29	0.28	0.18	0.14
Ta	0.43	0.47	0.8	0.702	0.68	0.5	0.6	0.3	0.28	0.3
Mo	9.73	10.65	1	21.1	20.5	1	4	2	21.4	2
Hf	3.14	3.33	5.2	3.95	3.95	2.6	3.7	3.2	3.04	2.8
ΣREE	638	534	949	641	750	377	385	324	518	301
La_N/Yb_N	15.60	16.06	24.90	24.04	24.01	16.36	28.90	36.62	139.85	60.21
La_N/Sm_N	3.29	3.50	4.59	4.35	4.18	4.36	4.31	5	7.85	5.47
Gd_N/Yb_N	2.61	2.81	2.85	2.75	2.91	2.70	3.79	5.02	9.18	5.40
La_N/Nd_N	1.94	2.30	2.24	2.36	2.27	2.22	2.49	2.71	3.05	2.70
Sm_N/Gd_N	1.81	1.63	1.90	2.01	1.97	1.39	1.77	1.46	1.94	2.04
Dy_N/Lu_N	1.76	2.30	1.78	1.53	1.74	1.63	1.87	3.26	2.20	2.77
Eu/Eu*	0.68	1.47	0.90	0.69	0.70	0.73	1.01	1.35	1.05	0.88

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.