Mineralogical and Geochemical Characterization of Gold Bearing Quartz Veins and Soils in Parts of Maru Schist Belt Area, Northwestern Nigeria

Table 5

Some major oxide, trace, and rare elements for concentration of soils.

(a)

Field →	Tuniya	Yar Kaura	Sado	Mayowa	Maru	Atakar	Hanudezoma	Gwar Gawo
Sample number →	S1	S2	S3	S4	S5	S6	S7	S9
Major oxide (wt.%) ↓
Na2O	0.06	0.07	1.67	0.07	0.17	0.42	<0.05	0.29
Fe2O3	2.03	1.35	9.08	11.20	0.85	8.01	2.3	2.55
Trace element (ppm) ↓
Au (ppb)	16	<5	80	266	<5	<5	79	5700
As	127	2	16	22	3	5	121	7
Ba	300	300	800	500	400	300	400	400
Co	10	<5	71	61	<5	34	9	8
Cs	4	<2	<2	7	<2	6	4	2
Hf	16	14	5	7	11	8	10	10
Mo	<5	<5	<5	<5	<5	12	<5	<5
Rb	80	40	<30	110	<30	100	40	50
Sb	1.2	<0.2	1.9	4.2	0.3	0.7	3.1	1.4
Sc	6.6	4.4	36.1	37.1	2.4	11.4	6.4	4.3
Ta	<1	<1	<1	2	1	88	1	1
Th	9.5	7.8	1.1	4.6	5.4	8	8.3	6.4
U	4.5	3.4	<0.5	3.2	2.4	6.4	3.8	3.3
W	19	<4	<4	<4	<4	13	<4	<4
Zn	90	<50	190	250	<50	<50	<50	60
La	40	16	17	36	13	28	22	17
Ce	65	37	55	71	32	89	40	39
Nd	30	15	22	33	8	22	15	7
Sm	4.6	1.8	5.7	8	1.4	3.4	2.7	2.2
Eu	1.4	0.5	1.9	3	0.5	1	0.8	0.6
Tb	<0.5	<0.5	1.2	<0.5	<0.5	<0.5	<0.5	<0.50
Yb	4.2	2.6	5.5	5.2	1.5	2.9	2.9	1.40
Lu	0.59	0.38	0.8	0.73	0.26	0.35	0.44	0.26
ΣREE	145.8	73.28	107.9	156.93	56.66	146.65	83.84	67.46

(b)

Field →	Kadaure	Ferri Ruwa	Dangowa	Soro Kudi	Range		Mean	Standard deviation
					Min	Max
Sample number →	S10	S11	S12	S13
Major oxide (wt.%) ↓
Na2O	0.06	0.17	<0.05	0.22	<0.50	1.67	—	—
Fe2O3	10.4	1.16	3.72	4.12	0.85	11.2	4.73	3.84
Trace element (ppm) ↓
Au (ppb)	2850	<5	27	<5	<5	5700	—	—
As	730	<2	33	5	<2	730	—	—
Ba	1100	600	600	400	300	1100	508.33	239.16
Br	<1	<1	7	9	<1	9	—	—
Co	237	6	12	22	<5	237	—	—
Cs	4	2	5	385	<2	385	34.92	—
Hf	6	13	15	11	5	16	10.50	3.55
Mo	<5	<5	17	<5	<5	17	—	—
Rb	130	70	110	210	<30	210	—	—
Sb	5.5	0.7	2.6	12.7	<0.20	12.7	—	—
Sc	14.8	4.1	10	16.5	2.4	37.1	12.84	11.94
Ta	<1	<1	2	66	<1	88	—	—
Th	14.6	8.6	15.5	7.1	1.1	15.5	8.08	3.95
U	6.1	3	3	3.2	<0.5	6.4	—	—
W	<4	<4	<4	<4	<4	19	—	—
Zn	140	<50	<50	<50	<50	250	—	—
La	116	19	38	21	13	116	31.92	28.03
Ce	137	41	83	45	32	137	61.17	30.44
Nd	37	16	38	14	7	38	21.42	10.79
Sm	8.5	2.2	4.8	3.6	1.4	8.5	4.08	2.34
Eu	2.2	0.7	1.3	1.1	0.5	3	1.25	0.77
Tb	<0.5	<0.5	1.4	<0.5	<0.50	1.4	—	—
Yb	4.2	2.8	4.9	3	1.4	5.5	3.43	1.36
Lu	0.63	0.41	0.69	0.45	0.26	0.8	0.50	0.18
ΣREE	305.53	82.11	170.69	88.15	56.66	305.53	123.75	69.03