Determination of Provenance and Tectonic Settings of Niger Delta Clastic Facies Using Well-Y, Onshore Delta State, Nigeria

Table 6

REE chondrite normalized elemental ratios used in analyzing the provenance of the sediments.

Samples	Lithology	Eu/Eu^*	La/Yb	Ce/Ce^*	Gd/Yb	Zr/TiO2	ΣLREE	ΣHREE	ΣL/ΣH	La/Y	La/V
1160–1180	Sand	0.48	5.46	1.02	2.56	0.04	6.0	2.2	2.8	2.70	2.70
1560–1580	Sand	0.00	5.30	1.03	2.25	0.03	5.8	1.9	3.1	2.89	0.74
1960–1980	Sand	0.81	4.02	1.00	2.05	0.04	6.1	2.8	2.2	2.00	0.66
2960–2980	Sand	0.83	3.02	1.01	1.65	0.03	7.4	4.7	1.6	2.35	0.44
3960–3980	Sand	0.79	2.26	1.01	1.43	0.02	8.8	6.8	1.3	2.05	0.46
4560–4580	Sand	0.78	2.29	1.01	1.47	0.02	8.8	6.9	1.3	2.23	0.45
5460–5480	Shale	0.87	3.28	1.02	1.87	0.03	6.4	3.3	1.9	1.86	0.28
5760–5780	Shale	0.86	2.37	1.04	1.61	0.02	6.8	4.9	1.4	1.68	0.14
6160–6180	Shale	0.79	2.20	1.03	1.53	0.03	8.6	6.8	1.3	1.56	0.33
7060–7080	Sand	0.85	2.53	1.06	1.81	0.03	6.8	4.3	1.6	1.05	0.31
7260–7280	Sand	0.90	2.60	1.12	1.81	0.03	5.8	3.4	1.7	0.85	0.14
7560–7580	Sand	0.91	2.93	1.08	2.17	0.02	6.3	4.0	1.6	1.07	0.18
7760–7780	Shale	0.83	2.55	1.05	1.70	0.02	8.1	5.6	1.4	1.50	0.32
7960–7980	Shale	0.92	2.84	1.07	1.93	0.02	6.1	3.4	1.8	1.11	0.19
8060–8080	Shale	0.94	3.86	1.06	2.21	0.03	6.5	3.2	2.0	1.65	0.37
8160–8180	Sand	0.83	2.81	1.02	1.71	0.03	7.8	5.0	1.6	1.99	0.69
8560–8580	Sand	0.92	3.51	1.03	2.03	0.02	7.0	3.9	1.8	1.85	0.38
8960–8980	Shale	0.83	2.44	1.02	1.48	0.02	8.6	6.2	1.4	2.26	0.48
10,360–10,380	Shale	0.85	3.10	1.01	1.72	0.03	7.6	4.7	1.6	2.62	0.66
11,060–11,080	Shale	0.74	2.04	1.03	1.37	0.02	9.4	7.8	1.2	1.87	0.40
11,460–11,480	Shale	0.76	1.97	1.03	1.41	0.02	9.2	7.8	1.2	1.48	0.33
Average		0.79	3.02	1.04	1.80	0.03	7.33	4.74	1.70	1.81	0.41