Mineralogy, geochemistry, petrography, and depositional environment of Gebel El-Qurn, Early Eocene, West Luxor, South Egypt

Abou El-Anwar, Esmat A.; Mekky, H. S.; Abd El Rahim, S. H.

doi:10.1186/s42269-018-0008-3

Bulletin of the National Research Centre

Table 1 Chemical analysis data of major oxides (%) and trace rare earth elements (ppm), of the studied rocks

From: Mineralogy, geochemistry, petrography, and depositional environment of Gebel El-Qurn, Early Eocene, West Luxor, South Egypt

	1	2	3	4	5	6	7	8	9	10	Mim.	Max.	Average
CaO	50.84	32.21	48.21	51.36	50.84	48.27	51.21	49.51	50.41	38.44	32.21	51.36	47.13
MgO	3.26	1.01	2.11	0.8	3.51	3.85	2.57	1.92	2.1	2.04	0.8	3.85	2.317
SiO₂	2.33	23.74	5.34	3.25	1.25	3.45	4.52	3.55	3.24	18.75	1.25	23.74	6.942
Al₂O₃	0.63	0.81	1.95	0.98	0.51	1.97	1.92	0.95	0.92	0.8	0.51	1.97	1.144
Fe₂O₃	0.76	0.64	0.84	0.78	0.82	0.89	0.74	0.81	0.91	0.85	0.64	0.91	0.804
Na₂O	0.11	0.1	0.21	0.12	0.11	0.15	0.16	0.19	0.18	0.12	0.1	0.21	0.145
K₂O	0.03	0.03	0.02	0.03	0.03	0.03	0.02	0.03	0.02	0.03	0.02	0.03	0.027
P₂O₅	0.22	0.25	0.24	0.26	0.27	0.25	0.3	0.22	0.24	0.25	0.22	0.3	0.25
Cl	0.08	0.09	0.11	0.01	0.09	0.14	0.2	0.15	0.15	0.11	0.01	0.2	0.113
LOI	41.6	41.02	41.11	41.91	41.82	40.97	38.74	42.51	41.65	38.57	38.57	42.51	40.99
Ti	60	77	65	70	62	75	55	88	50	80	50	88	68
Sr	445	510	400	470	520	490	460	510	500	520	400	520	483
Sc	30	35	25	24	20	19	29	28	32	22	19	35	26.4
V	24.5	29	35	28	26	30	19	22.5	23.4	24.3	19	35	26.17
Cr	34.6	35	38	37	36.4	40	23.8	37	34.5	33.8	23.8	40	35.01
Mn	50.2	52	48	55	59	58	60	55.4	36.5	49.7	36.5	60	52.38
Co	0.4	0.5	0.3	0.6	0.4	0.8	0.7	0.5	0.4	0.3	0.3	0.8	0.49
Ni	10.8	11.5	12	14.2	11.5	15.1	14.2	13.4	12.7	13.7	10.8	15.1	12.91
Cu	5.8	6.1	6.5	5.8	5.9	4.9	6.2	7.1	6.8	6.9	4.9	7.1	6.2
Zn	54.4	57.4	55.3	60.2	62.3	59	58.1	57.5	61.5	62.4	54.4	62.4	58.81
Ga	0.5	0.4	0.4	0.3	0.5	0.5	0.06	0.03	0.04	0.05	0.03	0.5	0.278
As	0.8	0.7	0.6	0.5	0.5	0.6	0.3	0.4	0.7	0.8	0.3	0.8	0.59
Se	0.6	0.04	0.05	0.06	0.06	0.08	0.07	0.06	0.05	0.06	0.04	0.6	0.113
Br	1.5	1.3	1.5	2.1	2.4	1.9	1.6	1.5	2.2	1.8	1.3	2.4	1.78
Mo	2	3	2.4	1.8	2.5	2.7	3	3.5	3.8	3.8	1.8	3.8	2.85
Y	0.8	0.9	0.7	0.8	0.6	0.9	0.8	0.6	0.8	0.8	0.6	0.9	0.77
Zr	5.5	7.4	6.8	5.9	5.8	6.5	7	7.5	6.4	5.9	5.5	7.5	6.47
Ag	0.1	0.1	0.1	0.1	0.2	0.1	0.1	0.2	0.1	0.1	0.1	0.2	0.12
As	0.8	0.9	1.1	0.9	0.7	0.8	0.7	1.2	1.3	0.9	0.7	1.3	0.93
Sn	0.4	0.4	0.3	0.5	0.3	0.4	0.4	0.5	0.5	0.3	0.3	0.5	0.4
Sb	1.5	1.3	1.3	1.5	2.1	1.9	1.8	1.7	1.8	1.9	1.3	2.1	1.68
I	11.8	12.5	12	13.1	11.8	12.8	13.1	12.7	11.9	11.5	11.5	13.1	12.32
Cs	16.8	17.3	17.5	15.4	16.8	18.1	17.3	19.1	16.7	16.5	15.4	19.1	17.15
Ba	70.2	75	78	80	79	82	75.4	77.3	78.6	75.2	70.2	82	77.07
La	11.2	12	11.7	12.4	13.1	12.3	14.2	12.5	12.7	11.4	11.2	14.2	12.35
Nd	4.3	4.1	5.2	5.3	4.9	4.3	3.9	3.7	4.6	4.9	3.7	5.3	4.52
Sm	5.4	5.9	5.7	5.2	6.7	4.9	5.6	6.5	4.8	5.6	4.8	6.7	5.63
Hf	1.9	1.1	1.8	2.1	1.9	1.9	1.5	2.4	2.4	2.3	1.1	2.4	1.93
W	2.2	2.5	3.1	2.4	1.9	3.2	2.8	2.7	2.5	2.8	1.9	3.2	2.61
Bi	0.8	0.8	0.6	0.7	0.5	0.9	0.4	0.4	0.6	0.8	0.4	0.9	0.65
U	4	4	5	4.5	5.2	4.9	5.9	4.8	4.5	5	4	5.9	4.78
Th	5.8	5.9	6.5	6.1	5.8	5.5	6.3	6.4	6.6	6.2	5.5	6.6	6.11
ΣREE	870.00	977.14	853.95	933.56	972.56	964.38	894.93	992.2	926.19	975.61	764.3	1050.5	936.35
Nor. Calc.	90.74	57.49	86.05	91.67	90.74	86.15	91.40	88.37	89.97	68.61	57.49	91.67	84.12
Nor.Dolo.	6.82	2.11	4.41	1.67	7.34	8.05	5.37	4.02	4.39	4.27	1.67	8.05	4.85
LREEs	21.4	22.4	23	23.2	25.2	22	23.76	22.73	22.14	21.95	19.73	26.7	22.78
HREEs	6.2	7	7.2	7.9	6.4	6.3	7.5	7.7	5.6	4.7	4.5	8	6.65
REE/HREES	3.45	3.20	3.19	2.94	3.94	3.49	3.17	2.95	3.95	4.67	4.38	3.34	3.43
Sr/Ca	0.00098	0.00155	0.00104	0.00019	0.00098	0.00104	0.00088	0.00101	0.00099	0.00117	0.00031	0.00097	0.00098

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