Swiss Journal of Geosciences

Table 3 Composition of rock and minerals of Qz-monzodiorite in the open hole section of Basel-1

From: The deep Basel-1 geothermal well: an attempt assessing the predrilling hydraulic and hydrochemical conditions in the basement of the Upper Rhine Graben

	Rock	Plag	Kfs	Ab^b	Bt	Hbl	Chl	Pump	Prh	Ms
SiO₂	63.32	60.43	64.09	66.12	36.95	50.41	28.86	37.70	43.66	48.05
TiO₂	0.77				2.71	0.42	0.14	0.13	–	0.02
Al₂O₃	17.34	25.45	18.49	22.05	14.40	4.07	16.06	26.43	24.26	37.58
FeO^a	4.12	0.08			20.65	15.66	25.73	3.56	0.13	0.60
MnO	0.07				0.28	0.48	0.36	0.05	–	0.05
MgO	2.30				11.62	13.49	16.08	2.04	–	0.21
CaO	4.23	7.21	0.01	1.99	0.36	12.83	0.16	24.40	28.30	0.07
Na₂O	3.99	7.51	0.37	10.08	0.11	0.58	–	0.09	0.08	0.20
K₂O	3.24	0.27	16.47	0.52	8.89	0.33	–	0.05	0.02	10.90
F					0.63	0.41	0.12	0.28	0.02	0.03
Total					96.60	98.68	87.51	94.73	96.47	97.71
−O≡F					0.27	0.17	0.05	0.12	0.01	0.01
total	99.38	100.95	99.43	100.76	96.33	98.51	87.46	94.61	96.46	97.70
#Ions^c		8	8	8	11	23	14	12	12	11
Si		2.669	2.985	2.883	2.795	7.365	3.050	2.965	2.987	3.096
Ti					0.154	0.046	0.011	0.008	0.000	0.001
Al		1.325	1.015	1.134	1.284	0.701	2.001	2.451	1.957	2.855
Fe		0.003		0.000	1.306	1.913	2.274	0.234	0.007	0.032
Mn					0.018	0.059	0.032	0.003		0.003
Mg					1.310	2.937	2.532	0.239		0.020
Ca		0.341		0.093	0.029	2.009	0.018	2.057	2.075	0.005
Na		0.643	0.033	0.852	0.016	0.164		0.014	0.011	0.025
K		0.015	0.979	0.029	0.858	0.062		0.005	0.002	0.896
Sum		4.996	5.012	4.991	7.770	15.256	9.918	7.976	7.039	6.933
F					0.151	0.189	0.040	0.070	0.004	0.006
X_Fe					0.50	0.39	0.47			0.62
X_An		0.34		0.095
X_Or		0.015	0.967	0.03

Abbreviations of mineral names Whitney and Evans (2010)
^aAll Fe as FeO
^bSecondary albite
^cNumber of ions per number of oxygen listed

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