Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

Thien, Bruno M. J.; Kosakowski, Georg; Kulik, Dmitrii A.

doi:10.1186/s40517-015-0031-7

Geothermal Energy

Science – Society – Technology

Table 5 Selected minerals and their thermodynamic data

From: Differential alteration of basaltic lava flows and hyaloclastites in Icelandic hydrothermal systems

Mineral	Formula	∆G _f° (J/mol)	S° (J/mol/K)	a (J/mol/K)	b (J/mol/K)	c (J/mol/K)	V° (J/bar)	Reference
Albite	Na(AlSi₃)O₈	−3708313	207.15	342.59	0.0149	−2.10E + 07	10.025	S98
Low-albite	Na(AlSi₃)O₈	−3708313	207.15	258.15	0.0582	−6.28E + 06	10.007	S98
Analcime	NaAlSi₂O₆(H₂O)	−3078890	231.97	132.50	0.2555	−2.13E − 05	9.710	Neuhoff (2000)
Anhydrite	CaSO₄	−1321830	106.69	70.21	0.0987	0.00E + 00	4.594	S98
Anorthite	Ca(Al₂Si₂)O₈	−3991862	205.43	264.89	0.0619	−6.46E + 06	10.079	S98
Boehmite	AlO(OH)	−908974	48.45	60.40	0.0176	0.00E + 00	1.954	S98
Calcite	CaCO₃	−1128810	92.50	104.90	0.0050	−9.51E − 05	3.693	Holland and Powell (1998)
Ca-chabazite	Ca(Al₂Si₄)O₁₂(H₂O)₆	−7156380	584.23	564.18	0.9033	−1.59E + 02	24.745	Neuhoff (2000)
Na-chabazite	Na₂(Al₂Si₄)O₁₂(H₂O)₆	−7115170	619.51	591.72	0.9192	−1.59E + 02	24.745	Neuhoff (2000)
Chalcedony	SiO₂	−854691	41.34	46.94	0.0343	−1.13E + 06	2.269	S98
Clinochlore-14A	Mg₅Al(AlSi₃)O₁₀(OH)₈	−8263350	410.50	1161.80	0.0101	−7.66E − 04	20.710	Holland and Powell (1998)
Daphnite-14A	Fe₅Al(AlSi₃)O₁₀(OH)₈	−6535560	545.00	1237.40	0.0014	−3.74E − 04	21.342	Holland and Powell (1998)
Diaspore	AlO(OH)	−913794	35.27	60.40	0.0176	0.00E + 00	1.776	S98
Diospside	CaMg(SiO₃)₂	−3028296	143.09	221.21	0.0328	−6.59E + 06	6.609	S98
Dolomite	CaMg(CO₃)₂	−2161510	156.00	305.89	−0.0049	0.00E + 00	6.439	Holland and Powell (1998)
Enstatite	MgSiO₃	−1459923	67.78	102.72	0.0198	−2.63E + 06	3.128	S98
Epidote	Ca₂Fe\|3\|Al₂Si₃O₁₂(OH)	−6070591	314.97	492.13	0.0536	−1.33E + 07	13.920	S98
Fayalite	Fe₂SiO₄	−1381695	148.32	152.76	0.0392	−2.80E + 06	4.639	S98
Ferrous oxide	FeO	−251446	60.75	50.72	0.0087	−3.14E + 05	1.200	S98
Forsterite	Mg₂SiO₄	−2056704	95.19	149.83	0.0274	−3.56E + 06	4.379	S98
Gibbsite	Al(OH)₃	−1155487	70.08	36.19	0.1908	0.00E + 00	3.196	S98
Grossular	Ca₃Al₂Si₃O₁₂	−6260549	254.68	435.21	0.0712	−1.14E + 07	12.530	S98
Gypsum	CaSO₄(H₂O)₂	−1797763	193.80	91.38	0.3180	0.00E + 00	7.469	S98
Halite	NaCl	−384120	72.13	45.94	0.0163	0.00E + 00	2.702	S98
Hedenbergite	CaFe(SiO₃)₂	−2673568	170.29	229.33	0.0342	−6.28E + 06	6.827	S98
Ca-heulandite	Ca(Al₂Si₇)O₁₈(H₂O)₆	−9,726,320	732.67	742.54	0.0632	−1.43E − 03	31.927	Neuhoff (2000)
Na-heulandite	Na₂(Al₂Si₇)O₁₈(H₂O)₆	−9371886	736.39	722.37	0.0631	−1.40E − 03	31.943	Neuhoff (2000)
Hydromagnesite	Mg₅(OH)₂(CO₃)₄(H₂O)₄	−5864658	541.33	591.87	0.2731	−9.07E + 06	20.880	S98
K-feldspar	K(AlSi₃)O₈	−3746245	213.93	320.57	0.0180	−1.25E + 07	10.887	S98
Kaolinite	Al₂Si₂O₅(OH)₄	−3801720	203.70	436.70	−0.0034	−4.06E − 05	9.952	Holland and Powell (1998)
Laumontite	Ca(Al₂Si₄)O₁₂(H₂O)_4.5	−6800520	483.91	582.22	0.1448	−8.99E − 04	20.755	Neuhoff (2000)
Magnesite	MgCO₃	−1027740	65.10	186.40	0.0000	0.00E + 00	2.802	Holland and Powell (1998)
Magnetite	FeFe\|3\|₂O₄	−1014930	145.73	91.55	0.2017	0.00E + 00	4.452	S98
Marcassite	FeS\|0\|S\|-2\|	−153335	36.82	74.81	0.0055	−1.28E + 06	2.394	Gronvold (1976)
Pargasite	Na(Ca₂Mg₄Al) (Al₂Si₆)O₂₂(OH)₂	−11910710	669.44	861.07	0.1743	−2.10E + 07	27.350	S98
Fe-pargasite	Na(Ca₂Fe₄Al) (Al₂Si₆)O₂₂(OH)₂	−10569566	776.13	893.58	0.1799	−1.98E + 07	27.990	S98
Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂	−5816166	271.96	383.25	0.1582	−8.20E + 06	14.033	S98
Pyrite	FeS\|0\|S\|-2\|	−160218	52.93	74.81	0.0055	−1.28E + 06	2.394	S98
Pyrrhotite	FeS\|-2\|	−100767	60.29	72.80	0.0000	0.00E + 00	1.820	S98
Quartz	SiO₂	−856239	41.34	46.94	0.0343	−1.13E + 06	2.269	S98
Ca-Fe_saponite	Ca_0.19Fe\|2\|_2.62Al_0.38Si_3.24Al_0.76O₁₀(OH)₂	−4777570	429.68	355.41	0.2305	−7.00E + 06	17.925	This study
Ca-Mg_saponite	Ca_0.19 Mg_2.62Al_0.38Si_3.24Al_0.76O10(OH)₂	−5676610	335.99	352.40	0.2199	−8.00E + 06	17.925	This study
Na-Fe_saponite	Na_0.38Fe\|2\|_2.62Al_0.38Si_3.24Al_0.76O₁₀(OH)₂	−4773700	435.46	358.06	0.2346	−7.00E + 06	17.925	This study
Na-Mg_saponite	Na_0.38 Mg_2.62Al_0.38Si_3.24Al_0.76O10(OH)₂	−5674020	346.04	355.05	0.2240	−8.00E + 06	17.925	This study
SiO2-amorphous	SiO₂	−848900	60.00	24.81	0.1975	−9.53E + 06	2.900	S98
Siderite	FeCO₃	−679540	105.02	48.66	0.1121	0.00E + 00	2.938	S98
Sulfur	S\|0\|	0	31.80	14.98	0.0261	0.00E + 00	1.561	S98
Wairakite	Ca(Al₂Si₄)O₁₂(H₂O)₂	−6181576	439.74	420.07	0.1861	−6.87E + 06	18.687	S98
Wollastonite	CaSiO₃	−1544837	82.01	111.46	0.0151	−2.73E + 06	3.993	S98

Thermodynamic parameters of saponites were calculated using the method of Vieillard (2007)
∆G _f° is the standard Gibbs energy of formation, S° is the standard absolute entropy, V° is the molar volume, all taken per mole at 1 bar 25 C; a, b, and c are the empirical coefficients of the heat capacity function Cp ^o(T) = a + bT + c/T. S98 refers to the SUPCRT98 database (Shock et al. 1997)

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