Hansen, Christian T; Lissenberg, C Johan; Kahl, Wolf-Achim; Bach, Wolfgang (2022): Mass balance and comparative thermodynamic reaction path data for batch experiments simulating hydrothermal troctolite alteration at 300 and 400°C (40 MPa) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.949079, In: Hansen, CT et al. (2022): Geochemical data from batch experiments simulating hydrothermal troctolite alteration at 300 and 400°C (40 MPa) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.949080
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Published: 2022-09-27 • DOI registered: 2022-11-18
Keyword(s):
Related to:
Hansen, Christian T; Lissenberg, C Johan; Kahl, Wolf-Achim; Bach, Wolfgang (2022): Hydrothermal troctolite alteration at 300 and 400 °C: Insights from flexible Au-reaction cell batch experimental investigations. American Mineralogist, 107(6), 1100-1115, https://doi.org/10.2138/am-2021-7832
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 222826231: DFG Koselleck project grant BA 1605/10-1
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Comment:
*Exact compositions derived from EMP based WDS analyses were used in the regression algorithm
**Resulting mineral proportions for a reaction turnover of 77.49% (300 °C) and 52.23% (400 °C) by weight - Modelling was conducted at 50 MPa
1Sum of serpentine and chlorite equals the fraction derived by TG
2Molar weight from the 300 °C run was used to calculate the mole equivalent for the model run
3Brucite fraction equals the amount derived by TG plus 1 wt.% dissolved fraction
4Magnetite determined via AGFM
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Rock type | Rock | Hansen, Christian T | Components | ||
| 2 | Lecidea cf. rufofusca | L. cf. rufofusca | Hansen, Christian T | Idealized formula* | ||
| 3 | Comment | Comment | Hansen, Christian T | |||
| 4 | Experiment | Exp | Hansen, Christian T | |||
| 5 | Molar mass | M | g/mol | Hansen, Christian T | * | |
| 6 | Groundmass | gm | % | Hansen, Christian T | X in wt.-% | |
| 7 | Mass | Mass | g | Hansen, Christian T | ||
| 8 | Amount of substance | Subst | mol | Hansen, Christian T | Calculated | |
| 9 | Groundmass | gm | % | Hansen, Christian T | RP X in wt.-%, ** | |
| 10 | Amount of substance | Subst | mol | Hansen, Christian T | Calculated | RP n, ** |
| 11 | Experiment | Exp | Hansen, Christian T | |||
| 12 | Molar mass | M | g/mol | Hansen, Christian T | ||
| 13 | Groundmass | gm | % | Hansen, Christian T | X in wt.-% | |
| 14 | Mass | Mass | g | Hansen, Christian T | ||
| 15 | Amount of substance | Subst | mol | Hansen, Christian T | Calculated | |
| 16 | Groundmass | gm | % | Hansen, Christian T | RP X in wt.-%, ** | |
| 17 | Amount of substance | Subst | mol | Hansen, Christian T | Calculated | RP n, ** |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
189 data points
Data
| 1 Rock (Components) | 2 L. cf. rufofusca (Idealized formula*) | 3 Comment | 4 Exp | 5 M [g/mol] (*) | 6 gm [%] (X in wt.-%) | 7 Mass [g] | 8 Subst [mol] | 9 gm [%] (RP X in wt.-%, **) | 10 Subst [mol] (RP n, **) | 11 Exp | 12 M [g/mol] | 13 gm [%] (X in wt.-%) | 14 Mass [g] | 15 Subst [mol] | 16 gm [%] (RP X in wt.-%, **) | 17 Subst [mol] (RP n, **) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Olivine | Mg2SiO4 | Initial | Experiment at 300 °C and 40 MPa | 146.55 | 77.79 | 12.96 | 0.088400 | 77.79 | 0.088400 | Experiment at 400 °C and 40 MPa | 146.51 | 77.78 | 12.96 | 0.088500 | 77.78 | 0.088500 |
| Plagioclase | CaAl2Si2O8 | Initial | Experiment at 300 °C and 40 MPa | 278.57 | 22.21 | 3.70 | 0.013300 | 22.21 | 0.013300 | Experiment at 400 °C and 40 MPa | 278.39 | 22.22 | 3.70 | 0.013300 | 22.22 | 0.013300 |
| Total | Experiment at 300 °C and 40 MPa | 100.00 | 16.70 | Experiment at 400 °C and 40 MPa | 100.00 | 16.66 | ||||||||||
| Olivine | Mg2SiO4 | Final | Experiment at 300 °C and 40 MPa | 146.55 | 16.25 | 3.01 | 0.020500 | 17.48 | 0.022100 | Experiment at 400 °C and 40 MPa | 146.51 | 45.87 | 8.11 | 0.055400 | 48.55 | 0.058600 |
| Plagioclase | CaAl2Si2O8 | Final | Experiment at 300 °C and 40 MPa | 278.57 | 6.26 | 1.16 | 0.004160 | 5.03 | 0.003340 | Experiment at 400 °C and 40 MPa | 278.39 | 1.87 | 0.33 | 0.001190 | 6.68 | 0.004240 |
| Andradite | Ca3Fe2Si3O12 | Final | Experiment at 300 °C and 40 MPa | 508.17 | 0.15 | 0.03 | 0.000055 | Experiment at 400 °C and 40 MPa | 495.49 | 0.57 | 0.10 | 0.000202 | 0.10 | 0.000035 | ||
| Xonotlite | Ca6Si6O17(OH)2 | Final | Experiment at 300 °C and 40 MPa | 721.15 | 5.82 | 1.08 | 0.001490 | 6.12 | 0.001570 | Experiment at 400 °C and 40 MPa | 718.18 | 2.04 | 0.36 | 0.000501 | ||
| Serpentine1,2 | Mg3Si2O5(OH)4 | Final | Experiment at 300 °C and 40 MPa | 279.63 | 34.41 | 6.37 | 0.022800 | 37.04 | 0.024500 | Experiment at 400 °C and 40 MPa | 4.41 | 0.002790 | ||||
| Chlorite1 | Mg5Al2Si3O10(OH)8 | Final | Experiment at 300 °C and 40 MPa | 568.19 | 30.32 | 5.61 | 0.009880 | 30.36 | 0.009890 | Experiment at 400 °C and 40 MPa | 566.62 | 38.24 | 6.76 | 0.011900 | 29.32 | 0.009150 |
| Brucite3 | Mg(OH)2 | Final | Experiment at 300 °C and 40 MPa | 60.50 | 4.39 | 0.81 | 0.013400 | 0.81 | 0.002470 | Experiment at 400 °C and 40 MPa | ||||||
| Magnetite4 | Fe3O4 | Final | Experiment at 300 °C and 40 MPa | 231.53 | 2.40 | 0.45 | 0.001920 | 3.16 | 0.002520 | Experiment at 400 °C and 40 MPa | 231.53 | 0.06 | 0.01 | 0.000043 | ||
| Grossular | Ca3Al2Si3O12 | Final | Experiment at 300 °C and 40 MPa | Experiment at 400 °C and 40 MPa | 465.50 | 0.51 | 0.09 | 0.000193 | ||||||||
| Diopside | CaMgSi2O6 | Final | Experiment at 300 °C and 40 MPa | Experiment at 400 °C and 40 MPa | 221.37 | 9.28 | 1.64 | 0.007410 | 10.94 | 0.008740 | ||||||
| Total | Final | Experiment at 300 °C and 40 MPa | 99.98 | 18.51 | Experiment at 400 °C and 40 MPa | 98.42 | 17.68 |