Dataset
Data Publication
Database of Experimental and Modeling Results on Mo Transport in Sulfur-Rich Hydrothermal Fluids: Implications for Porphyry-Epithermal Cu-Au-Mo Deposits
Kokh, Maria A. | Pokrovski, Gleb | Klemme, Stephan | Schmidt, Christian | Laskar, Clément | Hazemann, Jean-Louis | Testemale, Denis | Kieffer, Isabelle | Proux, Olivier | Lachera, Eric | Müller, Harald | Bazakina, Elena | Moeller, Christoph | Ryaboshapka, Daria | Wilke, Max
GFZ Data Services
(2025)
Descriptions
We have experimentally studied the role of hydrogen sulfide (H2S and HS‒) and the trisulfur radical ion (S3•‒) in the transport of molybdenum by hydrothermal fluids at 300 °C and 500 bar as a function of pH, redox conditions and sulfur concentration. We combined solubility measurements of molybdenite in hydrothermal reactors using fluid quenching or sampling, with in situ synchrotron X-ray absorption spectroscopy experiments and thermodynamic and molecular modeling. Our solubility and spectroscopic dataset is consistent with the formation of tetrathiomolybdate complex, MoS42‒, in reduced, H2S/HS‒-dominated neutral-to-alkaline pH fluids. A mixed complex with both sulfide and trisulfur radical ion as ligands, MoS3(S3)‒, prevails in more oxidized, acidic-to-neutral pH fluids at the sulfide-sulfate coexistence where S3•‒ is abundant. In both complexes, Mo is nominally hexavalent and in a first-shell tetrahedral coordination with sulfur atoms. The derived equilibrium constants of the formal solubility reactions (log10K):
MoS2(s) + 2 H2S0(aq) + 0.5 O2(g) = MoS42‒ + 2 H+ + H2O(liq) ,
MoS2(s) + H2S0(aq) + S3•‒ + 0.5 O2(g) = MoS3(S3)‒ + H2O(liq) ,
at 300 °C and 500 bar are 0.5±0.3 and 14.6±0.5, respectively. The solubility of MoS2(s) predicted using these constants aligns well with Mo concentrations measured in natural fluid inclusions in quartz that record S-rich fluids from porphyry-epithermal systems. In contrast, other types of Mo complexes invoked so far (molybdates, alkali ion pairs, oxy-chlorides or oxysulfides) are negligible at such conditions. Thus, trisulfur radical ion complexes may be important carriers of Mo in hydrothermal fluids and would require further systematic investigation across a wide range of temperature and pressure.
The over-riding goal of the DFG priority programm 2238 - DOME (https://www.uni-potsdam.de/en/spp2238/) is to find solutions to fundamental questions of element transport and mineralization in heterogeneous chemical systems that are complex, dynamic and highly transient. The topic of ore genesis has been studied for a long time from a combined field/laboratory perspective and also experimentally in simplified systems, but rarely have these techniques been integrated in a coordinated way with the third perspective from numerical process modeling. The originality and innovation potential of this priority program lies in the coordination of empirical field-related studies that define the geological/mineralogical framework of natural ore systems with experimental work and numerical models that provide a quantitative understanding of the processes involved.
Keywords
MSL enriched keywords
ore mine
minerals
chemical elements
sulfur
measured property
sulphur
sulfide minerals
molybdenite
silicate minerals
tectosilicates
quartz
hydrogen (H)
hydrogen sulfide
molybdenum
pH
sulphate
MSL vocabulary keywords corresponding to originally assigned keywords
ore mine
Originally assigned keywords
Radical (Chemistry)
Extended X-Ray Absorption Fine Structure
X-Ray Absorption near Edge Structure
Ore Deposit
Hydrothermal Mineralization
Crustal Fluid
Molybdenum Disulfide
GEOCHEMISTRY
ELEMENTS
Metadata
MSL enriched sub domains
geochemistry
Resource Type
Source
Source publisher
| GFZ Data Services |
Creators
| Kokh, Maria A. |
| Personal |
| https://orcid.org/0000-0002-0855-015X |
| University of Münster, Münster, Germany |
| Pokrovski, Gleb |
| Personal |
| https://orcid.org/0000-0003-0906-1689 |
| CNRS - Délégation Midi Pyrénées, Toulouse, France |
| Klemme, Stephan |
| Personal |
| https://orcid.org/0000-0001-7859-9779 |
| University of Münster, Münster, Germany |
| Schmidt, Christian |
| Personal |
| https://orcid.org/0000-0003-1799-5684 |
| GFZ Helmholtz Centre for Geosciences, Potsdam, Germany |
| Laskar, Clément |
| Personal |
| https://orcid.org/0000-0002-3228-6686 |
| KU Leuven, Leuven, Belgium |
| Hazemann, Jean-Louis |
| Personal |
| https://orcid.org/0000-0002-3717-2151 |
| Université Grenoble Alpes, Saint-Martin-d'Hères, France |
| Testemale, Denis |
| Personal |
| https://orcid.org/0000-0003-2204-5464 |
| Université Grenoble Alpes, Saint-Martin-d'Hères, France |
| Kieffer, Isabelle |
| Personal |
| https://orcid.org/0000-0001-5406-6046 |
| European Synchrotron Radiation Facility, Grenoble, France |
| Proux, Olivier |
| Personal |
| https://orcid.org/0000-0003-0385-1815 |
| European Synchrotron Radiation Facility, Grenoble, France |
| Lachera, Eric |
| Personal |
| Institut Néel, Grenoble, France |
| Müller, Harald |
| Personal |
| https://orcid.org/0000-0002-0249-1646 |
| European Synchrotron Radiation Facility, Grenoble, France |
| Bazakina, Elena |
| Personal |
| https://orcid.org/0000-0002-5445-2438 |
| Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany |
| Moeller, Christoph |
| Personal |
| https://orcid.org/0000-0001-7824-8004 |
| GFZ Helmholtz Centre for Geosciences, Potsdam, Germany | University of Potsdam, Potsdam, Germany |
| Ryaboshapka, Daria |
| Personal |
| https://orcid.org/0000-0002-4003-1894 |
| Institut de Recherches sur la Catalyse et l'Environnement de Lyon, Villeurbanne, France |
| Wilke, Max |
| Personal |
| https://orcid.org/0000-0002-1890-3940 |
| University of Potsdam, Potsdam, Germany |
Contributors
| Midi-Pyrenees, CNRS Delegation |
| Personal |
| Munster, Westfalische Wilhelms-Universitat |
| Personal |
| Helmholtz-Zentrum Dresden-Rossendorf |
| Organizational |
| Universite Toulouse III Paul Sabatier |
| Organizational |
| CNES |
| Organizational |
| Alpes, CNRS Delegation |
| Personal |
| Universitat Potsdam Institut fur Geowissenschaften |
| Organizational |
| Institut de Recherche pour le Developpement Delegation Regionale Occitanie |
| Organizational |
| IGS AC at GFZ Helmholtz Centre for Geosciences |
| Organizational |
| Geosciences Environnement Toulouse |
| Organizational |
| Universite Grenoble Alpes |
| Organizational |
| ESRF (European Synchrotron Radiation Facility, Grenoble, France) |
| Organizational |
| Institut NEEL |
| Organizational |
| Institut de Recherches sur la Catalyse et l'Environnement de Lyon |
| Organizational |
| GET laboratory, (Géosciences Environnement Toulouse, Toulouse, France) |
| Organizational |
| Géosciences Environnement Toulouse, Toulouse, France |
| Kokh, Maria |
| Personal |
| University of Münster, Münster, Germany |
Citation
Kokh, M. A., Pokrovski, G., Klemme, S., Schmidt, C., Laskar, C., Hazemann, J.-L., Testemale, D., Kieffer, I., Proux, O., Lachera, E., Müller, H., Bazakina, E., Moeller, C., Ryaboshapka, D., & Wilke, M. (2025). Database of Experimental and Modeling Results on Mo Transport in Sulfur-Rich Hydrothermal Fluids: Implications for Porphyry-Epithermal Cu-Au-Mo Deposits [Dataset]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.D.2025.002
References
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Dates
| Issued | 2025 |
| Updated | 2026-08-24 |
Language
- no language entry found -
Funding References
| Funder Name | Agence Nationale de la Recherche |
| Funder Identifier | https://doi.org/10.13039/501100001665 |
| Award Number | ANR-16-CE31-0017 |
| Award Title | DESY-CMWS-Early Science Project |
| Funder Name | Institut Carnot ISIFoR |
| Funder Identifier | https://doi.org/10.13039/501100001659 |
| Award Number | OrPet |
| Funder Name | Institut Carnot ISIFoR |
| Funder Identifier | https://doi.org/10.13039/501100004794 |
| Award Number | AsCOCrit |
| Award Title | MITI interdisciplinary program Conditions Extremes 2024 |
| Funder Name | Centre National de la Recherche Scientifique |
| Funder Identifier | https://doi.org/10.13039/501100004794 |
| Award Number | PtS3 |
| Award Title | MITI interdisciplinary programs MetalloMix 2021 |
| Funder Name | Centre National de la Recherche Scientifique |
| Funder Identifier | https://doi.org/10.13039/501100004794 |
| Award Number | ExtremeS |
| Award Title | Conditions Extremes 2024 |
| Funder Name | Deutsche Forschungsgemeinschaft |
| Funder Identifier | https://doi.org/10.13039/501100001659 |
| Award Number | WI 2000/25-1 |
| Funder Name | Deutsche Forschungsgemeinschaft |
| Funder Identifier | https://doi.org/10.13039/501100001659 |
| Award Number | KL 1368/13-1 |
| Funder Name | Deutsche Forschungsgemeinschaft |
| Funder Identifier | https://doi.org/10.13039/501100001659 |
| Award Number | SCHM 2415/6-1 |
| Funder Name | European Synchrotron Radiation Facility |
| Funder Identifier | https://doi.org/10.13039/501100001671 |
| Award Number | ESRF ES-1050 |
| Funder Name | European Synchrotron Radiation Facility |
| Funder Identifier | https://doi.org/10.13039/501100001671 |
| Award Number | ESRF ES-1278 |
| Funder Name | Agence Nationale de la Recherche |
| Funder Identifier | https://doi.org/10.13039/501100001665 |
| Award Number | PlanEx |
| Award Title | “grand emprunt” EquipEx |
| Funder Name | Agence Nationale de la Recherche |
| Funder Identifier | https://doi.org/10.13039/501100001665 |
| Award Number | ANR-11-EQPX-36 |
| Award Title | “grand emprunt” EquipEx |
| Funder Name | Deutsches Elektronen-Synchrotron |
| Funder Identifier | https://doi.org/10.13039/501100001647 |
| Award Title | DESY-CMWS-Early Science Project |
Rights
| Name | Creative Commons Attribution 4.0 International |
| URI | https://creativecommons.org/licenses/by/4.0/legalcode |
| Identifier | cc-by-4.0 |
| Identifier Scheme | SPDX |
| Scheme URI | https://spdx.org/licenses/ |
| Name | Open access |
| URI | http://purl.org/coar/access_right/c_abf2 |
| Identifier | c_abf2 |
| Identifier Scheme | COAR Access Rights |
| Scheme URI | http://purl.org/coar/access_right/ |
Locations
- no geo-locations found -