Fachbereich 14 - Geowissenschaften
Institut für Mineralogie
Petrologie, Geochemie und Lagerstättenkunde

Experimental Geochemistry and Petrology

The experimental investigations add to our knowledge of accretion and primordial differentiation processes in planetary bodies as well as to our knowledge of element enrichment processes in the Earth's crust and upper mantle.

On-going projects are:

• Phase relations in the Fe-Ni-Cu-PGE-S system at magmatic temperature
• PGE fractionation pattern in primitive mantle silicates and applications to PGE enrichment processes in massive sulfide ore complexes
• Systematic investigation of the geochemical behavior of Pb and implications to terrestrial core formation scenarios
• Mechanisms of metal-silicate segregation during formation of the Martian core
• Accretion and core formation of terrestrial planets: insights from experimentally determined solubility behavior of siderophile elements in silicate liquids
• Physical and chemical interactions of coexisting silicate and metal sulfide liquids
• Determination of pre-eruptive conditions in volcano magma chambers
• Generation of plagiogranitic rocks from MORB source magma
• Development of high-pressure-high-temperature facilities (CSPV and IHPV) with possibility to control fO₂ and aH₂O

Drittmittelgeber:

Deutsche Forschungsgemeinschaft, Gesellschaft zur Förderung der Westfälischen-Wilhelms Universität zu Münster e.V.

Beteiligte Wissenschaftler:

M. Lagos Prof. Dr. C. Ballhaus, Dr. J. Berndt, C. Bockrath, Dr. A. Holzheid, Dr. S. Mateev

Veröffentlichungen:

Ballhaus, C., Tredoux, M. und Spath, A. (2001) Phase relations in the Fe-Ni-Cu-PGE-S system at magmatic temperature and application to massive sulphide ores of the Sudbury Igneous Complex. Journal of Petrology 42, 1911-1926.

Berndt, J., Holtz, F. und Koepke, J. (2001) Experimental constraints on storage conditions in the chemically zoned magma chamber of the Laacher See volcano. Contributions to Mineralogy and Petrology 140, 469-486.

Dann, J.C., Holzheid, A., Grove, T.L. und McSween, Jr., H.Y. (2001) Phase Equilibria of the Shergotty Meteorite: Constraints on Pre-eruptive Water Contents of Martian Magmas and Fractional Crystallization Under Hydrous Condition. Meteoritics and Planetary Science 36, 792-806.

Holzheid, A. und Lodders, K. (2001) Solubility of Copper in Silicate Melts as Function of Oxygen and Sulfur Fugacity, Temperature, and Silicate Composition. Geochimica et Cosmochimca Acta 65, 1933-1951.

Koepke, J., Berndt, J. und Holtz, F. (2001): Experimental generation of SiO2-rich melts at shallow pressures (200 MPa): Differentiation of water-bearing MORB and partial melting of gabbro. In: Processes in dynamic magmatic systems, J. C. Andersen, ed., Camborne School of Mines, Exeter, 24-27.

Matveev, S., O'Neill, H.St.C., Ballhaus, C., Taylor, W.R. und Green, D.H. (2001) Effect of silica activity on OH-IR spectra of olivine: Implications for low-aSiO2 mantle metasomatism. Journal of Petrology 42, 721-729.

McSween, Jr., H.Y., Grove, T.L., Lentz, R.C.F., Dann, J.C., Holzheid, A., Riciputi, L.R. und Ryan, J.G. (2001) Geochemical evidence for magmatic water within Mars from pyroxenes in the Shergotty meteorite. Nature, 487-490.

Berndt, J., Liebske, C., Holtz, F., Freise,M., Nowak, M., Ziegenbein, D., Hurkuck, W. und Koepke, J. (2002) A combined rapid-quench and H2-membrane setup for internally heated pressure vessels: Description and application for water solubility in basaltic melts. American Mineralogist 87, 1717-1726.

Holzheid, A. und Grove, T.L. (2002) Sulfide saturation limits in silicate melts and their im pli ca tions to core formation scenarios for terrestrial planets. American Mineralogist 87, 227-237.

Matveev, S. und Ballhaus, C. (2002) Role of water in the origin of podiform chromitite deposits. Earth and Planetary Science Letters 203, 235-243.