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Projects

Kristallisation unter Einfluss der Flotation: neue Wege zur Synthese selbsttragender Zeolith-Membranen

 

Supervisor:

Prof. Dr. J. C. Buhl

Researcher:

Dr. I. Peschke

Duration:

2018-2020

Funded by:

DFG

 

 

Auswirkung der Schneidkanteneigenspannungen auf das Verschleißverhalten PVD-beschichteter Zerspanwerkzeuge

Bild zum Projekt Auswirkung der Schneidkanteneigenspannungen auf das Verschleißverhalten PVD-beschichteter Zerspanwerkzeuge

Supervisor:

Prof. Breidenstein, Bernd (breidenstein@ifw.uni-hannover.de), Prof. Behrens, Harald (h.behrens@mineralogie.uni-hannover.de)

Researcher:

Dipl.-Geow. Marcel Dietrich, m.dietrich@mineralogie.uni-hannover.de

Duration:

2018-2020

Funded by:

DFG

Brief description:

Residual stresses in hard material layers have a large influence on the tool life. Measurement at the cutting edge is not possible with the established methods. Raman spectroscopy shows high potential for this measurement task. The measurement method is calibrated by X-ray diffraction in the scattering vector mode.

 

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Chalcophile elements in Shatsky Rise basalts as potential indicators of the mantle plume origin

 

Supervisor:

Dr. Renat Almeev, Dr. Maxim Portnyagin (GEOMAR, Kiel)

Duration:

1 Year

Funded by:

DFG

 

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Fate of tetravalent uranium under reducing conditions

 

Supervisor:

Prof. Dr. Weyer

Researcher:

Yvonne Röbert, MSc Geow.

Duration:

3 Jahre

Funded by:

durch DFG: DACh-Projekt gemeinsam mit R. Bernier-Latmani (EPFL, CH) und S. Krämer (Wien)

 

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Uranium isotope fractionation: a novel biosignature to identify microbial metabolism on early Earth (UNEARTH)

 

Supervisor:

Prof. Bernier-Latmani (EPFL, CH), Projektpartner: Prof. Weyer

Researcher:

N.N.

Duration:

5 Jahre

Funded by:

durch EU: ERC-consolidator grant

 

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Forearc basalt and boninite lineage: origin and evolution of magmas in the course of subduction initiation, Izu-Bonin Mariana arc

 

Supervisor:

Dr. Renat Almeev, Prof. Dr. Francois Holtz

Researcher:

Stefan Andreas Linsler, MSc Geow.

Duration:

3 Years

Funded by:

DFG

 

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Li isotope fractionation in magmatic systems: Constraints from in-situ delta7Li determinations on magmatic minerals by femtosecond-laser ablation-MC-ICP-MS

 

Supervisor:

Dr. Martin Oeser-Rabe

Researcher:

N.N.

Duration:

3 Jahre

Funded by:

DFG

 

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Tholeiitic basalts: the role of primitive composition on differentiation

 

Supervisor:

Dr. Renat Almeev, Prof. Dr. Francois Holtz

Researcher:

Dr. Renat Almeev

Duration:

3 Years

Funded by:

DFG

 

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Chlorine in amphibole: diffusion and partitioning between amphibole and silicate melt

 

Supervisor:

Prof. Dr. Harald Behrens, Prof. Dr. Francois Holtz, Dr. Chao Zhang

Researcher:

Xiaoyan Li

Duration:

3 Jahre (2016-2019)

 

 

Supply of soluble Fe to ocean surface waters - quantitative approaches from ICDP site Hawaii by determining interface driven Fe transfer from subsurface volcanic rocks

 

Supervisor:

Prof. Dr. Harald Behrens, Prof. Dr. Axel Schippers, PD Dr. Stefan Dultz

Researcher:

Marius Stranghöner

Duration:

2 Jahre (2016-2018)

 

 

Impact of structure and relaxation on fatigue and micromechanical properties of oxide glasses - the role of volatiles and bonding state

 

Supervisor:

Prof. Dr. Harald Behrens, Prof. Dr. Joachim Deubener, Dr. Ralf Müller

Researcher:

Robert Balzer

Duration:

2 Jahre (2016-2019)

 

 

Uranium and Vanadium isotope variations in Archean sediments: Evidence for metal mobilization and enzymatic reduction in an overall anoxic world?

Bild zum Projekt Uranium and Vanadium isotope variations in Archean sediments: Evidence for metal mobilization and enzymatic reduction in an overall anoxic world?

Supervisor:

Dr. Schuth, Prof. Dr. Weyer

Researcher:

Annika Brüske, MSc Geow.

Duration:

3 Jahre

Funded by:

DFG, SPP 1833 - building a habitable earth

 

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Timescales of magmatic evolution as revealed from diffusion-driven Li-Mg-Fe isotopic zoning in magmatic crystals

 

Supervisor:

Dr. Martin Oeser-Rabe

Researcher:

Dr. Martin Oeser-Rabe

Duration:

2 Jahre

Funded by:

Leibniz Universität Hannover "Wege in die Forschung II"

 

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The role of volatiles in the formation of magmatic iron oxide deposits

 

Supervisor:

Dr. Hou Tong

Duration:

2 years

Funded by:

Marie-Curie Research Fellow, Individual Fellowships (European Fellowship)

 

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Experimental study on the production of rhyolites from basaltic sources in the bimodal Snake River Plain-Yellowstone province

Bild zum Projekt Experimental study on the production of rhyolites from basaltic sources in the bimodal Snake River Plain-Yellowstone province

Supervisor:

Dr. Almeev, Dr. Charlier, Dr. Namur, Prof. Dr. Holtz

Researcher:

Dr.Meng Wang

Duration:

2015-2017

Funded by:

DFG

 

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The Origin of Metal and Chondrules in CH and CB Chondrites - Evidence from Fe, Ni and Mg isotopes

 

Supervisor:

Prof. Dr. Weyer, Dr. Jutta Zipfel (Senckenberg Institut, Frankfurt)

Researcher:

Mona Weyrauch, MSc Geow.

Duration:

3 Jahre

Funded by:

DFG, SPP 1385

 

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Kinetics of Li intercalation and de-intercalation in tantalum chalcogenide single crystals

Effect of pressure on transport properties of granular lithium ion conductors

Ongoing measurements of the surface of Mercury by the MESSENGER spacecraft (NASA)

 

Supervisor:

Dr. Namur O.

Researcher:

Dr. Namur O.

 

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The generation of felsic magmas in the oceanic crust: assimilation-fractional crystallization processes versus re-melting of the crust

 

Supervisor:

Prof. Dr. rer. nat. Jürgen Koepke

Researcher:

Dipl.-Geow. Martin Erdmann

Duration:

3 years

Funded by:

DFG

 

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The economic-cultural impact of the raw material clay for the brick city Luneburg

 

Supervisor:

Prof. Dr. Buhl, PD Dr. Pries (Leuphana Universität), Dr. Herdeg (Naturmuseum Lüneburg), Dr. Ring (Naturmuseum Lüneburg)

Researcher:

Corinna Grader, Antje Seidel (Leuphana Universität)

Duration:

4 Jahre

Funded by:

VW-Stiftung

 

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Isotopeneffekte bei der Selbstdiffusion und chemischen Diffusion von Lithium in Silicatgläsern und -kristallen

Bild zum Projekt  Isotopeneffekte bei der Selbstdiffusion und chemischen Diffusion von Lithium in Silicatgläsern und -kristallen

Supervisor:

Prof. Behrens, Dr. Horn, Dr. Schmidt

Researcher:

Dr. Anna Maria Welsch

Duration:

3 Jahre

Funded by:

DFG FOR 1277

 

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Darstellung und Transporteigenschaften von ungeordneten Li-Ionenleitern

Bild zum Projekt Darstellung und Transporteigenschaften von ungeordneten Li-Ionenleitern

Supervisor:

Prof. Binnewies & Prof. Behrens

Duration:

3 Jahre

Funded by:

DFG FOR 1277

 

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Magma differentiation processes and volatile contents in Shatsky Rise oceanic Plateau basalts: constraints from mineral, glass and melt inclusion compositions combined with experimental and thermodynamic modelling

Bild zum Projekt Magma differentiation processes and volatile contents in Shatsky Rise oceanic Plateau basalts: constraints from mineral, glass and melt inclusion compositions combined with experimental and thermodynamic modelling

Supervisor:

Dr. Almeev, Prof. Dr. Holtz

Researcher:

Anika Husen

Duration:

3 Jahre

Funded by:

DFG

 

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Crystallization of columbite-tantalite in pegmatites

 

Supervisor:

Prof. Dr. Holtz

Duration:

2 Jahre

Funded by:

DFG

 

 

Experimental study on vesiculation and formation of groundmass microlites induced by decompression: Constraints on processes related to magma ascent at Unzen volcano”, SPP ICDP

 

Supervisor:

Prof. Dr. Holtz

Duration:

3 Jahre

Funded by:

DFG

 

 

Die Suche nach Magmakammern unter Stratovulkane der zentralen Anden (N. Chile) mit petrologischen, geochemischen und geophysikalischen Methoden

 

Supervisor:

Prof. Dr. Holtz

Duration:

3 Jahre

Funded by:

DFG

 

 

The down-hole magmatic evolution in basalts and gabbros monitored by Fe-Ti oxides: a complete section of the superfast spreading crust at IODP site 1256D”, SPP IODP

 

Supervisor:

Prof. Dr. Holtz

Duration:

3 Jahre

Funded by:

DFG

 

 

„Methode zur Charakterisierung der Bearbeitbarkeit von sprödhartem Verbundwerkstoff“. DFG gefördertes Projekt in Kooperation mit dem Institut für Fertigungstechnik und Werkzeugmaschinen (Prof. Dr. B. Denkena)

 

Supervisor:

Prof. Dr. J. C. Buhl und Dr. S. H. Rahman (Projektteil des Instituts für Mineralogie)

Funded by:

DFG

 

 

„Temperaturabhängige Korrelation von Kristallstruktur mit Diffusionskoeffizienten, Ionenleitfähigkeit, Magnetismus und elastischen Konstanten Mullit-ähnlicher Bi-Oxide.“

 

Supervisor:

verantwortlich für Hannover: Prof. Dr. T. M. Gesing, Prof. Dr. C. H. Rüscher und Prof. Dr. J.C. Buhl

Funded by:

DFG

 

 

„Die wirtschaftlich-kulturelle Bedeutung des Rohstoffes Ton für die Backsteinstadt Lüneburg.“

 

Supervisor:

verantwortlich für Hannover: Prof. Dr. J.C. Buhl

Funded by:

VW-Stiftung

 

 

“Synthesis and Characterization of Zeolite and New Inorganic Polymeric Composites from Jordanian Kaolin –Towards Industrial Applications”

 

Supervisor:

Prof. Dr. J.C. Buhl

Researcher:

Dr. M. Gougazeh

Funded by:

DFG

 

 

„Bildungsprozesse Nanokristalliner Zeolithe aus mineralischen Reststoffen bei kurzer Reaktionszeit unter hochalkalischen Niedertemperaturbedingungen“

 

Supervisor:

Prof. Dr. J.C. Buhl

Researcher:

Dr. A. Hartmann

Funded by:

DFG