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Projects

Amphibole: a mineral to unravel magma storage and timescales of sub-volcanic processes and eruptions

 

Supervisor:

Dr. Filippo Ridolfi

Researcher:

eigene Stelle

Duration:

2019-2021

Funded by:

DFG

 

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New insights into the interplay between water diffusion and viscosity in magma fragmentation

 

Supervisor:

Prof. Dr. Harald Behrens

Researcher:

M. Sc. Florian Pohl

Duration:

2019-2020

Funded by:

DFG

 

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Magmatic volatiles and ore metals released from intraoceanic arc magmas: constraints from high pressure experiments and melt inclusions for Brothers volcano, Kermadec arc

 

Supervisor:

Prof. Dr. Francois Holtz

Researcher:

M. Sc. Philipp Beckmann

Duration:

2020-2023

Funded by:

DFG

 

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Formation of monomineralic Fe-Ti oxide ores in the high-Ti ferrobasaltic system: A case study in Emeishan, China

 

Supervisor:

Prof. Dr. Francois Holtz

Researcher:

M. Sc. Sarah-Lynn Haselbach

Duration:

2018-2021

Funded by:

DFG

 

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Melting and storage conditions of rhyolites in the Snake River Plain Province , USA

 

Supervisor:

Prof. Dr. Francois Holtz

Researcher:

Dr. Renat Almeev

Duration:

2018-2022

Funded by:

DFG

 

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Understanding axial melt lens dynamics and lower crust accretion at fast-spreading mid-ocean ridges: new insights from drill cores obtained by the ICDP Oman Drilling Project

 

Supervisor:

Prof. Dr. Jürgen Koepke, Dr. Carl-Dieter Garbe-Schönberg

Researcher:

M. Sc. Dominik Mock

Duration:

2018-2022

Funded by:

DFG

 

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Effects of cutting edge residual stresses on the wear behavior of PVD-coated cutting tools

 

Supervisor:

Prof. Dr. Harald Behrens, Dr. Bernd Breidenstein

Duration:

2018-2021

Funded by:

DFG

 

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The ferric/ferrous ratio in silicic melts: experimental investigation and modelling

 

Supervisor:

Dr. Renat Almeev

Funded by:

DFG

 

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Understanding felsic veins in gabbros drilled by IODP at Atlantis Bank (Southwest Indian Ridge): Formation, metamorphism, and their role as multifunctional pathways for fluid and mass transfer

 

Supervisor:

Prof. Dr. Jürgen Koepke

Researcher:

M. Sc. Artur Engelhardt

Duration:

2019-2022

Funded by:

DFG

 

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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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ICDP – Oman Koordination

 

Supervisor:

Prof. Dr. Koepke

Duration:

2017-2019

Funded by:

DFG

 

 

Fate of tetravalent uranium under reducing conditions

 

Supervisor:

Prof. Dr. Weyer

Researcher:

Yvonne Röbbert, 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:

M. Sc. Yvonne Röbbert, M.Sc. Annika Neddermeyer

Duration:

2017-2022

Funded by:

durch EU: ERC-consolidator grant

 

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Differentiation of tholeiites - the role of primitive composition and small amounts of H2O

 

Supervisor:

Prof. Dr. Francois Holtz

Researcher:

Dr. Renat Almeev

Duration:

2016-2019

Funded by:

DFG

 

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

 

Supervisor:

Prof. Dr. Harald Behrens

Researcher:

Dr. Xiaoyan Li

Duration:

2016-2020

Funded by:

DFG

 

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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

Duration:

2016-2019

Funded by:

DFG

 

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A profile of multiple sulfur, oxygen, strontium isotopes and related chalcophile elements through lower slow-spreading crust (IODP Expedition 360, Atlantis Bank, Southwest Indian Ridge)

 

Supervisor:

Prof. Dr. rer. nat. Jürgen Koepke, Prof. Dr. Harald Strauß

Funded by:

DFG

 

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Long in-situ sections in the Wadi Gideah, Oman ophiolite: The key for understanding the mechanism of accretion, magmatic evolution and cooling of lower fast-spread oceanic crust

 

Supervisor:

Prof. Dr. Jürgen Koepke, Dr. Carl-Dieter Garbe-Schönberg

Duration:

2015-2018

Funded by:

DFG

 

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Melt/rock interaction and fractional crystallization in the lower crust at Hess Deep Rift, East Pacific Rise: A combined analytical and experimental study

 

Supervisor:

Prof. Dr. Jürgen Koepke

Duration:

2015-2018

Funded by:

DFG

 

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Silicate liquid immiscibility and the formation of Fe (±Ti ±P ±F ±REE) ore deposits

 

Supervisor:

Prof. Dr. Jürgen Koepke

Duration:

2015-2018

Funded by:

DFG

 

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The effect of network-modifiers (Mg, Ca, Na and K) on ferric/ferrous ratio in silicate melts: experimental study and improvement of existing models.

 

Supervisor:

Prof. Dr. Francois Holtz

Funded by:

DFG

 

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

 

Supervisor:

Dr. Renat Almeev

Duration:

2015-2018

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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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.-Ing. Joachim Deubener; Dr. Ralf Müller

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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„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