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Contents
 
Foreword
 
1. Advisory Board and Directorship
 
 
1.1
Advisory Board
 
1.2
Management
     
2. Staff, funding and facilities
 
 
2.1
Staff
 
2.2
Funding
 
2.3
Laboratory and office facilities
 
2.4
Experimental equipment
 
3. Research Projects
 
 
3.1.
Phase transformations and deformation of mantle minerals: investigating mantle dynamics
 
a.
Kinetics of the transformation of natural olivine to high pressure polymorphs under subduction zone conditions (L. Kerschhofer, D.C. Rubie, T.G. Sharp and F. Seifert)
 
b.
Mechanisms and kinetics of enstatite phase transformations at high pressure (A.R. Hogrefe, T.G. Sharp, D.C. Rubie and F. Seifert)
 
c.
High pressure experimental studies of the mechanism of the spinel to modified spinel transformation (D.C. Rubie, in collaboration with A. Brearley/Albuquerque)
 
d.
Effects of the olivine-modified spinel transformation on the rheological properties of (Mg,Fe)2SiO4 (S. Karato, D.C. Rubie, C. Dupas and T.G. Sharp)
 
e.
Transformation and deformation mechanisms of olivine and ß-phase (C. Dupas, W.B. Durham, T.G. Sharp and D.C. Rubie)
 
f.
The search for deep earthquakes in the laboratory (W.B. Durham, D.C. Rubie, T.G. Sharp and C. Dupas, in collaboration with S.H. Kirby/Menlo Park)
 
 
3.2.
Geochemistry at extreme pressures and temperatures
 
a.
Partitioning of elements between magnesiowüstite, silicate melt and molten iron (E. Ohtani and D.C. Rubie)
 
b.
The influence of temperature, pressure and oxygen fugacity on the metal/oxide and metal/silicate partition coefficients of siderophile elements (C.K. Geßmann and D.C. Rubie)
 
c.
The effect of silicate liquid composition on the metal-silicate partitioning of siderophile elements at high pressures and temperatures (D.C. Rubie, in collaboration with V. Hillgren/Houston and M. Drake/ Tucson)
 
d.
Experimental determination of the solubility behaviour of noble metals in a haplobasaltic melt (W. Ertel, D.B. Dingwell and H.St.C. O'Neill)
 
e.
Experimental determination of the solubility behaviour of Ni in a haplobasaltic melt (W. Ertel, D.B. Dingwell and H.St.C. O'Neill)
 
f.
Coexisting Fe-Ni sulfide melts and silicate melts at 1400 °C, 2 GPa (V. von Seckendorff and H.St.C. O'Neill)
 
g.
Fe3+ content of eclogite diamond inclusions (C. McCammon, in collaboration with I. Chinn and J.J. Gurney/Cape Town and M.E. McCallum/Colorado)
 
h.
Fe3+ content of diamond inclusions from the transition zone and lower mantle (C. McCammon, in collaboration with J. Harris/Glasgow, B. Harte and M.T. Hutchison/Edinburgh)
 
i.
The geochemical cycle of potassium in subduction zones (M.W. Schmidt)
 
 
3.3
Crystal chemistry and structure
 
a.
Solid solution properties of Ca-free clinopyroxenes (R.J. Angel, in collaboration with A.B. Woodland/Heidelberg)
 
b.
Crystal chemistry and thermodynamics of phengite (M.W. Schmidt)
 
c.
A high-pressure structural study of microcline (KAlSi3O8) to 7 Gpa (D.R. Allan and R.J. Angel)
 
d.
Crystal structures of BaCrSi4O10 and SrCrSi4O10: two new Cr2+ silicates (R. Miletich and D.R. Allan)
 
e.
Constraints on the stability of rhodate spinel in the system Rh-MgAl2O4 (J. Nell and H.St.C. O'Neill, in collaboration with P. Ellis/Randburg SA)
 
f.
ELNES spectroscopy and multiple scattering calculations on SiO2 polymorphs (F. Seifert, B.T. Poe and T.G. Sharp, in collaboration with Z. Wu/Nantes)
 
g.
Semiquantitative determination of mixed silicon coordination in high-pressure phases (B.T. Poe, T.G. Sharp and F. Seifert, in collaboration with Z. Wu/Nantes)
 
h.
Ferric iron solubility in (Mg,Fe)O at high P,T (C.A. McCammon)
 
i.
The ferric iron substitution in alkali feldspar (J.E. Mungall and R.J. Angel)
 
j.
MAS NMR of binary and ternary crystalline inorganic phosphate systems (T. Schaller and A. Sebald, in collaboration with R. Glaum/ Giessen and W. Dollase/Los Angeles)
 
 
3.4
Phase transitions and transformations
 
a.
Microstructural investigations of mixed superstructures of natural pyrrhotite from the KTB bore hole: a structural investigation of magnetic domains in pyrrhotite (T.G. Sharp and S. Keyssner, in collaboration with A. Kontny/Windischeschenbach and M. Pósfai/Veszprém)
 
b.
Symmetry change and microstructures of majorite-pyrope garnets (S. Heinemann, F. Seifert, T.G. Sharp and D.C. Rubie)
 
c.
Evidence for a pressure-induced phase transition in majorite-rich garnets (M. Rauch, H. Keppler, S. Heinemann and B.T. Poe, in collaboration with W. Häfner and A. Wokaun/Bayreuth)
 
d.
Reversal of the orthorhombic to high-P C2/c monoclinic transition in FeSiO3 (R.J. Angel, in collaboration with A.B. Woodland/ Heidelberg and D.A. Hugh-Jones/Cambridge)
 
e.
High-pressure Mössbauer study of FeSiO3 clinopyroxene and the P21/c -> C2/c phase transition (C.A. McCammon, in collaboration with C. Tennant/Christchurch)
 
f.
Phase relationships of hydrous phases in the absence of a fluid phase (M.W. Schmidt, in collaboration with S. Poli/Milano)
 
g.
Kinetics of the reversible hydration process in synthetic mixite (R. Miletich, in collaboration with J. Zemann/Vienna)
 
h.
The crystal structure of the high-pressure phase of Na0.3K0.7TiOPO4 (D.R. Allan and R.J. Angel, in collaboration with R.J. Nelmes/Edinburgh)
 
i.
Cu2+ substitution in braunite: Evidence of symmetry breaking resulting from Jahn-Teller induced distortions and cation ordering (R. Miletich, T.G. Sharp and F. Brunet)
 
 
3.5
Timescales of Earth and planetary processes: constraints from natural samples
 
a.
Zoning in natural garnets: constraints on thermal histories of metamorphic rocks (P.J. O'Brien)
 
b.
Microstructures of high-pressure minerals in the Sixiangkou L6 chondrite: constraints on the duration of shock metamorphism (T.G. Sharp, in collaboration with Ming Chen and A. El Goresy/Heidelberg)
 
 
3.6
Fluids and their interaction with silicate melts and minerals
 
a.
High-temperature in-situ FTIR study of H2O-CO2 fluid inclusions (R.L. Linnen and H. Keppler, in collaboration with S.M. Sterner/Richland)
 
b.
In-situ FTIR measurement of water speciation in silicate melts (A. Shen and H. Keppler)
 
c.
The effect of boron on the speciation of water in haplogranitic melts (C. Romano, D.B. Dingwell and K.-U. Hess)
 
d.
Near-infrared spectroscopic determination of hydrous species in glasses: an interlaboratory comparison (C. Romano, M. Nowak and D.B. Dingwell, in collaboration with H. Behrens/Hannover and F. Holtz/Orleans)
 
e.
The effect of water on multicomponent diffusion in silicate melts near the granite minimum (J.E. Mungall, D.B. Dingwell and C. Romano)
 
f.
Speciation and solubility of hydroxyl in pyrope garnet (R. Lu and H. Keppler)
 
 
3.7.
Melt physics and chemistry
 
a.
Parametrization of viscosity-temperature relationships of aluminosilicate melts (K.-U. Hess and D.B. Dingwell, in collaboration with E. Rössler/Bayreuth)
 
b.
The effect of water on the viscosity of a haplogranitic melt under P-T-X conditions relevant to silicic volcanism (D.B. Dingwell, C. Romano and K.-U. Hess)
 
c.
The fragility of hydrous granitic melts (D.B. Dingwell)
 
d.
Compressibility of alkaline-Earth silicate melts (S.L. Webb)
 
e.
The effect of water on the viscosity of natural silicic magmas (N.S. Bagdassarov, R.J. Stevenson, D.B. Dingwell and C. Romano)
 
f.
Densities of melts in the CaO-MgO-Al2O3-SiO2 system (P. Courtial and D.B. Dingwell)
 
g.
Densities of some mantle melts (P. Courtial, E. Ohtani and D.B. Dingwell)
 
h.
Measurement of oxide activities in silicate melts in the CaO-MgO- Al2O3-SiO2 system by equilibration with Pd (L. Chamberlin)
 
i.
High field strength element behaviour in granitic melts (R.L. Linnen and H. Keppler, in collaboration with M. Pichavant and F. Holtz/Orléans)
 
 
3.8
Structure and dynamics of silicate melts
 
a.
Oxygen self diffusion in silicate melts: effects of pressure and polymerization (B.T. Poe and D.C. Rubie, in collaboration with P.F. McMillan/Tempe, S. Chakraborty/Köln and J. Craven/Edinburgh)
 
b.
Tracer diffusion in melts of haplogranitic composition: relation to viscosity (J.E. Mungall and D.B. Dingwell, in collaboration with M. Chaussidon/Nancy)
 
c.
Melt viscosities close to the metaluminous join in the system Na2O-Al2O3-SiO2: Implications for the structural role of aluminium in silicate melts (M.J. Toplis and D.B. Dingwell)
 
d.
The effect of high field strength cations on the viscosities of silicate melts of variable alkali/aluminium ratio (M.J. Toplis and D.B. Dingwell)
 
e.
The structural role of phosphorus in aluminosilicate melts studied by 31P MAS NMR (T. Schaller and M.J. Toplis)
 
f.
X-ray absorption evidence for variable coordination of Al in melts along the join Ca3Al2O6-SiO2 (C. Romano, P. Courtial and D.B. Dingwell, in collaboration with Z. Wu/Nantes, G. Giuli and A. Mottana/Rome)
 
g.
Speciation of transition metals in silicate melts (H. Keppler and N.S. Bagdassarov)
 
h.
Crystal field spectra of transition metal ions in hydrous aluminosilicate glasses (M. Nowak and H. Keppler)
 
i.
The glass transition in hydrous granitic melts: a comparison of volumetric, viscometric and spectroscopic methods (D.B. Dingwell)
 
 
3.9
Magma physics
 
a.
The enhancement of permeability during partial melting through microfracturing (D.C. Rubie, in collaboration with T. Rushmer/Vermont and J.A.D. Connolly/Zürich)
 
b.
Viscoelastic behavior of partially molten granites (N.S. Bagdassarov and A. Dorfman)
 
c.
Centrifuge modeling of bubble ascent in viscous magmas (N.S. Bagdassarov and A. Dorfman)
 
d.
Vesiculation processes in a water-rich calc-alkaline obsidian (R.J. Stevenson, N.S. Bagdassarov and C. Romano)
 
e.
Microlites and "nanolites" in a rhyolitic glass: Microstructural and chemical characterisation (R.J. Stevenson, T.G. Sharp and D.B. Dingwell)
 
f.
Viscosity of microlite-rich rhyolitic obsidians: an experimental study (R.J. Stevenson, D.B. Dingwell, S.L. Webb and T.G. Sharp)
 
g.
Rheological modelling of a rhyolitic lava flow: implications for hazard assessment (R.J. Stevenson)
 
h.
High temperature magma fragmentation by rapid decompression (M. Alidibirov and D.B. Dingwell)
 
 
3.10
Methodological developments
 
a.
A diamond-anvil cell for single-crystal X-ray diffraction studies to pressures in excess of 10 GPa (D.R. Allan, R. Miletich and R.J. Angel)
 
b.
Four-circle single-crystal diffractometer for high-pressure diffraction (R.J. Angel, D.R. Allan and R.M. Miletich, in collaboration with L.W. Finger/Washington)
 
c.
A new curve for calibrating piston-cylinder assemblies at low pressure (F. Brunet, in collaboration with D. Vielzeuf/Clermont-Ferrand)
 
d.
Extension of the Pd activity sensor technique to high pressure (L. Chamberlin)
 
e.
In situ measurements of sound wave velocities at conditions of the Earth's mantle (R. Knoche, S.L. Webb and D.C. Rubie)
 
f.
Determination of elasticity of minerals at high pressure and high temperature using a diamond anvil cell and a gigahertz ultrasonic interferometer (A.H. Shen, H.J. Reichmann, H. Spetzler, H. Schulze and R. Weigel)
 
g.
The multi-anvil press as a deformation apparatus, revisited (W. Durham and D.C. Rubie)
 
h.
Complex electrical impedance measurements in the multianvil press (B.T. Poe and D.C. Rubie)
 
i.
High pressure density of silicate melts (P. Courtial, D.B. Dingwell, E. Ohtani and R. Knoche)
 
j.
Centrifuge-assisted falling sphere viscometry (A. Dorfman, K.-U. Hess and D.B. Dingwell)
 
k.
Modification of the experimental apparatus for magma fragmentation to investigate the effect of decompression rate on fragmentation (M. Alidibirov and D.B. Dingwell)
 
l.
Analytical TEM measurement of sub-micron compositional zoning: a method for obtaining low-temperature diffusion data (E. Meißner and T.G. Sharp, in collaboration with S. Chakraborty/Köln)
 
m.
Mössbauer milliprobe measurements on single crystals in the size range 200 - 500 µm (C.A. McCammon, in collaboration with C. Tennant/Christchurch)
 
n.
Optimization and evaluation of ELNES spectra (T.G. Sharp, B.T. Poe and F. Seifert)
 
o.
Nuclear magnetic resonance (E. Klaus, J. Kümmerlen, T. Schaller and A. Sebald)
 
4. Publications, conference presentations, seminars, visiting scientists
 
4.1
Publications (published)
 
4.2
Publications (submitted, in press)
 
4.3
Presentations at scientific institutions and at congresses
 
4.4
Lectures and seminars at Bayerisches Geoinstitut
 
4.5
Scientific conferences organized by/with assistance of Bayerisches Geoinstitut
 
4.6
Visiting scientists
funded by the Bayerisches Geoinstitut
funded by "Access to Large Scale Scientific Facilities"
(externally funded)
 
4.7
Theses
 
4.8
Honors and awards
 
4.9
Editorship for scientific journals
 
5. Scientific and technical personnel

Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany
Tel: +49-(0) 921 55 3700 / 3766, Fax: +49-(0) 921 55 3769, E-mail: bayerisches.geoinstitut(at)uni-bayreuth.de