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Contents

Foreword
 
1.
Advisory Board and Management
 
 
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, Deformation and Properties of Mantle Minerals
 
a.
The effect of alumina on the electrical conductivity of silicate perovskite (Y. Xu, C.A. McCammon, B.T. Poe, T.J. Shankland, A.G. Duba and D.C. Rubie)
 
b.
Electrical conductivity of perovskite-(Mg,Fe)O assemblages (A.G. Duba, Y. Xu and B.T. Poe, in collaboration with J. Peyronneau/Paris)
 
c.
Determination of the elastic constant c11 of (Mg,Fe)O as a function of Fe-content by ultrasonic interferometry (H.J. Reichmann, S.D. Jacobsen and S.J. Mackwell)
 
d.
Iron-magnesium interdiffusion in (Mg,Fe)O (S.J. Mackwell, I.C. Stretton, C.S.J. Shaw and B.T. Poe)
 
e.
High-pressure experimental study of the effect of transition metal cations on the deformation of oxides (MgyX1-y)O (X=Ni,Fe) (S. Karato, J. Lawlis, D.J. Frost and D.C. Rubie, in collaboration with K.H. Lee/Minnesota)
 
f.
Determination of the relative strengths of (Mg,Fe)2SiO4 polymorphs using a novel two-layer experimental design (J. Lawlis, S. Karato, D.J. Frost and D.C. Rubie, in collaboration with K.H. Lee/Minnesota)
 
g.
Strength of high-pressure phases determined by relaxation of transformation stress (J.L. Mosenfelder, D.C. Rubie and F. Langenhorst, in collaboration with J.A.D. Connolly/Zürich)
 
h.
Characterization of dislocations in natural and synthetic majorite garnets (P. Cordier and F. Langenhorst, in collaboration with V. Voegelé/Lille and S. Heinemann/Potsdam)
 
i.
Plastic deformation of stishovite under mantle conditions (P. Cordier, J.L. Mosenfelder and F. Langenhorst)
 
j.
Grain growth kinetics in (Mg,Fe)2SiO4 wadsleyite (J.L. Mosenfelder and D.C. Rubie, in collaboration with K. Kunze/Zürich)
 
 
3.2
Experimental Geochemistry
 
a.
Are Si and O the light element in the core? A study of Si and O solubilities in liquid metal as a function of P, T and fO2 (C.K. Gessmann and D.C. Rubie)
 
b.
Experimental study of metal/silicate highly siderophile element partitioning: effect of temperature, oxygen fugacity and pressure (S. Fortenfant, D.B. Dingwell and D.C. Rubie, in collaboration with J.L. Birck, P. Schiano/Paris, M. Tuprett/Memorial and I. Horn/Cambridge, USA)
 
c.
Element partitioning between immiscible liquids in silicate-fluoride and silicate-borate systems using high-temperature centrifuge separation (A.M. Dorfman and D.B. Dingwell, in collaboration with I.V. Veksler and J.D. Webster/New York)
 
d.
A study of the oxidation state of iron in (Mg,Fe)(Si,Al)O3 perovskite (S. Lauterbach, C.A. McCammon, F. Langenhorst and F. Seifert, in collaboration with P.A. van Aken/Darmstadt)
 
e.
Reduction reactions in iron-bearing silicates (A.G. Duba, B.T. Poe, D.C. Rubie and F. Langenhorst, in collaboration with S. Chakraborty/Köln) 
 
f.
Phase equilibria of hydrous phases at high pressure and temperature (D.J. Frost)
 
g.
Phase relations and ultramafic partial melts of hydrous KLB-1 mantle peridotite (T. Kawamoto and D.C. Rubie)
 
h.
Dissolution of orthopyroxene in basanitic melt from 0.4 to 2 GPa: kinetics, mechanisms and the implications for the origins of Si-Al-rich alkaline glass inclusions in mantle xenoliths (C.S.J. Shaw)
 
i.
Studies of mantle-derived xenoliths (C.S.J. Shaw, in collaboration with J. Eyzaguirre and C. Stanley/London, Canada)
 
 
3.3
Crystal Chemistry and Structure
 
a.
Phase transitions in the system CaTiO3-CaFeO2.5 (A.I. Becerro, F. Seifert, C.A. McCammon, R.J. Angel and F. Langenhorst)
 
b.
Mössbauer studies of perovskites produced by laser-heated diamond anvil cells: a comparison of phases resulting from heating with either YAG or CO2 lasers (A.G. Duba and C.A. McCammon, in collaboration with R. Boehler/Mainz and J. Peyronneau/Paris)
 
c.
Iron crystal chemistry in (Mg,Fe)SiO3 majorite (C.A. McCammon, in collaboration with N.L. Ross/London)
 
d.
Oxidation state of iron in hydrous silicate phases (C.A. McCammon, in collaboration with J.R. Smyth, H.M.S. Laustsen/Boulder, T. Kawamoto/Beppu and N.L. Ross/London)
 
e.
High-pressure CaAl4Si2O11: another five-coordinate silicon compound? (R.J. Angel and R. Miletich, in collaboration with L. Gautron/Marne-la-Vallée)
 
f.
Evidence from Mössbauer spectroscopy for the incommensurate-normal phase transition in åkermanite (C.A. McCammon, J.D.C. McConnell, R.J. Angel and F. Seifert)
 
g.
Phase transition and electronic structure: the high-pressure behaviour of the Ba-Cr analogue of gillespite (R. Miletich, R.J. Angel and J.R. Sowerby)
 
h.
Displacive phase transitions in clinopyroxenes (T. Arlt and R.J. Angel, in collaboration with M. Kunz/Zürich)
 
i.
Electronic and magnetic properties of P21/c clinopyroxenes in the system MgSiO3-FeSiO3 (C.A. McCammon, in collaboration with S.G. Eeckhout and E. De Grave/Gent)
 
j.
Electric-field gradient and mean-squared-displacement tensors in heden-bergite from single crystal Mössbauer measurements (C.A. McCammon and R. Miletich, in collaboration with C. Tennant/Christchurch)
 
k.
Copper substitution in braunite: a combined neutron and X-ray powder diffraction study (N. Zotov and R. Miletich, in collaboration with H. Boysen/München, H. Tietze and W. Kockelmann/ISIS, Didcot, UK)
 
l.
Pressure-induced metallization of thallium halides (TlX: X=Cl, Br, I) (R.A. Secco)
 
 
3.4
Metamorphism at Different Time Scales
 
a.
On the degassing behaviour of calcite: Shock experiments and rapid decompression in a multianvil apparatus (F. Langenhorst and B.T. Poe, in collaboration with A. Deutsch/Münster and U. Hornemann/Weil am Rhein)
 
b.
Diamonds from the Lappajärvi impact crater, Finland: origin by solid-state transformation (F. Langenhorst, in collaboration with V.L. Masaitis, G. Shafranovsky/St. Petersburg and M. Koivisto/Espoo)
 
c.
Disequilibrium in the form of compositional zoning in garnet and problems of interpretation (P.J. O'Brien)
 
d.
The subduction and exhumation history of the Indian Plate during Himalayan collision: evidence from rare eclogites (P.J. O'Brien, in collaboration with R. Law/Blacksburg and P.J. Treloar/Kingston, UK)
 
 
3.5
Fluids and their Interaction with Silicate Melts and Minerals
 
a.
The speciation of silica in hydrous fluids at extreme pressures and temperatures (N. Zotov and H. Keppler)
 
b.
Distribution of water between nominally anhydrous minerals in the system MgSiO3 H2O (N. Bolfan-Casanova, H. Keppler and D.C. Rubie)
 
c.
Solubility of water in coesite at high pressure and temperature (J.L. Mosenfelder)
 
d.
Comparison of the water solubility in synthetic pure MgSiO3 enstatite and in a natural, aluminous enstatite from Tanzania (M. Rauch and H. Keppler)
 
e.
Hydrogen diffusion in enstatite (S.J. Carpenter, S.J. Mackwell and C.S.J. Shaw)
 
f.
The pressure and temperature dependence of water speciation in rhyolitic melts (J.R. Sowerby and H. Keppler)
 
g.
Water solubility in carbonatite melts (H. Keppler)
 
h.
An experimental study of the partitioning of halogens (Cl, Br, I) between hydrous fluid and silicate melt (H. Bureau and H. Keppler, in collaboration with N. Métrich/Saclay)
 
i.
Constraints on the degassing processes and eruption dynamics for a "wet" hot spot volcano: the Piton de la Fournaise March 1998 eruption (H. Bureau, in collaboration with N. Métrich/Saclay and M.P. Semet/Paris)
 
 
3.6
Melt Physics and Chemistry
 
a.
Calculation of Raman spectra and vibrational properties of silicate glasses (N. Zotov and H. Keppler, in collaboration with I. Ebbsjö/Nyköping and D. Timpel/Jena)
 
b.
Niobium in silicate glasses: Structural and geochemical role by XAS (D.B. Dingwell and E. Paris, in collaboration with C. Romano/Rome, G. Giuli/Florence and I. Davoli/Tor Vergata)
 
c.
The influence of variable normative quartz, albite and orthoclase on the viscosity of haplogranitic melts (V. Mincione, C. Gennaro, K.-U. Hess and D.B. Dingwell)
 
d.
Shear viscosity measurements close to the charge balanced join in the system MgO-Al2O3-SiO2 (M.J. Toplis and D.B. Dingwell)
 
e.
Nickel and cobalt oxide partial molar melt volumes: implications for the pressure-dependence of siderophile element partitioning between melts and metals (P. Courtial, J. Gottsmann and D.B. Dingwell, in collaboration with A. Holzheid/Cambridge, USA)
 
f.
Partial molar volumes of siderophile components in silicate melts: Pressure dependence of metal-silicate partitioning (C. Holzapfel, P. Courtial and D.B. Dingwell, in collaboration with H. Palme and S. Chakraborty/Köln)
 
g.
Experimental study of the compositional dependence of Ni activity in silicate melts (S. Fortenfant and D.B. Dingwell)
 
h.
Hydrous intermediate granitic (sensu lato) melt viscosities: Expansion of the hydrous melt viscosity database and model to intermediate compositions (K.-U. Hess, D.B. Dingwell and C. Romano/Rome)
 
i.
Viscosities of XAlSi3O8 (X=Li,Na,K) melts with added water: implications for water solution mechanisms (C. Romano, V. Mincione, K.-U. Hess and D.B. Dingwell)
 
j.
Raman spectroscopy of CMAS glasses quenched from pressures up to 10 GPa (C. Romano, B.T. Poe and N. Zotov)
 
k.
Silicon and oxygen self-diffusion in diopside melt at 2000°C and up to 8 GPa and estimation of viscosity using the Eyring relation (J. Reid, B.T. Poe and D.C. Rubie)
 
l.
High pressure viscosity of liquid Fe alloys using in-situ sphere speedometry measurement (R.A. Secco and B.T. Poe)
 
 
3.7
Magma Dynamics and Volcanic Processes
 
a.
Systematic investigation of combined foaming and fragmentation in rhyolitic melts (C. Martel, D.B. Dingwell and O. Spieler, in collaboration with M. Pichavant/Orléans and M. Wilke/Hannover) 
 
b.
Crystal retention in the fragmentation of Merapi basaltic andesite: comparison of experimental and field data (O. Spieler and D.B. Dingwell, in collaboration with L. Schwarzkopf/Kiel)
 
c.
Fragmentation processes of dome lavas of Fugendake, Unzen Volcano, Japan (J. Gottsmann, O. Spieler and D.B. Dingwell)
 
d.
Primary versus secondary fragmentation in "fragmentation bomb" experiments (O. Spieler, C. Martel and D.B. Dingwell)
 
e.
Tube pumices: strain markers of a ductile-brittle transition in explosive eruptions (D.B. Dingwell, in collaboration with J. Martí and C. Soriano/Barcelona)
 
f.
Welding of volcanic glasses: Quantification via viscosity-temperature-H2O relationship for Teide phonolites (D. Giordano and D.B. Dingwell, in collaboration with C. Romano/Rome and J. Marti/Barcelona)
 
g.
Cooling dynamics within the 2020 years B. P. eruption of Montaña Blanca, Tenerife (J. Gottsmann and D.B. Dingwell, in collaboration with J. Martí/Barcelona)
 
h.
The cooling rates of hyaloclastites: Applications of relaxation geospeedometry to undersea volcanics (D.B. Dingwell, in collaboration with M. Wilding/Davis, R. Batiza/Honolulu and L. Wilson/Lancaster)
 
 
3.8
Methodological Developments
 
a.
Calibration of a large-volume multianvil apparatus for a 5000-tonne press (B.T. Poe, D.J. Frost and A.G. Duba)
 
b.
Pressure calibration using ultrasonic measurements at high pressures and room temperature in the multianvil press (J. Kung) 
 
c.
Progress on ultrasonic interferometry measurements at high temperature in a new diamond anvil-cell (S.D. Jacobsen, H.J. Reichmann and R.J. Angel, in collaboration with H. Spetzler, J.R. Smyth/Boulder and W.A. Bassett/Ithaca)
 
d.
Viscosity measurements at elevated pressure: a dilatometrical study in the high viscosity range (C. Gennaro and D.B. Dingwell, in collaboration with M. Pichavant/Orléans)
 
e.
Thermal expansion of silicate liquids: direct determination using container-based dilatometry (J. Gottsmann, D.B. Dingwell and C. Gennaro)
 
f.
High precision pressure control for high-temperature magma fragmentation experiments (O. Spieler and D.B. Dingwell)
 
g.
Direct analysis of fluid inclusions in doped glass using LA-ICP-MS: determination of element partitioning between fluid phase and melt (B. Schäfer and D.B. Dingwell, in collaboration with D. Günther and R. Frischknecht/Zürich)
 
h.
O K-edge ELNES spectroscopy of brucite: orientation-dependence, dehydration and effects of protons (F. Langenhorst and F. Seifert, in collaboration with P.A. van Aken/Darmstadt and Z. Wu/Paris)
 
i.
New solid-state NMR results (M. Bechmann, S. Dusold, X. Helluy, J. Kümmerlen and A. Sebald)
 
4.
Publications, Conference Presentations, Seminars, Visiting Scientists
 
 
4.1
Publications (published)
 
a.
Refereed international journals
 
b.
Conference proceedings
 
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
 
a.
Visiting scientists funded by the Bayerisches Geoinstitut
 
b.
Visiting scientists funded by EU Project "Access to Large-Scale Scientific Facilities"
 
c.
Visiting scientists supported by other external funded BGI projects
 
d.
Visitors (externally funded)
 
4.7
Honours and awards
 
4.8
Editorship of scientific journals
 
4.9
Membership of scientific advisory bodies
 
4.10
Public relations and press reports
 
5.
Scientific and Technical Personnel

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