Determination of Physical Properties of Geomaterials at GFZ Potsdam

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Determination of Physical Properties of
Geomaterialsat GFZ Potsdam

• Hans J. Mueller, Frank R. Schilling
• GFZ Potsdam
• Section 4.1Experimental Geochemistry and Mineral
  Physics
• Telegrafenberg
• D-14473 Potsdam
• Email hjmuel_at_gfz-potsdam.de
• fsch_at_gfz-potsdam.de

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Experimental Geochemistry Mineral Physics

• Research Activities
• Element-Cyles from Core to Atmosphere
• Phase Transitions Mantle Discontinuities
• Subduction Zone Processes
• Earthquake Processes Process Parameters

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Geochemical Cycle

• Diffusion Experiments

R. Milke
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Mechanism Dynamic of Geodynamic Processes
Schilling - Wunder
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Properties of Geomaterials
In-situ experiments under high P T
Hans J. Mueller
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Thermal Transport Properties
F.R. Schilling et al.
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Seismic velocity Measurements during dehydration
Amphibolit
intrinsische Druckabhängigkeit
2
Schließung von Mikro-rissen
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J. Ramelow
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IR Spectroscopye.g. OH in Coesite
M. Koch-Müller
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Thermodynamic Modeling
M. Gottschalk
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Transformation Plasticity
D. Bruhn C. Schmidt
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MAX80 Multi-Anvil Apparatus at HASYLAB
In-situ experiments up to 12 GPa, 2000 K
Simultanious XRD Ultrasonic Interferometry
Hans J. Mueller, C. Lathe
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MAX80 characteristics
Multi-anvil high pressure apparatus with six
anvils compressing a cubic sample volume
Pressure - generated by a 250-ton hydraulic
ram - measured by adding an internal pressure
marker with known p-V-T-data - tungsten carbide
anvils - maximum pressure 7 GPa for 6.0 mm
anvil truncation
9 GPa for 5.0 mm anvil truncation
12 GPa for 3.5 mm anvil
truncation
Temperature - maximum temperature 2,000 K -
produced by an internal heater - controled by a
thermocouple
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MAX80 characteristics
Continued
Ultrasonic interferometry - compressional mode
and shear mode transducers at anvils rear side -
upper and lower anvil with ultrasonic
installation - trannsducers natural frequencies
- 10 MHz, 16.3 MHz, 33.7 MHz - symmetrical and
asymmetrical set-up

• Energy-dispersive X-ray diffraction
• a Ge solid state detector analyses the
  diffracted white beam at a fixed
• angle
• - diffracted beam size controlled by a
  crossed-slit system
• - resolution 135 eV for 6.3 keV, 450 eV for 122
  keV

Angle-dispersive X-ray diffraction -
double-crystal, fixed offset monochromator with
Si (311) single crystals calibrated in the
wavelength range of 0.4 to 0.7 D - CCD detector
(diameter 133 mm, 2048 x 2043 pixels, pixel
size 65 x 65 Fm, dynamic range 16 bits, read-out
time 5 s)
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vp and vs for quartz and coesite
6 mm anvil truncation
5 mm
Hans J. Mueller
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Compressibility of NaCl measured by ultrasonic
interferometry and static compression
Hans J. Mueller
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Scheme of experimental runs
low density clinoenstatite
high density clinoenstatite
Hans J. Mueller, B. Wunder
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vp and vs in clinoenstatite at hp-hT-conditions
Hans J. Mueller C. Lathe, B. Wunder
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MAX200x

• Perspective

DIA Type 6/8 apparatus at a hard-wiggler
beamline at HASYLAB

• 1750t press

2 q Circle

• White and monochromatic
• X-rays

Ultrasonic interferomertry
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Diamond Anvil Cells
GHz Ultrasonic
C. Schmidt H.J. Reichmann
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Focused-Ion-Beamnm-sample preparation for TEM
R. Wirth
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Thank you for your
attention!
Thank you for your
attention!