High-pressure falling sphere viscosimetry of basaltic and dacitic rocks in conjunction with synchrotron radiation

In situ falling-sphere technique viscosity measurements in a DIA-type multi-anvil apparatus – MAX80 at beamline F2.1 at DESY / HASYLAB, Hamburg, Germany – have been performed. The viscosity was measured following Stokes law by evaluation of X-radiography sequences taken by a CCD-camera. Powdered bas...

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Bibliographic Details
Published in:Journal of physics. Conference series 2010-03, Vol.215 (1), p.012028
Main Authors: Mueller, Hans J, Stroncik, N, Naumann, R, Lathe, C, Spiwek, M, Wehber, M, Schilling, F R, Lauterjung, J
Format: Article
Language:English
Subjects:
Basalt
Falling spheres
Fluid flow
Physics
Stokes law (fluid mechanics)
Synchrotron radiation
Synchrotrons
Viscosity
Viscosity measurement
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Summary:In situ falling-sphere technique viscosity measurements in a DIA-type multi-anvil apparatus – MAX80 at beamline F2.1 at DESY / HASYLAB, Hamburg, Germany – have been performed. The viscosity was measured following Stokes law by evaluation of X-radiography sequences taken by a CCD-camera. Powdered basalt, dacite, and diabase samples were measured at pressures of 0.5 and 1 GPa and temperatures of 1890 K. After pressurization the temperature produced by an internal graphite heater was increased up to sample melting observed by X-ray diffraction and X-radiography. The results cover a data range from 3.5 Pa s (basalt at 1 GPa) and 195.5 Pa s (diabase at 0,5 GPa) and are in good agreement with published data.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/215/1/012028