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The use of (super 13) C diamond as pressure and temperature sensor for diamond-anvil-cell experiments

Pascal Munsch, Helene Bureau, Marouan El Yakoubi, Hicham Khodja and Alexander Zaitsev
The use of (super 13) C diamond as pressure and temperature sensor for diamond-anvil-cell experiments
European Journal of Mineralogy (June 2015) 27 (3): 365-375


This study aims at providing an accurate method to determine in situ the pressure in the sample chamber during a diamond-anvil-cell experiment. We report the calibration of the frequency shift with pressure of the Raman band of a 98.3 at.% (super 13) C diamond against ruby and SrB (sub 4) O (sub 7) :Sm (super 2+) . This method is suitable for the study of geological fluids during hydrothermal experiments performed at pressures up to 16 GPa and temperature up to 800 degrees C, particularly for subduction-zone processes involving fluids or/and silicate melts. Experiments were carried out in a new hydrothermal diamond-anvil cell (HDAC) designed for the study of geological fluids at crustal and mantle pressures.We propose the following equation to determine the pressure up to 16 GPa at temperatures up to 800 degrees C. P(GPa)=373.97(26)-16.55.[510.41(35)+v (sub RC) -v(P,T)+6.9(3).10 (super -3) .T(D GK)-2.32(5).10 (super -5) .T (super 2) ( degrees K)] (super 0.5) where P is the pressure in GPa, nu is the Raman frequency under pressure and temperature, nu (sub RC) is the Raman frequency at room conditions and T is the temperature in kelvins. As an application, we have determined the pressure of the total miscibility between water and a silicate melt of haplogranite composition using the Raman shift of (super 13) C-rich diamond, which is compared with the pressure calculated using the equation of state of water.

ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 27
Serial Issue: 3
Title: The use of (super 13) C diamond as pressure and temperature sensor for diamond-anvil-cell experiments
Affiliation: Universite Pierre et Marie Curie, Institut de Mineralogie, de Physique des Materiaux et de Cosmochimie, Paris, France
Pages: 365-375
Published: 201506
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Germany
References: 55
Accession Number: 2015-086536
Categories: General geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
Secondary Affiliation: Commissariat a l'Energie Atomique et aux Energies Alternatives, FRA, FranceCity University of New York, College of Staten Island, USA, United States
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Schweizerbart'sche Verlagsbuchhandlung. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201537
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