Other
Scientific paper
Jul 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995gecoa..59.3039o&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 59, Issue 14, pp.3039-3047
Other
1
Scientific paper
In hydrothermal quartz from the Kaneuchi tungsten deposit of Honsyu island, Japan, the smaller primary fluid inclusions have the power 18 O values. This correlation is well accounted for by a quantitative model based on (isotropic or anisotropic) 18 O diffusion through quartz. The model yields a room temperature 18 O diffusivity that is close to the extrapolated diffusivity of water molecules measured by Cordier (1988) but much higher than the extrapolated diffusivity of structural oxygen measured by Farver and Yund (1991). The observed correlation between the size of primary fluid inclusions in quartz and their 18 O (water) is thus, well explained by relatively fast diffusion of oxygen as water molecules.
Kazahaya Kohei
Matsuo Sadao
Ohba Takeshi
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