Published March 1978 | Version v1
Journal article Metadata-only

The effect of fluid pressure on oxygen isotope exchange between feldspar and water

Creators

  • 1. Brown Univ., Providence, R.I. (USA)

Description

The rate of oxygen isotope exchange between adularia and 2 M KCl solution has been measured at 6500C at pressures from 125 to 4000 bar. Isotropic diffusion coefficients calculated from these data show a positive dependence on the fluid pressure. This dependence is opposite to the predicted effect of hydrostatic pressure and is attributed to the activity of 'water' (H20, H+ or 0H-) in the feldspar. (author)

Additional details

Identifiers

DOI
10.1016/0016-7037(78)90175-8;

Publishing Information

Journal Title
Geochimica et Cosmochimica Acta
Journal Volume
42
Journal Issue
3
Series
Geochim. Cosmochim. Acta.
Journal Page Range
235-239
ISSN
0016-7037

INIS

Country of Publication
United States
Country of Input or Organization
United Kingdom
INIS RN
9375610
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S58: GEOSCIENCES;
Descriptors DEI
AQUEOUS SOLUTIONS; FELDSPARS; HIGH PRESSURE; HIGH TEMPERATURE; HYDROSTATICS; ISOTOPIC EXCHANGE; OXYGEN; OXYGEN ISOTOPES; POTASSIUM CHLORIDES; PRESSURE DEPENDENCE; VERY HIGH PRESSURE; WATER
Descriptors DEC
ALKALI METAL COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; DISPERSIONS; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; MINERALS; MIXTURES; NONMETALS; OXYGEN COMPOUNDS; POTASSIUM COMPOUNDS; SOLUTIONS

Optional Information

Notes
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