Other
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984gecoa..48.1769b&link_type=abstract
Geochimica et Cosmochimica Acta, Volume 48, Issue 9, p. 1769-1778.
Other
3
Scientific paper
The 0.5-2.0 μm diameter size fraction of the Cheto clay from Chambers, Arizona, was sedimented to form 0.5-2.0 cm-thick cakes, either with a relatively random or a relatively well-oriented fabric as defined by the criterion of MEADE (1961). The cakes were compacted under a confining pressure of 34.7 MPa (5000 psi) and a solution 0.79 m in NaCI and 0.079 m in CaCl2 was forced through at 20°C by a fluid pressure differential of either 6.94 MPa (1000 psi) or 13.0 MPa (2000 psi). The filtration efficiencies of the cakes with oriented fabric are roughly twice as great as those of the others, reaching 50-68%. Ca2+ passed through the cake preferentially, relative to Na+ in three of four experimental runs. Cake thickness, over the fourfold range studied, has no significant effect upon filtration efficiency. The stable oxygen isotopic fractionation for brine water passing through a cake with relatively well-oriented fabric is -0.96%..
Benzel William M.
Graf Donald L.
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