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This article in JEQ

  1. Vol. 7 No. 3, p. 428-434
    Received: Dec 15, 1977

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Carbon Contents and Sources in Ground Waters of the Central Platte Region in Nebraska1

  1. R. F. Spalding,
  2. J. R. Gormly and
  3. K. G. Nash2



Fifty-one ground water samples collected in a losing reach of the Platte River were analyzed for alkalinity, dissolved oxygen (DO), dissolved organic carbon (DOC), and for the ∂13C values of DOC. Ranges in concentrations were 24.8 to 109 mg/liter, 0.0 to 5.5 mg/liter, 0.5 to 4.8 mg/liter, and −15.6 to −25.4 0/00 for inorganic carbon, DO, DOC, and ∂13C, respectively. The concentrations of these constituents are primarily associated with land use and well depth. Carbon isotope fractionation can be useful in determining sources of organic carbon to the ground water.

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