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Use of stable isotopes, tritium, soluble salts, and redox-sensitive elements to distinguish ground water from irrigation water in the Salton Sea basin

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Abstract

Evaporative concentration of irrigation water diverted from the Colorado River to the Salton Sea basin for several decades has produced an overlying system (that includes drainwater and surface waters) whose composition is highly variable and differs from that of the shallow regional ground water beneath it. The role of hydrologic and geochemical processes in causing these differences (and the variability) is inferred from analyses of selected isotopes (3H, D, 18O, 15N, 34S) and elements (As, B, Br, Cl, Fe, N, Se). Selected element-to-Cl ratios establish the relative importance and location of the various processes. Isotopes of H O are used in estimating the relative contribution of leakage from an unlined canal and regional ground water to a nearby spring.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Use of stable isotopes, tritium, soluble salts, and redox-sensitive elements to distinguish ground water from irrigation water in the Salton Sea basin
ISBN:
0872628116
Year Published:
1991
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
First page:
524
Last page:
530
Number of Pages:
7
Conference Title:
Proceedings of the 1991 National Conference on Irrigation and Drainage
Conference Location:
Honolulu, HI, USA
Conference Date:
22 July 1991 through 26 July 1991