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Groundwater geochemical data

Figure 6 Groundwater geochemical data for wells along the flow path designated in Fig. 5. Data collected in Spring 1992 by Titan (1995). A, arsenic concentration along the flow path. B, iron concentration along the flow path. C, Sulfate concentration along the flow path. D, iron versus arsenic in the wells along the flow path. Figure 6 Groundwater geochemical data for wells along the flow path designated in Fig. 5. Data collected in Spring 1992 by Titan (1995). A, arsenic concentration along the flow path. B, iron concentration along the flow path. C, Sulfate concentration along the flow path. D, iron versus arsenic in the wells along the flow path.
In summary, both the potentiometric and geochemical data provide evidence of the existence of an extensive groundwater flow system operating... [Pg.241]

Three primary problem areas exist in dating groundwater. These are (1) Formulation of realistic geochemical-hydrodynamic models needed to interpret data which are generated by field and laboratory measurements, (2) development of sensitive and accurate analytical methods needed to measure trace amounts of various stable and unstable nuclides, and (3) theoretical and field oriented studies to determine with greater accuracy the extent and distribution of the subsurface production of radionuclides which are commonly assumed to originate only in the atmosphere. [Pg.218]

Figure 12.1 Map showing locations of sites (squares) used for the soil profiles and boreholes (C and B), and contents of arsenic in the leach fractions of the top layer of the soil profiles. Squares with stars denote samples used for the Pb isotope study other squares are locations of profiles used in a geochemical study (Ayuso, unpublished data). Dashed lines enclose areas containing wells characterized by Lipfert and Reeve (2004) and Lipfert et al. (2007) as containing high-arsenic groundwater (As >1.3 pmol L ), medium arsenic groundwater, and low arsenic groundwater in the Mount Percival recharge area (most wells have <0.13 jimol L-1). Solid line encloses the drainage basin in this study. Figure 12.1 Map showing locations of sites (squares) used for the soil profiles and boreholes (C and B), and contents of arsenic in the leach fractions of the top layer of the soil profiles. Squares with stars denote samples used for the Pb isotope study other squares are locations of profiles used in a geochemical study (Ayuso, unpublished data). Dashed lines enclose areas containing wells characterized by Lipfert and Reeve (2004) and Lipfert et al. (2007) as containing high-arsenic groundwater (As >1.3 pmol L ), medium arsenic groundwater, and low arsenic groundwater in the Mount Percival recharge area (most wells have <0.13 jimol L-1). Solid line encloses the drainage basin in this study.
Mazor, E. (1992b) Reinterpretation of Cl-36 data physical processes, hydraulic inter-connections, and age estimates in groundwater systems. Applied Geochem. 7, 351-360. [Pg.444]

Mazor, E. (1993c) The need for auxiliary data to address the long list of processes recruited to interpret 36C1 data in groundwater systems—a reply to the comment by J.C. Fontes and J.N. Andrews. Applied Geochem. 8, 667-669. [Pg.444]


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See also in sourсe #XX -- [ Pg.86 ]




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