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Dikaiakos, J.G.; Tsitouris, C.G.; Siskos, P.A.; Melissos, D.A.; Nastos, P. |
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Title |
Rainwater composition in Athens, Greece |
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Journal Article |
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Year  |
1990 |
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Atmospheric Environment. Part B. Urban Atmosphere |
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24 |
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1 |
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171-176 |
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Elsevier |
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Call Number |
THL @ luqianxue.zhang @ dikaiakos1990rainwater |
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74 |
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Author |
Richter, B. C.; Kreidler, C.W. |
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Title |
Identification of Sources of Groundwater Salinization using Geochemical Techniques |
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Journal Article |
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Year |
1991 |
Publication |
EPA/600/2-91/064 |
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Pages |
259 |
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Keywords |
Geochemistry, USA, isotopes, salinization, ground water |
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Bureau of Economic Geology, Univ. of Austin, Texas |
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EPA |
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Bledsoe, B.E. |
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Language |
en |
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en |
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THL @ christoph.kuells @ |
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187 |
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Author |
Zhou, X.; Li, C. |
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Title |
Hydrogeochemistry of deep formation brines in the central Sichuan Basin, China |
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Journal Article |
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Year |
1992 |
Publication |
Journal of Hydrology |
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138 |
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1 |
Pages |
1-15 |
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Abstract |
Subsurface brines are abundant in the Sichuan Basin, China. Five brine-bearing aquifers have been identified within rocks of Triassic age in the central part of the basin. These are of two types: brine-bearing clastic and brine-bearing carbonate aquifers. Brines in this region have high total dissolved solids and chemical species that are different from those of evaporatively concentrated seawater. Deep formation brines in clastic aquifers, in which evaporites do not exist, are characterized by high concentrations of Ca, Sr, Ba, Br and I, low concentrations of Mg and K, and lack of SO4, and are dominated by the NaCaCl type. Brines in carbonate aquifers, which have interbeds of evaporites, are characterized by high total dissolved solids, low concentrations of Ca, Mg and SO4, and lack of Ba, and are of the NaCl type. The brines in clastic aquifers originate from connate continental sedimentary waters mixed with marine waters; membrane filtration through shales has played an important part in modifying the chemical compositions and increasing the salinity of the brines. Those in carbonate aquifers are bittern marine sedimentary waters, with chemical compositions mainly controlled by precipitation of evaporites. |
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0022-1694 |
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Asia |
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THL @ christoph.kuells @ Zhou19921 |
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41 |
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Author |
Bobba, A.G. |
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Title |
Mathematical models for saltwater intrusion in coastal aquifers |
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Year |
1993 |
Publication |
Water Resources Management |
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7 |
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1 |
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3-37 |
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Flow of freshwater and saltwater intrusion in coastal aquifers has drawn the attention of many investigators. Several laboratory, as well as mathematical models have been developed to study the pattern of flow of groundwater in coastal aquifers. Mathematical models have wider range of application and are the concern of this paper. Due to the complex nature of the problem, each of these mathematical models are based on certain simplifying assumptions and approximations. This paper presents a critical review of various methods of solution which have been proposed. The validity of the results abtained and the limitations of these models are also discussed. |
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1573-1650 |
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THL @ christoph.kuells @ Bobba.1993 |
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14 |
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Author |
Herut, B.; Starinsky, A.; Katz, A. |
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Title |
Strontium in rainwater from Israel: sources, isotopes and chemistry |
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Journal Article |
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Year |
1993 |
Publication |
Earth and Planetary Science Letters |
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120 |
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1-2 |
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77-84 |
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Abstract |
Eighteen ram samples from Israel have been analyzed for their chemical composmon and S7Sr/S6Sr ratios The Sr-Isotoplc rahos lie In the range 0 7078 and 0 7092, and the Sr concentrations vary from 1 × 10 -4 to 9 x 10 4 meq Sr/l.
Soluble salts in rainwater are inherited from three major natural sources, seaspray, Recent marine minerals and mineral dust eroded from rock outcrops and soft A mixing model is formulated to apply the chemical composmon of rain (CI and Sr 2+) and ~ts isotopic 87Sr/S6Sr ratio, for the identification and est~mahon of the Sr sources.
All the samples fall within the m~xing space predicted by the model for the three end members mentioned above The data indicate that the most important non-seaspray source contributing d~ssolved salts to the rams m Israel comprises a mixture of Senoman to Eocene chalk (and its weathering products) and Recent marine minerals, from local and imported sources.
Most of the samples (67%) contain 50% or more non-seaspray Sr 0 e, Sr dissolved from dust or Recent marine minerals), whereas 56% of the samples display 87Sr/86Sr ratios lower than 0 7090. The rest represent mixtures of seaspray and Recent marine minerals. |
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Elsevier |
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Call Number |
THL @ luqianxue.zhang @ herut1993strontium |
Serial |
95 |
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