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Panagopoulos, G. |
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Title |
Application of major and trace elements as well as boron isotopes for tracing hydrochemical processes: the case of Trifilia coastal karst aquifer, Greece |
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2009 |
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Environmental Geology |
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58 |
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5 |
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1067-1082 |
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0943-0105 |
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Greece |
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THL @ christoph.kuells @ Panagopoulos2009 |
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36 |
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Author |
Pacheco, F.A.L.; Szocs, T. |
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Title |
“Dedolomitization reactions” driven by anthropogenic activity on loessy sediments, SW Hungary |
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Journal Article |
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2006 |
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Applied Geochemistry |
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21 |
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4 |
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614-631 |
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In the Szigetvár area, SW Hungary, shallow groundwaters draining upper Pleistocene loess and Holocene sediments are considerably contaminated by domestic effluents and leachates of farmland fertilizers. The loess contains calcite and dolomite, but gypsum was not recognized in these sediments. The anthropogenic inputs contain significant amounts of Ca and SO4. The Ca from these anthropogenic inputs is promoting calcite growth, with concomitant consumption of carbonate alkalinity, undersaturation of the system with respect to dolomite, and dolomite dissolution; in brief, is driving “dedolomitization reactions”. Geochemical arguments supporting the occurrence of “dedolomitization reactions” in the area are provided by the results of mass balance and thermodynamic analyses. The mass balances predicted the weather sequence dolomite\textgreatercalcite\textgreaterplagioclase\textgreaterK-feldspar, at odds with widely accepted sequences of weatherability where calcite is the first mineral in the weathering sequence. The exchange between calcite and dolomite can be a side effect of “dedolomitization reactions” because they cause precipitation of calcite. The thermodynamic prerequisites for “dedolomitization reactions” are satisfied by most local groundwaters (70%) since they are supersaturated (or in equilibrium) with respect to calcite, undersaturated (or in equilibrium) with respect to dolomite, and undersaturated with respect to gypsum. The Ca vs. SO4 and Mg vs. SO4 trends are also compatible with homologous trends resulting from “dedolomitization reactions”. |
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0883-2927 |
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THL @ christoph.kuells @ Pacheco2006 |
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35 |
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Post, V.E.A. |
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Annotated translation of “Nota in verband met de voorgenomen putboring nabij Amsterdam [Note concerning the intended well drilling near Amsterdam]” by J. Drabbe and W. Badon Ghijben (1889) |
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Journal Article |
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2018 |
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Hydrogeology Journal |
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26 |
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6 |
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1431-2174 |
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THL @ christoph.kuells @ osti_22780850 |
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90 |
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Ola, I.; Drebenstedt, C.; Burgess, R.M.; Mensah, M.; Hoth, N.; Külls, C. |
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Title |
Remediating Oil Contamination in the Niger Delta Region of Nigeria: Technical Options and Monitoring Strategies |
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2024 |
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The Extractive Industries and Society |
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17 |
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101405 |
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Elsevier |
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THL @ christoph.kuells @ ola2024remediating |
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224 |
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Ola, I.; Drebenstedt, C.; Burgess, R.M.; Mensah, M.; Hoth, N.; Okoroafor, P.; Külls, C. |
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Assessing petroleum contamination in parts of the Niger Delta based on a sub-catchment delineated field assessment |
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2024 |
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Environmental Monitoring and Assessment |
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196 |
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6 |
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585 |
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Springer International Publishing Cham |
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THL @ christoph.kuells @ ola2024assessing |
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225 |
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