Reconstruction of groundwater flows and chemical water evolution in an amagmatic hydrothermal system (La Léchère, French Alps)
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| Title: | Reconstruction of groundwater flows and chemical water evolution in an amagmatic hydrothermal system (La Léchère, French Alps) |
|---|---|
| Authors: | Thiébaud, E.1 e.thiebaud@yahoo.fr, Dzikowski, M.2, Gasquet, D.2, Renac, C.3 |
| Source: | Journal of Hydrology. Feb2010, Vol. 381 Issue 3/4, p189-202. 14p. |
| Subjects: | Groundwater flow, Hydrogeology, Water chemistry, Orogenic belts, Radioisotopes in hydrology, Fault zones, Evaporites, Geothermal resources |
| Geographic Terms: | Alps, French (France), France |
| Abstract: | Summary: A detailed picture of the hydrogeochemistry of an alpine thermal area (La Léchère, French Alps) was drawn up from new and complete analyses of shallow and deep groundwater, including major and trace elements, gases, and stable (δ18O, δD, δ13C, δ34S) and radiogenic isotopes (14C), combined with data on the trace and stable isotope (δ18O, δ34S) contents of the aquifer rocks. Three different groundwater facies were recognized: (1) the shallow groundwater in the carbonate and crystalline rocks presents a poorly mineralized Ca–HCO3 facies; (2) the shallow groundwater from the evaporitic fault zone presents a mineralized Ca–Mg–SO4 facies; (3) and the deep thermal water presents a highly-mineralized Ca–Na–SO4 facies. The evolution from facies 2 to facies 3 is controlled by three phenomena: (i) the presence or absence of evaporitic deposits along the fault, which governs whether or not the water can interact with carbonates and dolomites, (ii) interactions with micaschists and Permo-Carboniferous rocks, which lead to Ca–Na exchanges and enrichment in some trace elements and gases (CO2, CH4 and H2S), and (iii) the long residence time (several thousand years) and high temperature (90°C) of the thermal water. [Copyright &y& Elsevier] |
| Copyright of Journal of Hydrology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 47953448 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Reconstruction of groundwater flows and chemical water evolution in an amagmatic hydrothermal system (La Léchère, French Alps) – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Thiébaud%2C+E%2E%22">Thiébaud, E.</searchLink><relatesTo>1</relatesTo><i> e.thiebaud@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Dzikowski%2C+M%2E%22">Dzikowski, M.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Gasquet%2C+D%2E%22">Gasquet, D.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Renac%2C+C%2E%22">Renac, C.</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Hydrology%22">Journal of Hydrology</searchLink>. Feb2010, Vol. 381 Issue 3/4, p189-202. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Groundwater+flow%22">Groundwater flow</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogeology%22">Hydrogeology</searchLink><br /><searchLink fieldCode="DE" term="%22Water+chemistry%22">Water chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Orogenic+belts%22">Orogenic belts</searchLink><br /><searchLink fieldCode="DE" term="%22Radioisotopes+in+hydrology%22">Radioisotopes in hydrology</searchLink><br /><searchLink fieldCode="DE" term="%22Fault+zones%22">Fault zones</searchLink><br /><searchLink fieldCode="DE" term="%22Evaporites%22">Evaporites</searchLink><br /><searchLink fieldCode="DE" term="%22Geothermal+resources%22">Geothermal resources</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Alps%2C+French+%28France%29%22">Alps, French (France)</searchLink><br /><searchLink fieldCode="DE" term="%22France%22">France</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Summary: A detailed picture of the hydrogeochemistry of an alpine thermal area (La Léchère, French Alps) was drawn up from new and complete analyses of shallow and deep groundwater, including major and trace elements, gases, and stable (δ18O, δD, δ13C, δ34S) and radiogenic isotopes (14C), combined with data on the trace and stable isotope (δ18O, δ34S) contents of the aquifer rocks. Three different groundwater facies were recognized: (1) the shallow groundwater in the carbonate and crystalline rocks presents a poorly mineralized Ca–HCO3 facies; (2) the shallow groundwater from the evaporitic fault zone presents a mineralized Ca–Mg–SO4 facies; (3) and the deep thermal water presents a highly-mineralized Ca–Na–SO4 facies. The evolution from facies 2 to facies 3 is controlled by three phenomena: (i) the presence or absence of evaporitic deposits along the fault, which governs whether or not the water can interact with carbonates and dolomites, (ii) interactions with micaschists and Permo-Carboniferous rocks, which lead to Ca–Na exchanges and enrichment in some trace elements and gases (CO2, CH4 and H2S), and (iii) the long residence time (several thousand years) and high temperature (90°C) of the thermal water. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Hydrology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jhydrol.2009.11.041 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 189 Subjects: – SubjectFull: Groundwater flow Type: general – SubjectFull: Hydrogeology Type: general – SubjectFull: Water chemistry Type: general – SubjectFull: Orogenic belts Type: general – SubjectFull: Radioisotopes in hydrology Type: general – SubjectFull: Fault zones Type: general – SubjectFull: Evaporites Type: general – SubjectFull: Geothermal resources Type: general – SubjectFull: Alps, French (France) Type: general – SubjectFull: France Type: general Titles: – TitleFull: Reconstruction of groundwater flows and chemical water evolution in an amagmatic hydrothermal system (La Léchère, French Alps) Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Thiébaud, E. – PersonEntity: Name: NameFull: Dzikowski, M. – PersonEntity: Name: NameFull: Gasquet, D. – PersonEntity: Name: NameFull: Renac, C. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 02 Text: Feb2010 Type: published Y: 2010 Identifiers: – Type: issn-print Value: 00221694 Numbering: – Type: volume Value: 381 – Type: issue Value: 3/4 Titles: – TitleFull: Journal of Hydrology Type: main |
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