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Chlorine-36 in groundwater of the United States: empirical data

Davis, Stanley N ; Moysey, Stephen ; Cecil, DeWayne L ; Zreda, Marek

Hydrogeology journal, 2003-04, Vol.11 (2), p.217-227 [Periódico revisado por pares]

Heidelberg: Springer Nature B.V

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  • Título:
    Chlorine-36 in groundwater of the United States: empirical data
  • Autor: Davis, Stanley N ; Moysey, Stephen ; Cecil, DeWayne L ; Zreda, Marek
  • Assuntos: Chlorine ; Coastal environments ; Empirical analysis ; Geochemistry ; Groundwater ; Groundwater pollution ; Hydrogeology ; Hydrology ; Mountains ; Oceans ; Tracers ; Weapons
  • É parte de: Hydrogeology journal, 2003-04, Vol.11 (2), p.217-227
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Natural production of the radionuclide chlorine-36 ( super(36)Cl) has provided a valuable tracer for groundwater studies. The nuclear industry, especially the testing of thermonuclear weapons, has also produced large amounts of super(36)Cl that can be detected in many samples of groundwater. In order to be most useful in hydrologic studies, the natural production prior to 1952 should be distinguished from more recent artificial sources. The object of this study was to reconstruct the probable preanthropogenic levels of super(36)Cl in groundwater in the United States. Although significant local variations exist, they are superimposed on a broad regional pattern of super(36)Cl/Cl ratios in the United States. Owing to the influence of atmospherically transported ocean salt, natural ratios of super(36)Cl/total Cl are lowest near the coast and increase to a maximum in the central Rocky Mountains of the United States.Original Abstract: La production naturelle du radionucleide chlore-36 ( super(36)Cl) fournit un interessant traceur pour l'etude des eaux souterraines. L'industrie nucleaire, en particulier les essais de bombes thermonucleaires, a egalement produit de grandes quantites de super(36)Cl qui a pu etre detecte dans de nombreux echantillons d'eau souterraine. Afin d'en ameliorer l'usage dans les etudes hydrologiques, la production naturelle avant 1952 doit etre distinguee des sources artificielles plus recentes. L'objectif de cette etude a ete la reconstruction des niveaux probables de super(36)Cl dans les eaux souterraines des Etats-Unis, avant la production anthropique du super(36)Cl. Bien qu'il existe des variations locales significatives, elles se surimposent a un canevas regional de rapports super(36)Cl/Cl dans les Etats-Unis. Du fait de l'influence du sel oceanique transporte dans l'atmosphere, les rapports naturels de super(36)Cl/Cl total sont plus faibles pres de la cote et augmentent jusqu'a un maximum dans les Montagnes Rocheuses centrales des Etats-Unis.
  • Editor: Heidelberg: Springer Nature B.V
  • Idioma: Inglês
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