Balance of90Sr over Antarctica: Existence of a protected area

• Published in: Earth and Planetary Science Letters
• Main Authors: Lambert, G., Ardouin, B., Brichet, E., Lorius, C.
• Other Authors: Centre des Faibles Radioactivités, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de glaciologie et géophysique de l'environnement (LGGE), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 1971
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; environment; Antarc*; Antarctica
• Online Access: https://hal.science/hal-03403578; https://doi.org/10.1016/0012-821X(71)90186-5

International audience The study of firn cores from Terre Adélie and from stations located along the axis Mirny-Vostok made possible new calculations of90Sr accumulation in Antarctica, i.e. 25.103 Ci as of January 1964. Despite the scarcity of sampling stations, an inhomogeneous geographical distribution may be observed which shows the existence of a low contamination area. Moreover, a linear relationship seems to exist in many cores between90Sr and water accumulations. Thus it could be possible to extrapolate some geochemical measurements made in Antarctica to the rest of the Southern Hemisphere.