252 resultados para 87-582B


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We have measured the 3He/4He and 20Ne/4He ratios of gases dissolved in the pore water in sediments at two sites in the Nankai Trough (Site 583) and the Japan Trench (Site 584). The 3He/4He and 20Ne/4He ratios vary from 0.215 * 10**-6 to 1.23 * 10**-6 and from 50 * 10**-3 to 2700 * 10**-3, respectively. These values can be explained by mixing two components, one from the atmosphere and one with a 3He/4He ratio of (0.2 to 0.3) * 10**-6. The latter component may be derived from the ocean crust near the subduction zone.

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Der niederschlagsreiche, durch mehrere Schadenshochwasser gekennzeichnete Sommer 1987 hat die Nachmessungen an den Gletschern nicht behindert. In 16 Berichten aus elf Gebirgsgruppen wurden die Beobachtungs- und Meßergebnisse von 125 Gletschern vollständig und in bewährter Weise mitgeteilt. Die Originalberichte sind im AV-Gletschermeßarchiv in Innsbruck eingestellt.