Palaeomagnetic investigations of the tertiary and quaternary igneous rocks: V. The basic tertiary basalts of Lower Silesia,Poland |
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Authors: | K. Birkenmajer A. E. M. Nairn |
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Affiliation: | (1) Present address: Laboratory of Geology, P. A. N. Kraków, Kraków;(2) Present address: Geology Department, Case Western Reserve University, 44106 Cleveland, Ohio |
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Abstract: | Measurements of the directions of remanent magnetization of samples from sixty nine sites in the volcanic igneous rocks of Lower Silesia are reported. The activity spanned the time from Oligocene to Pliocene or Pleistocene, the magnetic data suggest the possible equivalence of the onset of vulcanity in Poland and East Germany. The stratigraphic control is too poor to permit the distinction of a sequence of magnetic zones.
Zusammenfassung An Proben aus vulkanischen Eruptivgesteinen von 69 Lokalitäten in Niederschlesien nahmen die Autoren Messungen der Richtungen remanenter Magnetisierung vor. Die Vulkantätigkeit umfaßte die Zeit vom Oligozän bis Pliozän oder Pleistozän. Die magnetischen Daten lassen vermuten, daß der Vulkanismus in Polen und Ostdeutschland gleichzeitig einsetzte. Die Stratigraphie ist noch zu wenig bekannt, um eine Folge magnetischer Zonen aufzustellen.
Résumé Les mesures de l'aimantation rémanente sur les échantillons prélevés de 69 sites dans les roches volcanique de Basse Silésie ont été faites. L'activité volcanique a duré de l'Oligocène jusqu'au Pliocène ou même Pleistocène; les résultats magnétiques indiquent qu'il est possible que le commencement du volcanisme en Pologne et Allemagne de l'est date de la même époque. La stratigraphie est mal connue et il n'est pas encore possible d'établir une série de zones magnétiques.
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Contribution no. 45, Geology Department, Case Western Reserve University, Cleveland, Ohio 44106. |
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