Geologische Rundschau

, Volume 82, Issue 1, pp 121–135 | Cite as

A Pan-African alkaline pluton intruding the Saramuj Conglomerate, south-west Jordan

  • Ghaleb Jarrar
  • Horst Wachendorf
  • Dieter Zachmann
Article
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Accepted:

Abstract

The geological setting, petrography and bulk mineral chemistry of a monzodiorite and a presumably consanguineous megaporphyry with large (up to 25 cm) labradorite megacrysts, both intruding the upper Proterozoic Saramuj Conglomerate in south-west Jordan (south eastern shore of the Dead Sea), were examined. The crystallization temperatures of the monzodiorite and the megaporphyry as determined from pyroxene thermometry and supported by contact metamorphic mineralogy are about 700 and 900°C, respectively. The intrusion depth of the monzodiorite is about 3–4 km. The monzodiorite was emplaced in the Saramuj Conglomerate at about 595 + 2 Ma ago according to Rb/Sr and U/Pb age determinations.

The stratigraphic positions of the monzodiorite, megaporphyry and their host rock (the Saramuj Conglomerate) were compared with time-equivalent lithologies in the Arabian-Nubian Shield.

Key words

Pan-African Orogeny alkaline plutons south-west Jordan thermometry age determinations 
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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Ghaleb Jarrar
    • 1
  • Horst Wachendorf
    • 2
  • Dieter Zachmann
    • 2
  1. 1.Department of GeologyUniversity of JordanAmmanHashemite Kingdom of Jordan
  2. 2.Institut für GeowissenschaftenTechnische Universität BraunschweigBraunschweigGermany

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