The lamprophyres of Afyon stratovolcano, western Anatolia, Turkey: description and genesis


Aydar E., Bayhan H., Gourgaud A.

COMPTES RENDUS GEOSCIENCE, cilt.335, ss.279-288, 2003 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 335 Konu: 3
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/s1631-0713(03)00049-x
  • Dergi Adı: COMPTES RENDUS GEOSCIENCE
  • Sayfa Sayıları: ss.279-288

Özet

The Afyon stratovolcano exhibits lamprophyric rocks, emplaced as hydrovolcanic products, aphanitic lava flows and dyke intrusions, during the final stages of volcanic activity. Most of the Afyon volcanics belong to the silica-saturated alkaline suite, as potassic trachyandesites and trachytes, while the products of the latest activity are lamproitic lamprophyres (jumillite, orendite, verite. fitztroyite) and alkaline lamprophyres (campto-sannaite, sannaite, hyalo-monchiquite, analcime-monchiquite). Afyon lamprophyres exhibit LILE and Zr enrichments, related to mantle metasomatism. (C) 2003 Academie des sciences. Published by Editions scientifiques et medicales Elsevier SAS. All rights reserved.