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


Aydar E., Bayhan H., Gourgaud A.

COMPTES RENDUS GEOSCIENCE, vol.335, no.3, pp.279-288, 2003 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 335 Issue: 3
  • Publication Date: 2003
  • Doi Number: 10.1016/s1631-0713(03)00049-x
  • Title of Journal : COMPTES RENDUS GEOSCIENCE
  • Page Numbers: pp.279-288

Abstract

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.