Cathodoluminescence (CL) features of the Anatolian agates, hydrothermally deposited in different volcanic hosts from Turkey

HATİPOĞLU M., Ajo D., Kırıkoğlu M. S.

JOURNAL OF LUMINESCENCE, cilt.131, sa.6, ss.1131-1139, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 131 Sayı: 6
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.jlumin.2011.02.013
  • Dergi Adı: JOURNAL OF LUMINESCENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1131-1139
  • Anahtar Kelimeler: Agate genesis, Cathodoluminescence, Provenance, Silica, Turkey, SILICA POLYMORPH, MICROCRYSTALLINE QUARTZ, CRYSTAL-STRUCTURE, MOGANITE, CHALCEDONY, WATER, TRANSPORT, ORIGIN
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Two different types of multi-colored gem-quality agate samples were investigated. They are both found in the same area in the Cubuk-Ankara region of Turkey although the first group is morphologically and geologically distinct from the second, being nodular-shaped agates occurring in cavity-spaces of a rhyolite host rock with an acidic character. They generally do not have any macroscopic inclusions, but the second group of rather block-shaped agates occurs in the fracture-spaces of an andesite host rock with a more neutral character, i.e. of lower free silica content, and they may display pseudomorphic bar-like macroscopic inclusions.