Indications of intermediate compositions in the BaSO4-SrSO4 solid-solution series from the bahceciktepe celestine deposit, Sivas, East-Central Anatolia, Turkey

Tekin E., Varol B., Sayili I., Elerman Y.

CANADIAN MINERALOGIST, cilt.40, ss.895-908, 2002 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40
  • Basım Tarihi: 2002
  • Doi Numarası: 10.2113/gscanmin.40.3.895
  • Dergi Adı: CANADIAN MINERALOGIST
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.895-908
  • Anahtar Kelimeler: barite, celestine, intermediate compositions, (Ba,Sr)SO4 solid solution, sector zoning, Sivas Basin, Turkey, AQUEOUS-SOLUTIONS, (BA,SR)SO4
  • Ankara Üniversitesi Adresli: Hayır

Özet

Various types of celestine occurrences are hosted by Tertiary evaporite deposits and molasse-type sediments of the Sivas Basin, in east-central Anatolia, Turkey. Celestine mineralization occurs in various sedimentary facies, including elastic, carbonaceous and evaporitic. Mineralization in the Ba-Sr sulfate solid-solution series is found in a few samples from the Bahceciktepe celestine deposit, one of the typical mineralized sites in the Basin. Samples with a dendritic structure have karstic dissolution-induced voids and usually show a travertine-like texture; some are crystallized in fibroradial and subhedral tabular forms. In addition, clay envelopes around crystals and compositional and sector zoning of the crystals are typical features. XRD, electron-microprobe, single-crystal XRD and AAS analyses of the same samples suggest the presence of intermediate compositions in the BaSO4-SrSO4 solid-solution series, as well as compositions close to the end members.