Reasons of different colors in the ignimbrite lithology: Micro-XRF and confocal Raman spectrometry method

KORALAY T., KADIOĞLU Y. K.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, cilt.69, sa.3, ss.947-955, 2008 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 69 Sayı: 3
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.saa.2007.05.063
  • Dergi Adı: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.947-955
  • Anahtar Kelimeler: ignimbrite, Central Anatolia Volcanic Province, micro-XRF spectrometry, confocal Raman spectrometry, devitrification, SPECTROSCOPY, INCLUSIONS, SPECIATION, PRESSURE, MINERALS, DIAMOND, WASTE
  • Ankara Üniversitesi Adresli: Evet

Özet

Medium to large volume ignimbrites usually show vertical changes in terms of color, mineral components, texture and geochemistry. Determination of vertical changes in single extensive ignimbrite flow unit is difficult and requires careful studies. Color changes in ignimbrite flow units are very important for earth scientists. This may cause to identify the same ignimbrite series with different definition. Incesu ignimbrite has a wide distribution in the Central Anatolian Volcanic Province (CAVP). It is classified into three levels as lower, middle and upper according to color and welding degree. There is a sharp contact between the lower and middle level. The lower level is dark brown to black in color and the middle level has pinkish red to red color. The present paper focuses on the investigation of color changes between the ignimbrite levels by using micro-XRF and confocal Raman spectrometry.