Coal characteristics, elemental composition and modes of occurrence of some elements in the isaalan coal (Balikesir, NW Turkey)


KARAYİĞİT A. İ., Bircan C., Mastalerz M., Oskay R. G., Querol X., Lieberman N. R., ...More

INTERNATIONAL JOURNAL OF COAL GEOLOGY, vol.172, pp.43-59, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 172
  • Publication Date: 2017
  • Doi Number: 10.1016/j.coal.2017.01.016
  • Journal Name: INTERNATIONAL JOURNAL OF COAL GEOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.43-59
  • Keywords: Subbituminous coal, Micro-FTIR, Geochemistry, Arsenic, Palaeoenvironment, RARE-EARTH-ELEMENTS, TRACE-ELEMENTS, MINERAL MATTER, SOUTHWESTERN GUIZHOU, ELECTRON-MICROPROBE, GEOLOGICAL CONTROLS, HEALTH IMPACTS, RICH COALS, RANK COALS, COALFIELD
  • Hacettepe University Affiliated: Yes

Abstract

This study uses coal petrography, micro-FTIR, mineralogical, and geochemical analyses to determine the coal characteristics and controlling factors of elemental enrichments in the Isaalan coal (NW Turkey). The obtained data show that this subbituminous coal has a relatively low ash yield (avg. 19%), high hydrogen content (avg. 5.4%) and total S content (avg. 2.4%), on an air-dry basis. The maceral composition, along with micro-FTIR data on ulminite, suggests that lignin- and resin-rich vegetation was predominant The coal facies data imply the precursor peat was accumulating under, mesotrophic anoxic conditions where water level was high and fluctuating. The mineralogical composition of the bulk coal samples is composed mainly of quartz, pyrite, and clay minerals and lesser amounts of feldspars and carbonates.