Organic facies characteristics of the Miocene Soma Formation (Lower Lignite Succession-KM2), Soma Coal Basin, western Turkey

Hokerek S., ÖZÇELİK O.

European Geosciences Union General Assembly 2015 - Division Energy, Resources and Environment, (EGU), Vienna, Austria, 12 - 17 April 2015, vol.76, pp.27-32, (Full Text) identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 76
  • Doi Number: 10.1016/j.egypro.2015.07.836
  • City: Vienna
  • Country: Austria
  • Page Numbers: pp.27-32
  • Keywords: Western Turkey, Bakircay Graben, Soma Formation, organic facies, organic geochemistry
  • Akdeniz University Affiliated: Yes

Abstract

The Soma coal basin is one of the largest economic lignite-bearing alluvial basins of western Turkey. The Miocene succession of the coalfield contains two lignite seams successions; Lower Lignite, Middle Lignite. Kerogen in the deposits is type III, as indicated by organic petrographic observations and Rock-Eval data. Total organic carbon (TOC) values are between 28.45 and 73.38% in the formation. Tmax values vary between 403 and 429 degrees C, confirming maturation trends indicated by vitrinite reflectance data (between 0.35-0.48 Ro%). Organic facies type C and CD were identified in the investigated units. The organic matter is partly oxidized/oxidized and reworked. (C) 2015 The Authors. Published by Elsevier Ltd.