A multidisciplinary study of the Gölbaşı-Harmanlı coal seam, SE Turkey

摘要: Abstract This study focuses on the Pleistocene Golbasi-Harmanli coal deposit located in East Anatolian Fault Zone (EAFZ), SE Turkey. The principal aim of is to determine factors that controlled peat accumulation by means palaeontological data, routine analyses (proximate-ultimate), mineralogical composition based XRD and SEM-EDX, petrography. basin-infillings consist alluvial, fluvial, lacustrine sediments. Palaeolake levels along with sedimentation were presumably EAFZ during Late Pliocene Holocene times. investigated coal-bearing zone composed a thick seam (up 39 m) thin clastic intercalations fossiliferous claystones. Palaeontological data from these bands imply accumulated Middle times, an uncommon period for formation coals We suggest movements caused rapid subsidence, favourable climatic conditions, allowed large relatively short time. results proximate ultimate 29 samples obtained two cores show high ash yields (av. 32%), low sulphur content 1.8%), net calorific value 11.6 MJ/kg) total carbon 35.5%) air-dry basis. mean random reflectances eu-ulminite B indicate low-rank coal. Maceral compositions maceral indices under limno-telmatic, mesotrophic peat-forming vegetation being mainly herbaceous plants. Ostracoda Mollusca fauna intercalating layers within provide important information about geographic distribution fossil taxa, environmental evaluation intercalations, age studied seam. species Gomphocythere geareyi was identified first Humphcypris subterranea record this genus These, presence Gastropoda subspecies Bithynia phialensis syriaca, transport into palaeomire via migratory birds Eastern Mediterranean areas. Discovery subterranea, African originated marks their northernmost worldwide occurrence.