Tectono-sedimentary evolution of an Early Pleistocene shallow marine fan-deltaic succession at the western coast of Turkey

SÜMER Ö., Inci U., SÖZBİLİR H.

GEODINAMICA ACTA, cilt.25, ss.112-131, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1080/09853111.2013.877241
  • Dergi Adı: GEODINAMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.112-131
  • Anahtar Kelimeler: Pleistocene, marine fan-delta, facies analysis, Buyuk Menderes Graben, western Anatolia, SEA-LEVEL CHANGE, BUYUK MENDERES GRABEN, BAJA-CALIFORNIA-SUR, MESOZOIC COVER SERIES, PLIOCENE LORETO BASIN, COARSE-GRAINED DELTA, MIOCENE POHANG BASIN, CONTINENTAL-MARGIN, ALLUVIAL-FAN, SEQUENCE STRATIGRAPHY
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

The Quaternary period on the western coast of Turkey is studied using sedimentological features and geochronological age data of the Soke-Milet Basin (SMB), which is a subsidiary to the Buyuk Menderes Graben (BMG). Here, for the first time, we geochronologically document the Early Pleistocene shallow marine fan-deltaic succession in the Fevzipasa Formation (basin-fill unit of the SMB), 15 km inland of the current Aegean coast and 150 m above current sea level. The formation outcrops at the western end of the BMG. It comprises an alluvial fan to freshwater carbonate, shallow marine fan-deltaic and alluvial fan depositional packages separated by intrabasinal unconformities. Based on conventional sedimentary data, seven different facies associations (FA) have been distinguished in the Fevzipasa Formation: (FA 1) hyperconcentrated flow-generated lower alluvial fan deposits, (FA 2) freshwater lacustrine carbonate deposits, (FA 3) prodelta deposits, (FA 4) shallow marine fan-delta slope deposits, (FA 5) nearshore sandy mouth-bar-type fan-delta front deposits, (FA 6) alluvial fan-delta top deposits and (FA 7) hyperconcentrated flow-generated upper alluvial fan deposits. The shallow marine facies above the lower alluvial fan deposits, considered in conjunction with stratigraphical observations and geochronological and paleontological age data, suggest that a late Early Pleistocene transgression affected the Aegean region.