Lake level and climate records of the last 90 ka from the Northern Basin of Lake Van, eastern Turkey


Cagatay M. N. , OGRETMEN N., DAMCI E., STOCKHECKE M., Sancar Ü. S. , Eris K. K. , ...Daha Fazla

QUATERNARY SCIENCE REVIEWS, cilt.104, ss.97-116, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 104
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.quascirev.2014.09.027
  • Dergi Adı: QUATERNARY SCIENCE REVIEWS
  • Sayfa Sayıları: ss.97-116

Özet

Sedimentary, geochemical and mineralogical analyses of the ICDP cores recovered from the Northern Basin (NB) of Lake Van provide evidence of lake level and climatic changes related to orbital and North Atlantic climate system over the last 90 ka. High lake levels are generally observed during the interglacial and interstadial periods, which are marked by deposition of varved sediments with high total organic carbon (TOC), total inorganic carbon (TIC), low detrital influx (high Ca/F) and high delta O-18 and delta C-13 values of authigenic carbonate. During the glacial and stadial periods of 71-58 ka BP (Marine Isotope Stage 4, MIS4) and end of last glaciation-deglaciation (30-14.5 ka BP; MIS3) relatively low lake levels prevailed, and grey homogeneous to faintly laminated clayey silts were deposited at high sedimentation and low organic productivity rates.