Reconstruction of Last Glacial Maximum glaciers and palaeoclimate in the central Taurus Range, Mt. Karanfil, of the Eastern Mediterranean

Oğuzhan Köse, M. Akif Sarıkaya*, Attila Çiner, Adem Candaş, Cengiz Yıldırım, Klaus M. Wilcken

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10 Atıf (Scopus)

Özet

We report the first glacial chronology of Mt. Karanfil (3059 m above sea level; a.s.l.), a small mountain in the south-central Taurus Range in Turkey. Well-preserved terminal and lateral moraines are clustered in four groups; M1, M2, M3, and M4, between ∼2000 and ∼2400 m a.s.l., composed of limestone blocks. Each moraine group originated from one to three cirque areas (C1, C2, C3, and C4 cirques) on the mountain's northern face between 2400 and 2600 m a.s.l. The best estimated mean ages of moraines M1 (17.3 ± 2.4 ka), M2 (18.6 ± 1.6 ka), and M3 (20.0 ± 2.6 ka) indicate that glaciers reached their maximum extents on the global Last Glacial Maximum (LGM), and they were persistent till the Late Glacial. The last moraine group (M4), more oriented towards the north, is dated to 14.6 ± 2.4 ka, implying that the M4 glacier lasted a few thousand years more. Also, a relict rock glacier in the C1 cirque floor was dated to 9.9 ± 0.9 ka and testifies to the development of permafrost conditions at the onset of Holocene. The timing of glaciation on Mt. Karanfil is close to the global LGM, as similar terrestrial cosmogenic nuclide chronologies were obtained from other mountains in the eastern Mediterranean. We also used the Parallel Ice Sheet Model (PISM) to reconstruct the glaciers and climate during the LGM on Mt. Karanfil. Twenty-one palaeoclimate simulations were run as a function of present temperature and precipitation to reach the steady-state glacier extents, and the modelled glacial areas were compared with the field-observed ice extents. The best-fit scenarios indicate that the LGM climate on Mt. Karanfil was 8.3 ± 0.5 °C colder than today if the precipitation levels were the same as today. More humid (20% wetter) or arid (20% drier) conditions than today bring the palaeotemperature estimates to 6.9 ± 0.4 °C or 10.4 ± 0.6 °C lower than the present, respectively.

Orijinal dilİngilizce
Makale numarası107656
DergiQuaternary Science Reviews
Hacim291
DOI'lar
Yayın durumuYayınlandı - 1 Eyl 2022

Bibliyografik not

Publisher Copyright:
© 2022 Elsevier Ltd

Finansman

This work was supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK 116Y155). Computing resources used in this work were provided by the National Center for High-Performance Computing of Turkey (UHeM) under grant number #4006452019. We thank the Parallel Ice Sheet Model (PISM) developers at the University of Alaska, Fairbanks, and the Potsdam Institute for Climate Impact Research. The development of PISM is supported by NSF grants PLR-1644277 and PLR-1914668 and NASA grants NNX17AG65G and 20-CRYO2020-0052. We acknowledge the Australian Government's financial support (AP11366) for the Centre for Accelerator Science at ANSTO through the National Collaborative Research Infrastructure Strategy (NCRIS). We also acknowledge the field assistance of Savaş Gündüz (Istanbul University) and Emrah Özpolat (Istanbul Technical University). We are greatful to reviewers J. Woodward and J.M. Fernández-Fernández and editor C. O'Cofaigh for their valuable and constructive comments. This work was supported by the Scientific and Technological Research Council of Turkey ( TÜBİTAK 116Y155 ). Computing resources used in this work were provided by the National Center for High-Performance Computing of Turkey (UHeM) under grant number # 4006452019 . We thank the Parallel Ice Sheet Model (PISM) developers at the University of Alaska, Fairbanks, and the Potsdam Institute for Climate Impact Research. The development of PISM is supported by NSF grants PLR-1644277 and PLR-1914668 and NASA grants NNX17AG65G and 20-CRYO2020-0052 . We acknowledge the Australian Government's financial support ( AP11366 ) for the Centre for Accelerator Science at ANSTO through the National Collaborative Research Infrastructure Strategy (NCRIS). We also acknowledge the field assistance of Savaş Gündüz (Istanbul University) and Emrah Özpolat (Istanbul Technical University). We are greatful to reviewers J. Woodward and J.M. Fernández-Fernández and editor C. O'Cofaigh for their valuable and constructive comments.

FinansörlerFinansör numarası
National Center for High-Performance Computing of Turkey
Parallel Ice Sheet Model
Potsdam Institute for Climate Impact Research
National Science FoundationPLR-1914668, PLR-1644277
National Aeronautics and Space AdministrationNNX17AG65G, 20-CRYO2020-0052
Australian GovernmentAP11366
Ulusal Yüksek Başarımlı Hesaplama Merkezi, Istanbul Teknik Üniversitesi4006452019
Istanbul Üniversitesi
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu116Y155
Istanbul Teknik Üniversitesi

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