High-resolution geochemical (mu XRF) and palynological analyses for climatic and environmental changes in lake sediments from Sultansazhgi Marsh (Central Anatolia) during the last 14.5 kyr


ŞENKUL Ç., Gurboga S., DOĞAN M., Dogan T.

QUATERNARY INTERNATIONAL, vol.613, pp.24-38, 2022 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 613
  • Publication Date: 2022
  • Doi Number: 10.1016/j.quaint.2021.08.010
  • Journal Name: QUATERNARY INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, Aquatic Science & Fisheries Abstracts (ASFA), Artic & Antarctic Regions, Geobase, INSPEC
  • Page Numbers: pp.24-38
  • Keywords: Lateglacial, Holocene, Rapid climate change (RCC), Sediment core, Geochemistry, Turkey, EASTERN MEDITERRANEAN REGION, LATE-HOLOCENE CLIMATE, OXYGEN-ISOTOPE COMPOSITION, LAGUNA POTROK-AIKE, IZNIK NW TURKEY, LATE PLEISTOCENE, SOREQ CAVE, GLACIAL MAXIMUM, HUMAN IMPACT, LAMINATED SEDIMENTS

Abstract

Multi-proxy analyses of Sultansazligi Marsh sedimentary sequence covering the last similar to 14.5 kyr documents climatic and environmental changes in Central Anatolia (Turkey) and can be correlated with Holocene Rapid Climate Changes (RCCs). Well-correlated geochemical compositions (tARF), pollen and lithological analyses, together with an age-depth model, were used to determine the time intervals of cold, dry, warm, and wet conditions in Sultansazligi. Geochemical and pollen data including Younger Dryas (YD) revealed 9 arid periods RCCs; 11.1 ka, 10.3 ka, 9.3 ka, 8.2 ka, 7.3 ka (for this study), 6.5 ka (for this study), 5.9 ka, 4.2 ka, and 2.8 ka. The analysis of glacial advance during the Lateglacial suggests that the climate was cold and wet. YD and two more hiatuses have been accurately determined from the mu XRF geochemical proxies. However, YD cold period does not show severe conditions like in other areas in the world. Moreover, the other two hiatuses were clearly determined between Early- Middle and inside the Middle Holocene. In general, the period after 9.8 ka indicates warming conditions towards the recent with some fluctuations compared to an overall trend of the climate.