Holocene Palynology and Pollen-Based Palaeoclimate Reconstruction of Lake Erçek (Eastern Anatolia); Short-Term Climatic Fluctuations and their Relation with Global Palaeoclimatic Change; Results of Cores E1 and E10

Year 2021, Volume: 64 Issue: 3, 253 - 266, 06.08.2021

Güldem Kamar

https://doi.org/10.25288/tjb.927117

Cited By: 4

Abstract

This study is a palynological and stratigraphical investigation of E1 and E10 core samples from the southern part of Lake Erçek (Eastern Anatolia, Turkey). Core samples were taken by a gravity corer from different water depths. Deposits in the core samples include mostly laminated rhythmic sediments, massive and graded layers and a tephra layer from E10 core, representing different time spans because of the faulted ground of the lake. Tentative time scales of the core samples are based on pollen and tephra correlation with Lake Van deposits. According to the palynological investigations, palaeovegetation of Greenlandian is represented by Amaranthaceae-dominant halophytic vegetation and semi-arid palaeoclimate conditions based on pollen analysis around Lake Erçek. The Meghalayan stage is mainly characterized by Poaceae-dominated steppe vegetation and increasing human impact according to anthropogenic pollen indicators. The Meghalayan palaeoclimate of Lake Erçek was more humid than Greenlandian and is represented by maximum deciduous Quercus expansion in recent times around the Lake Erçek area.

Keywords

Holocene, Greenlandian, Lake Erçek, Meghalayan, palynology, palaeoclimate

Supporting Institution

Van Yüzüncü Yıl Üniversitesi

Project Number

MİM-B-075

Thanks

This study was funded by Scientific Research Projects Unit of Van Yüzüncü Yıl University (Project Number: MİM-B-075). I would like to thank my undergraduate students for their helps during field studies.

Erçek Gölü’nün Holosen Palinolojisi ve Polene Dayalı Paleoiklim Yapılandırması (Doğu Anadolu, Türkiye); Kısa Dönem İklim Salınımları ve Global Paleoiklim Değişimleri ile İlişkisi; E1 ve E10 Karotlarının Sonuçları

Abstract

Bu çalışma Erçek Gölü’nün (Doğu Anadolu, Türkiye) güney kesiminden alınan E1ve E10 sediment karotlarının palinolojik ve stratigrafik incelenmesini kapsamaktadır. Karot örnekleri farklı su derinliklerinden gravite karot örnekleyici kullanılarak alınmıştır. Karot örneklerinin litolojisi çoğunlukla laminalı ritmik sediman, masif ve tabakalı seviyeler ile E10 karotunda bulunan tefra seviyesi içermekte ve göl tabanının faylı oluşundan dolayı farklı zaman aralıklarını temsil etmektedir. Karot örneklerinin yaşlandırılması Van Gölü örneklerinin polen ve tefra seviyeleriyle korelasyonuna dayandırılarak belirlenmiştir. Palinolojik inceleme sonuçlarına göre, Erçek Gölü’nün, Grönlandiyen paleovejetasyonu Amaranthaceae familyası baskın halofitik vejetasyon ve yarı kurak paleoiklim koşulları ile temsil edilmektedir. Meghaliyen katı ise Poaceae familyası baskın step vejetasyonu ve antropojenik pollenlere göre artan insan etkisi ile karakterize edilmektedir. Erçek Gölü çevresinde Meghaliyen paleoiklimi Grönlandiyen’den daha nemlidir ve günümüze doğru gelindikçe maksimum yaprak döken Quercus yayılımı ile temsil edilmektedir.

Keywords

Erçek Gölü, Holosen, palinoloji, paleoiklim, Grönlandiyen, Meghaliyen

Project Number

MİM-B-075

References

• Alan, H., Bozkurt, E., Çaglan, D., Dirik, K., Özkaymak, Ç., Sözbilir, H. ve Topal, T. (2011). Report of Van Earthquakes (Tabanlı-Edremit). TMMOB Society of Geological Engineering, Publication, 110, Ankara.
• Beug, H.J. (2004). Leitfaden der Pollenbestimmung. Verlag dr. Friedrich Pfeil (München) Germany.
• Behre, K.E. (1981). The interpretation of anthropogenic indicators in pollen diagrams. Pollen et Spores, 23, 235-247.
• Biltekin, D., Eriş, K. K., Çağatay, M. N., Akçer-Ön, S. & Akkoca, D. B. (2018). Late Pleistocene-Holocene environmental change in eastern Turkey: a multiproxy palaeoecological data of vegetation and lake-catchment changes. Journal of Quaternary Science, 33(5) 575-585. https://doi.org/10.1002/jqs.3037
• Çağatay, M. N., Öğretmen, N., Damcı, E., Stockhecke, M., Sancar, Ü., Eriş, K. K. & Özeren, S. (2014). Lake level and climate records of the last 90 ka from the Northern Basin of Lake Van, eastern Turkey. Quaternary Science Reviews, 104, 97-116. https://doi.org/10.1016/j.quascirev.2014.09.027
• Dean, J. R., Jones M. D., Leng, M. J., Stephen R. Noble, S. R., Metcalfe, S. E., Sloane, H. J., Sahy, D., Eastwood, W. J. & Roberts, C. N. (2015). Eastern Mediterranean hydroclimate over the late glacial and Holocene, reconstructed from the sediments of Nar Lake, central Turkey, using stable isotopes and carbonate mineralogy. Quaternary International, 124, 162-174.
• Djamali, M., de Beaulieu, J-L., Andrieu-Ponel, V., Berberian, M., Miller, NF., Gandouin, E., Lahijani, H., Shah-Hosseini, M., Ponel, P., Salimian, M. & Guiter, F. (2009). A late Holocene pollen record from Lake Almalou in NW Iran: evidence for changing land-use in relation to some historical events during the last 3700 years. Journal Archaeological Science, 36, 1364–1375.
• Ediger, V. S. (1986). Sieving techniques in palynological sample processing with special reference to the MRA system. Micropaleontology, 32(3), 256-270.
• Eken, G., Bozdoğan, M., İsfendiyaroğlu, S., Kılıç, D.T. & Lise, Y. (editörler) (2006). Türkiye’nin Önemli Doğa Alanları. Doğa Derneği.
• Erdtman, G. (1943). An Introduction to Pollen Analysis. Chronica Botanica, New York.
• Eriş, K. K. (2013). Late Pleistocene Holocene sedimentary records of climate and lake-level changes in Lake Hazar, Eastern Anatolia, Turkey. Quaternay International, 302, 123-134.
• Faegri, K. & Iversen, J. (1989). Textbook of Pollen Analysis, fourth ed. Wiley, New York.
• Fiłoc M, Kupryjanowicz M, Szeroczyńska K, Suchora, & Rzodkiewicz, M. (2017). Environmental changes related to the 8.2 ka event and other climate fluctuations during the Middle Holocene: evidence from two dystrophic lakes in NE Poland. The Holocene, 27, 1550–1566. https://doi.org/10.1177/0959683617702233
• Hayrapetyan, N., Hakobyan, E., Kvavadze, E., Gabrielyan, I., Brunch A. A. (2018). Late Holocene environmental changes in the Lake Sevan basin–implications from palynological and carpological analyses of peatbog sediments from Tsovinar-1, Armenia. PRIDE-RCMNS conference Ecosystem isolation and connection: rise and demise of biota in the Pontocaspian-Caucasian region (48).
• İpek, S. & Sarı, M. (1998). Erçek Gölü’nün Batimetrik Özelliklerinin Belirlenmesi (Determination of the bathymetric features of Lake Erçek), (YDABÇAG–609-A). Project of Scientific and Technical Research Council of Turkey.
• Kamar, G. (2018). Palynology of Lake Arin (Eastern Anatolia, Turkey) deposits and its relation with water level change of Lake Van: Preliminary findings. Quaternary International, 486, 83-88.
• Kaplan, G. (2010). Van Gölü Kuzey Havzası’nın Geç Holosen Palinolojisi [Yayımlanmamış Doktora tezi]. Yüzüncü Yıl University.
• Kaplan, G., Örçen, S. (2011). Late Holocene Paleoflora of Lake Van Northern Basin. Bulletin of the Earth Sciences Application and Research Centre of Hacettepe University, 32(2) 139-150.
• Kaplan, G. (2013a). Palynological analysis of the Late Pleistocene terrace deposits of Lake Van, eastern Turkey: Reconstruction of paleovegetation and paleoclimate. Quaternary International, 292, 168-175.
• Kaplan, G. (2013b). Van Gölü Geç Holosen Polenleri. Yerbilimleri (Bulletin of Turkish Earth Sciences), 34(1), 37-52.
• Karaoğlu, Ö., Özdemir, Y., Tolluoğlu, A.Ü., Karabıyıkoğlu, M., Köse, O. & Froger, J. L. (2005). Stratigraphy of the volcanic products around Nemrut Caldera: implications for reconstruction of the caldera formation. Turkish Journal of Earth Science, 14,123–143.
• Kılıç, N. K., Caner, H., Erginal, A. E., Ersin, S., Selim, H, H. & Kaya, H. (2018). Environmental changes based on multi-proxy analysis of core sediments in Lake Aktaş, Turkey: Preliminary results. Quaternary International, 486, 89-97.
• Koçyiğit, A., Yılmaz, A., Adamia, S. & Kuloshvili, S. (2001). Neotectonics of east Anatolian plateau (Turkey) and lesser Caucasus: implication for transition from thrusting to strike-slip faulting. Geodinamica Acta, 14(1-3), 177-195.
• Landmann, G., Reimer, A., Lemcke, G. & Kempe, S. (1996a). Dating Late Glacial abrupt climate changes in the 14, 570 years long continuous varve record of Lake Van/ Turkey. Palaeogeography Palaeoclimatology Palaeoecology, 2, 107-118.
• Landmann, G., Reimer, A. & Kempe, S. (1996b). Climatic induced lake level changes of Lake Van/Turkey during the transition Pleistocene/Holocene. Global Biogeochemical Cycles, 10(4), 797-808.
• Landmann, G., Steinhauser, G., Sterba, J.H, Kempe, S. & Bichler, M. (2011). Geochemical fingerprints by activation analysis of tephra layers in Lake Van sediments, Turkey. Applied Radiation Isotopes, 69, 929-935.
• Litt, T., Krastel, S., Sturm, M., Kipfer, R., Örcen, S., Heumann, G., Franz, S. O., Ülgen, U. B. & Niessen, F. (2009). ‘PALEOVAN’, International Continental Scientific Drilling Program (ICDP): site survey results and perspectives. Quaternary Science Reviews, 28, 1555-1567.
• Litt, T., Pickarski, N. & Heumann, G. (2014). A 600,000 Year Long Continental Pollen Record from Lake Van, Eastern Anatolia (Turkey). Quaternary Science Reviews, 104, 30-41.
• Makaroğlu, Ö., Çağatay, M. N., Nowaczyk, N. R., Pesonen, L. J. & Orbay, N. (2018). Discrimination of Holocene tephra units in Lake Van using mineral magnetic analysis. Quaternary International, 486, 44–56.
• Mayewski, P.A.; Rohling, E.E.; Stager, J.C., …, Steig, E. J. (2004). Holocene climate variability. Quaternary Research, 62(3), 243-255. https://doi.org/10.1016/j.yqres.2004.07.001
• Migowski, C., Stein, M., Prasad, S., Negendank, J. & Agnon, A. (2006) Holocene climate variability and cultural evolution in the Near East from the Dead Sea sedimentary record. Quaternary Research, 66, 421-431.
• Moore, P. D. & Webb, J. A. & Collinson, M. E. (1991). Pollen Analysis, second edition. Blackwell, Oxford UK.
• Muradoğlu, F. ve Balta, F. (2010). Ahlat (Bitlis) Yöresinden Selekte Edilen Cevizlerin (Juglans regia L) Bazı Fiziksel ve Kimyasal Özellikleri. YYÜ Journal of Agricultural Science, 20(1), 41-45.
• Ocakoğlu, F., Kır, O., Yılmaz, İ. Ö., Açıkalın, S., Erayık, C., Tunoğlu, C. & Suzanne Leroy, S.A.G. (2013). Early to Mid-Holocene Lake level and temperature records from the terraces of Lake Sünnet in NW Turkey. Quaternay International, 369, 175-184.
• Okuldaş, C. ve Üner, S. (2013). Alaköy Fayı’nın Jeomorfolojik Özellikleri ve Tektonik Etkinliği (Van Gölü Havzası – Doğu Anadolu). Bulletin of the Earth Sciences Application and Research Centre of Hacettepe University, 34(3), 161-176.
• Ön, Z. B., & Özeren, M. S. (2019). Temperature and precipitation variability in eastern Anatolia: Results from independent component analysis of Lake Van sediment data spanning the last 250 kyr BP. Quaternary International, 514(2019) 119-129.
• Ön, Z., Özeren, M., Akçer Ön, S. & Çağatay, M. (2017) Spectral Features of 250 kyr Long Lake Van Sediments: Milankovitch Cycles and Their Harmonics. Geological Bulletin of Turkey, 60(4) 471-488. https://doi.org/10.25288/tjb.360604
• Park, J., Park, J., Yi, S., Kim, J. C., Lee, E. & Jin, Q. (2018). The 8.2 ka cooling event in coastal East Asia: High-resolution polen evidence from southwestern Korea. Scientific Reports, 8, 12423.
• Pickarski, N., Kwiecien, O., Djamali, M. & Litt, T. (2015). Vegetation and environmental changes during the last interglacial in eastern Anatolia (Turkey): a new high-resolution polen record from Lake Van. Palaeogeography Palaeoclimatology Palaeoecology. 435, 145–158.
• Ramezani, E., Mrotzek, A., Mohadjer, M. R. M., Kakroodi, A.A., Kroonenberg, B. S. & Joosten, H. (2016). Between the mountains and the sea: Late Holocene Caspian Sea level fluctuations and vegetation history of the lowland forests of northern Iran. Quaternary International, 408, 52-64.
• Sağlam Selçuk. A. (2016). Evaluation of the relative tectonic activity in the eastern Lake Van basin, East Turkey. Geomorphology, 270, 9-21.
• Schmincke, H.U. & Sumita, M. & Paleovan scientific team (2014). Impact of volcanism on the evolution of Lake Van (eastern Anatolia) III: periodic (Nemrut) vs. episodic (Süphan) explosive eruptions and climate forcing reflected in a tephra gap between ca. 14 ka and ca. 30 ka. Journal of Volcanology and Geothermal Research, 285, 195-213.
• Sumita, M. & Schmincke, H.-U. (2013). Impact of volcanism on the evolution of Lake Van II: temporal evolution of explosive volcanism of Nemrut Volcano (eastern Anatolia) during the past ca. 0.4 Ma. Journal of Volcanology and Geothermal Research, 253, 15-34.
• Şaroğlu, F. ve Yılmaz, Y. (1986). Doǧu Anadolu'da neotektonik dönemdeki jeolojik evrim ve havza modelleri. Bulletin of the Mineral Research and Exploration, 107, 73–94.
• Şengör, A.M.C. & Yılmaz, Y. (1981). Tethyan evolution of Turkey: a plate tectonic approach. Tectonophysics, 75,181–190 (193–199, 203–241).
• Şensoy, S., Demircan, M., Ulupınar, Y. (2021). Climate of Turkey. Turkish State Meteorological Service. http://www.emcc.mgm.gov.tr/files/climateofturkey.pdf
• Talebi, T., Ramezani, E., Djamali, M., Lahijani H. A. K., Naqinezhad, A., Alizadeh, K. & Andrieu-Ponel, V. (2016). The Late-Holocene climate change, vegetation dynamics, lake-level changes and anthropogenic impacts in the Lake Urmia region, NW Iran. Quaternary International, 408, 40-51.
• Tatlı, A., 2004. Türkiye Vejetasyonu (Vegetation of Turkey) 2. Baskı. Bizim Büro Basımevi Kütahya, 142 s.
• Toker, M., Pınar, A. & Tur, H. (2017). Source mechanisms and faulting analysis of the aftershocks in the Lake Erçek area (Eastern Anatolia, Turkey) during the 2011 Van event (Mw 7.1): implications for the regional stress field and ongoing deformation processes. Journal of Asian Earth Science, 150, 73–86.
• Toker, M. & Tur, H. (2018). Structural patterns of the Lake Erçek Basin, Eastern Anatolia (Turkey): evidence from single-channel seismic interpretation. Marine Geophysical Research, 39, 567-588.
• Ülgen, U. B., Franz, S. O., Biltekin, D., Cagatay, M. N., Roeser, P. A., Doner, L. & Thein, J., (2012). Climatic and environmental evolution of Lake İznik (NW Turkey) over the last similar to 4700 years. Quaternary International, 274, 88-101.
• Weninger, B., Alram-Stern, E., Bauer, E., Clare, L., Danzeglocke, U., Jöris, O., Kubatzki, C., Rollefson, G., Todorova, H. & van Andel, T. (2006). Climate forcing due to the 8200 cal yr BP event observed at Early Neolithic sites in the eastern Mediterranean. Quaternary Research, 66, 401–420.
• Wick, L., Lemcke, G. & Sturm, M. (2003). Evidence of Lateglacial and Holocene climatic change and human impact in eastern Anatolia: high resolution pollen, charcoal, isotopic and geochemical records from the laminated sediments of Lake Van. The Holocene, 13, 665-675.
• Wodehouse, R. P. (1935.) Pollen. Their Structure, Identification and Significance in Science and Medicine. McGraw-Hill Book Company, New York and London.
• van Zeist, W. & Woldring, H. (1978). A polen Profil From Lake Van: A Preliminary Report. In E.T. Degens & F. Kurtman (Eds.), The Geology of Lake Van, (pp. 115-123). MTA Enstitüsü Yayınları no: 169.
• Yılmaz, Y., Şaroǧlu, F. & Güner, Y. (1987). Initiation of the neomagmatism in East Anatolia. Tectonophysics, 134, 177–199.