Peer-reviewed articles 17,970 +


Title: HOLOCENE LACUSTRINE SEDIMENTATION PATTERNS ON LORI PLATEAU (SOUTH CAUCASUS)
HOLOCENE LACUSTRINE SEDIMENTATION PATTERNS ON LORI PLATEAU (SOUTH CAUCASUS)

PlumX Article Metrics by Elsevier
Grigory Fedorov; Dmitry Sadokov; Vsevolod Rudakov; Irina Fedorova; Larisa Ghazaryan
10.5593/sgem2024/1.1/s01.13
10.5593/sgem2024/1.1
1314-2704
978-619-7603-67-5
English
24
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
1.Geology
This study provides a characterization of the Holocene sedimentary processes in Lake Urasar (Lori plateau, Armenia). Lake Urasar is less than 0.1 sq. km with 8.5 m max. depth. 2 m -long sediment core was retrieved by using peat corer in the deepest part of the lake during summer 2023. Obtained core was a subject for detailed lithological description and XRF-scanning. Three lithological units are identified in the sediment sequence reflecting different sedimentation patterns. Unit I (200 – 164 cm) characterized by frequent changes in the chemical elements concentrations and reflects sensitivity to the regional climate changes, which had been expressed as shifts in the eolian input rate, and surface soil fixation. Decrease of Fe and Ti values with less pronounced regular oscillations can be seen upcore in the Unit II (163 – 62 cm), which might be a clue for a decreased mineragenic input (for example, in the course of forest expansion and / or montane-steppe soil formation). Geochemical characteristics of the muddy uppermost deposits of Unit III reflect repeated disturbance and mixing.
[1] Szabo Z., Buczko K., Haliuc A., Pal I., Korponai J. L., Begy R.-C., Veres D., Luoto T. P., Zsigmond A. R., Magyari E.K. Ecosystem shift of a mountain lake under climate and human pressure: A move out from the safe operating space, Science of the Total Environment, 743, 140584, 2020
[2] Leroyer C., Joannin S., Aoustin D., Ali A. A., Peyron O., Ollivier V., Tozalakyan P., Karakhanyan A., Fany J. Mid Holocene vegetation reconstruction from Vanevan peat (south eastern shore of Lake Sevan, Armenia), Quaternary International, 395, pp. 5-18, 2016 http://dx.doi.org/10.1016/j.quaint.2015.06.008
[3] Robles M., Peyron O., Brugiapaglia E., Menot G., Dugerdil L., Ollivier V., Ansanay-Alex S., Develle A.-L., Tozalakyan P., Meliksetian K., Sahakyan K., Sahakyan L., Perello B., Badalyan R., Colombie C., Joannin S. Impact of climate changes on vegetation and human societies during the Holocene in the South Caucasus (Vanevan, Armenia): A multiproxy approach including pollen, NPPs and brGDGTs, Quaternary Science Reviews. Volume 277, 107297, 2022 https://doi.org/10.1016/j.quascirev.2021.107297.
[4] Sapelko T. V., Boynagryan V. R., Naumenko M. A., Sevastyanov D. V., Gabrielyan I. G., Piloyan A. S., Margaryan L. A., Aleksandrin M. Yu., Terekhov A. V. First Multy-Proxy Studies of High-Mountain Lakes in Armenia: Preliminary Results, Geography, Environment, Sustainability, Vol.12, No 4, pp. 272-284, 2019
[5] Joannin S., Ali A.A., Ollivier V., Roiron P., Peyron O., Chevaux S., Nahapetyan S., Tozalakyan P., Karakhanyan A., Chataigner C., Vegetation, fire and climate history of the Lesser Caucasus: a new Holocene record from Zarishat fen (Armenia), Journal of Quaternary Scicience, 29, pp. 70-82. 2014 https://doi.org/10.1002/jqs.2679
[6] Strategy of Specially Protected Areas of the Republic of Armenia, State Program for the Protection and Use of the Sphere (est. by RA Government decision N 1059-A, Sept. 25, 2014) (https://www.arlis.am/DocumentView.aspx?DocID=93166) [in Armenian]
[7] Freyhof J., Khorozyan I., Fayvush G. Freshwater Ecosystems and Biodiversity: Atlas of Freshwater Key Biodiversity Areas in Armenia. Yerevan. WWF-Armenia, p. 38, 2015.
[8] Important Bird Areas in Armenia. BirdLife International database. Available online at: http://datazone.birdlife.org/country/armenia (Accessed: 20.12.2021)
[9] Kylander M., Ampel L., Wohlfarth B., Veres D. High-resolution X-ray fluorescence core scanning analysis of Les Echets (France) sedimentary sequence: new insights from chemical proxies, Journal of Quaternary Science, 26, pp.109–117, 2011 doi:10.1002/jqs.1438
[10] Davies S. J., Lamb H. F., Roberts S. J. Micro-XRF core scanning in palaeolimnology: recent developments / Micro-XRF studies of sediment cores: applications of a non-destructive tool for the environmental sciences, Developments in palaeoenvironmental research. - I.W. Croudace, R.G. Rothwell. (Eds.), Vol. 17, pp. 189-226, 2015
[11] Melles M., Brigham-Grette J., Minyuk P. S., Nowaczyk N. R., Wennrich V., Andreev A. A., Coletti A., Cook T. L., Haltia-Hovi E., Kukkonen M., Lohzkin A. V., Rosen P., Tarasov P., Vogel H., Wagner B. 2.8 million years of Arctic climate change from Lake El’gygytgyn, NE Russia, Science, 337, pp. 315–320, 2012 doi:10.1126/science.1222135
[12] Naeher S., Gilli A., North R. P., Hamann Y., Schubert C. J. Tracing bottom water oxygenation with sedimentary Mn/Fe ratios in Lake Zurich, Switzerland, Chemical Geology, Vol. 352, No. 16, pp.125-133, 2013
[13] Burnett A., Soreghan M., Scholz C., Brown E. Tropical East African climate change and its relation to global climate: a record from Lake Tanganyika, tropical East Africa, over the past 90 + kyr, Palaeogeography Palaeoclimatology Palaeoecology, 303, 155167, 2011 doi:10.1016/j.palaeo.2010.02.011
The work is supported by the Ministry of Education, Science, Culture and Sports of Armenia, Higher Education and Science Committee in the frame of research project “Impact of past and current trenchant climatic and environmental changes on Armenian Highland Lake ecosystems – IMPACT” (23IRF-1E02). The authors are sincerely grateful to Prof. M. Melles, Prof. B. Wagner, N. Mantke and J. Feller from the Institute of Geology and Mineralogy of the University of Cologne for the opportunity to perform XRF - scanning of the core.
conference
https://doi.org/10.5593/sgem2024/1.1/s01.13
Download PDF
Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
91-98
1 - 7 July, 2024
website
9843
lacustrine sedimentation, Holocene, Lori Plateau, South Caucasus, Lake Urasar

24th SGEM International Conference on Earth & Planetary Sciences


International GeoConference SGEM2024
28 June - 8 July, 2024 / Albena, Bulgaria

Read More		   

SGEM Vienna GREEN "Green Science for Green Life"


Extended Scientific Sessions SGEM Vienna GREEN
25 - 29 November, 2024 / Vienna, Austria

Read More
   

A scientific platform for Art-Inspired Scientists!


The Magical World Where Science meets Art
Vienna, Austria

Read More