Shallow depositional basins as potential archives of
palaeoenvironmental changes in southwestern Greenland over the
last 800 years

J 2021

Shallow depositional basins as potential archives of palaeoenvironmental changes in southwestern Greenland over the last 800 years

ROMAN, Matěj, Barbora HUTŇAN CHATTOVÁ, Jiří LEHEJČEK, Václav TEJNECKÝ, Daniel VONDRÁK et. al.

Základní údaje

Originální název

Shallow depositional basins as potential archives of palaeoenvironmental changes in southwestern Greenland over the last 800 years

Autoři

ROMAN, Matěj (203 Česká republika, garant, domácí), Barbora HUTŇAN CHATTOVÁ (203 Česká republika, domácí), Jiří LEHEJČEK, Václav TEJNECKÝ, Daniel VONDRÁK, Petra LULÁKOVÁ, Karel NĚMEČEK, Jakub HOUŠKA, Ondřej DRÁBEK a Daniel NÝVLT (203 Česká republika, domácí)

Vydání

Boreas, Hoboken, Wiley, 2021, 0300-9483

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10510 Climatic research

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.645

Kód RIV

RIV/00216224:14310/21:00120914

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1111/bor.12483

UT WoS

000587342500001

Klíčová slova anglicky

palaeoenvironmental changes; southwestern Greenland

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 11. 2. 2021 15:56, Mgr. Marie Šípková, DiS.

Anotace

V originále

The Arctic, one of the most sensitive components of the Earth's climate system, experienced pronounced climatic fluctuations during the Late Holocene. In order to obtain a detailed record of past environmental and climatic variability, sedimentary cores from two interconnected infilled depositional basins in the Kobbefjord area, southwestern Greenland, were retrieved and subjected to a multi-proxy investigation. The absolute chronostratigraphy was established through radiocarbon (C-14) and short-lived radioisotope (Pb-210, Cs-137) dating. We also analysed magnetic susceptibility, grain size, X-ray fluorescence element composition, total content of carbon, nitrogen and sulphur, biogenic silica and diatom assemblages. The palaeoenvironmental reconstruction presented from the upper basin records similar to 800 years of sedimentation in a former shallow Arctic lake/pond that was modulated by catchment processes and regional hydroclimate. The record is dominated by alternating periods of increased organic and clastic deposition, suggesting warmer/drier and colder/wetter climate, respectively. Comparison of our records with other proxy-based lacustrine, marine and glacier records and instrumental measurements from Greenland and the North Atlantic reveals common climatic trends, consistent with the inferred North Atlantic Oscillation pattern. Periods at similar to 800-600, similar to 320-220 and similar to 140-30 cal. a BP correspond to the main cold phases. The earliest climatic deterioration coincides with the demise of the nearby Norse Western Settlement. The most recent cold period represents the culmination of the Little Ice Age with the maximum Holocene advances of Greenland glaciers. Ameliorated conditions predominated at similar to 550-320 and similar to 220-140 cal. a BP. The evolution of both water bodies is concluded by transition into oligotrophic peat bogs after complete infilling of the basins at similar to 30 cal. a BP. Despite differences in proxy signals between the coring sites, this study endorses the usefulness of shallow lake/pond sediments from infilled basins for environmental reconstructions, as long as local depositional processes do not mask the external driving factors.

Návaznosti

EF16_013/0001708, projekt VaV

Název: ECOPOLARIS - Změny ve struktuře a funkci součástí terestrických polárních ekosystémů (CzechPolar2)

LM2015078, projekt VaV

Název: Česká polární výzkumná infrastruktura (Akronym: CzechPolar2)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Czech Polar Research Infrastructure

MUNI/A/1356/2019, interní kód MU

Název: Výzkum proměn geografických procesů a vztahů v prostoru a čase (Akronym: Progeo)

Investor: Masarykova univerzita, Výzkum proměn geografických procesů a vztahů v prostoru a čase, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty

Citovat

ROMAN, Matěj, Barbora HUTŇAN CHATTOVÁ, Jiří LEHEJČEK, Václav TEJNECKÝ, Daniel VONDRÁK, Petra LULÁKOVÁ, Karel NĚMEČEK, Jakub HOUŠKA, Ondřej DRÁBEK a Daniel NÝVLT. Shallow depositional basins as potential archives of palaeoenvironmental changes in southwestern Greenland over the last 800 years. Boreas. Hoboken: Wiley, 2021, roč. 50, č. 1, s. 262-278. ISSN 0300-9483. Dostupné z: https://dx.doi.org/10.1111/bor.12483.

@article{1719616,
   author = {Roman, Matěj and Hutňan Chattová, Barbora and Lehejček, Jiří and Tejnecký, Václav and Vondrák, Daniel and Luláková, Petra and Němeček, Karel and Houška, Jakub and Drábek, Ondřej and Nývlt, Daniel},
   article_location = {Hoboken},
   article_number = {1},
   doi = {http://dx.doi.org/10.1111/bor.12483},
   keywords = {palaeoenvironmental changes; southwestern Greenland},
   language = {eng},
   issn = {0300-9483},
   journal = {Boreas},
   title = {Shallow depositional basins as potential archives of palaeoenvironmental changes in southwestern Greenland over the last 800 years},
   url = {https://doi.org/10.1111/bor.12483},
   volume = {50},
   year = {2021}
}

TY  - JOUR
ID  - 1719616
AU  - Roman, Matěj - Hutňan Chattová, Barbora - Lehejček, Jiří - Tejnecký, Václav - Vondrák, Daniel - Luláková, Petra - Němeček, Karel - Houška, Jakub - Drábek, Ondřej - Nývlt, Daniel
PY  - 2021
TI  - Shallow depositional basins as potential archives of palaeoenvironmental changes in southwestern Greenland over the last 800 years
JF  - Boreas
VL  - 50
IS  - 1
SP  - 262-278
EP  - 262-278
PB  - Wiley
SN  - 03009483
KW  - palaeoenvironmental changes
KW  - southwestern Greenland
UR  - https://doi.org/10.1111/bor.12483
L2  - https://doi.org/10.1111/bor.12483
N2  - The Arctic, one of the most sensitive components of the Earth's climate system, experienced pronounced climatic fluctuations during the Late Holocene. In order to obtain a detailed record of past environmental and climatic variability, sedimentary cores from two interconnected infilled depositional basins in the Kobbefjord area, southwestern Greenland, were retrieved and subjected to a multi-proxy investigation. The absolute chronostratigraphy was established through radiocarbon (C-14) and short-lived radioisotope (Pb-210, Cs-137) dating. We also analysed magnetic susceptibility, grain size, X-ray fluorescence element composition, total content of carbon, nitrogen and sulphur, biogenic silica and diatom assemblages. The palaeoenvironmental reconstruction presented from the upper basin records similar to 800 years of sedimentation in a former shallow Arctic lake/pond that was modulated by catchment processes and regional hydroclimate. The record is dominated by alternating periods of increased organic and clastic deposition, suggesting warmer/drier and colder/wetter climate, respectively. Comparison of our records with other proxy-based lacustrine, marine and glacier records and instrumental measurements from Greenland and the North Atlantic reveals common climatic trends, consistent with the inferred North Atlantic Oscillation pattern. Periods at similar to 800-600, similar to 320-220 and similar to 140-30 cal. a BP correspond to the main cold phases. The earliest climatic deterioration coincides with the demise of the nearby Norse Western Settlement. The most recent cold period represents the culmination of the Little Ice Age with the maximum Holocene advances of Greenland glaciers. Ameliorated conditions predominated at similar to 550-320 and similar to 220-140 cal. a BP. The evolution of both water bodies is concluded by transition into oligotrophic peat bogs after complete infilling of the basins at similar to 30 cal. a BP. Despite differences in proxy signals between the coring sites, this study endorses the usefulness of shallow lake/pond sediments from infilled basins for environmental reconstructions, as long as local depositional processes do not mask the external driving factors.
ER  -

ROMAN, Matěj, Barbora HUTŇAN CHATTOVÁ, Jiří LEHEJČEK, Václav TEJNECKÝ, Daniel VONDRÁK, Petra LULÁKOVÁ, Karel NĚMEČEK, Jakub HOUŠKA, Ondřej DRÁBEK a Daniel NÝVLT. Shallow depositional basins as potential archives of palaeoenvironmental changes in southwestern Greenland over the last 800 years. \textit{Boreas}. Hoboken: Wiley, 2021, roč.~50, č.~1, s.~262-278. ISSN~0300-9483. Dostupné z: https://dx.doi.org/10.1111/bor.12483.

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