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100			_aPíšková, Anna _952000
245			_aLate-Holocene palaeoenvironmental changes at Lake Esmeralda (Vega Island, Antarctic Peninsula) based on a multi-proxy analysis of laminated lake sediment/
260			_bSage, _c2019.
300			_aVol 29, issue 7, 2019 : (1155-1175 p.).
520			_aWe have studied laminated sediments from Lake Esmeralda, Vega Island, in order to reconstruct its history. We describe both inorganic and organic components of the sediment using a combination of the following analytical methods: x-ray fluorescence (XRF), x-ray diffraction (XRD), magnetic susceptibility measurement, chemical analysis for determination of cation exchange capacity, grain size determination, geochemical analyses (total inorganic carbon (TIC), total organic carbon (TOC), total sulphur (TS)), spectrophotometry, high-pressure liquid chromatography, and diatom assemblage and faunal remains characterization. The geochronology of the core was based on modelling optically stimulated luminescence ages and supported by laminae counting. The dating results imply a maximum age of ~400 years for the 177-cm long core and a period covered of ~200 years, suggesting (quasi-)annual laminae formation. Such a young age contradicts previous findings based on radiocarbon dating. Geomorphological evidence indicates that river capture isolated the lake catchment from upslope sediment delivery, effectively terminating accumulation ~230 years ago. Conversely, our short-term palaeoenvironmental record yields a subdecadal temporal resolution, which is unparalleled in comparison with other Antarctic palaeolimnological studies. Our interpretations of the geochemical and mineralogical proxy data give us insight into the past lake catchment and waterbody evolution, and lead us to recognize periods of enhanced weathering, bottom anoxia and to distinguish major lake level changes.
650			_aAntarctica, _952001
650			_a lake sediment, _952002
650			_aOSL, _951952
650			_apalaeolimnology, _952003
650			_a late-Holocene climate, _952004
650			_a river piracy _952005
700			_aRoman, Matěj _952006
700			_aBulínová, Marie _952007
700			_aPokorný, Matěj _952008
700			_aSanderson,, David _952009
700			_a Cresswell, Alan _952010
700			_aLirio, Juan Manuel _952011
700			_aCoria, Silvia Herminda _952012
700			_aNedbalová, Linda _952013
700			_a Lami, Andrea _952014
700			_aMusazzi, Simona _952015
700			_a Vijver, Bart Van de _952016
700			_aNývlt, Daniel _952017
700			_aKopalová, Kateřina _952018
773	0		_012756 _916504 _dLondon: Sage Publication Ltd, 2019. _tHolocene/ _x09596836
856			_uhttps://doi.org/10.1177/0959683619838033
942			_2ddc _cART
999			_c12837 _d12837