Varve chronology during the late Allerød to early Preboreal from sediment core GOS18 in Lake Gościąż, Poland
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2020
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| author | Müller, Daniela Tjallingii, Rik Płóciennik, Mateusz Luoto, Tomi P Kotrys, Bartosz Plessen, Birgit Ramisch, Arne Schwab, Markus J Błaszkiewicz, Mirosław Słowiński, Michał Brauer, Achim |
| author_facet | Müller, Daniela Tjallingii, Rik Płóciennik, Mateusz Luoto, Tomi P Kotrys, Bartosz Plessen, Birgit Ramisch, Arne Schwab, Markus J Błaszkiewicz, Mirosław Słowiński, Michał Brauer, Achim |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | These datasets provide data for the lowest part of a new composite profile GOS18 from Lake Gościąż in central Poland. The composite profile was established using sediment cores recovered in 2015 and 2018 with an UWITEC Piston Corer at 19.6-21.5 m water depth (Bonk et al., in press). Our data covers the time interval from the onset of lacustrine sedimentation in the late Allerød to the early Preboreal. Since Lake Gościąż comprises a continuous, seasonally resolved (varved) and exceptionally well-preserved archive of the Younger Dryas (YD) climate variation, it is highly suitable for detailed investigations of lake system responses during periods of rapid climate cooling (YD onset) and warming (YD termination), respectively. Our varve chronology is the lowest part of a new floating varve chronology established for Lake Gościąż (central Poland) that has been anchored to the absolute time scale through radiocarbon dating and age modelling (Bonk et al., in press). The here presented varve chronology reaches from the onset of lacustrine sedimentation in the late Allerød until the early Preboreal. Uncertainties for the absolute ages are derived from radiocarbon age modelling and varve counting. The internal varve counting uncertainty for the observed time interval is generally low (+14/-22) due to the mostly excellent varve preservation. Microfacies analyses, including varve counting and measurements of varve and sublayer thickness, have been performed on overlapping large-scale thin sections under an Axioplan 2 and Axiolab pol imaging microscope at magnifications of 50-400x. Thin sections have been prepared from 10 cm long freeze-dried and resin impregnated sediment slices (Brauer & Casanova 2001; doi:10.1023/A:1008136029735). The dataset incorporates the composite depth, age [BP] and age uncertainties [BP] for the varve bottom, the total varve thickness, selected sublayer thicknesses, detrital sublayer occurrence, the different varve types and the varve quality index (VQI). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_924343 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Varve chronology during the late Allerød to early Preboreal from sediment core GOS18 in Lake Gościąż, Poland Müller, Daniela Tjallingii, Rik Płóciennik, Mateusz Luoto, Tomi P Kotrys, Bartosz Plessen, Birgit Ramisch, Arne Schwab, Markus J Błaszkiewicz, Mirosław Słowiński, Michał Brauer, Achim AGE; Age, uncertainty maximum/old; Age, uncertainty minimum/young; Axioplan 2 and Axiolab pol imaging microscopes; chironomid-inferred temperature reconstructions; Depth, composite; GOS18_composite; Lake Gościąż; Lake Gościąż, Poland; microfacies analyses; PCUWI; Piston corer, UWITEC; Poland; varve chronology; Varve quality index; Varve sub-layer occurrence; Varve thickness; Varve thickness, amorphous organic matter sub-layer; Varve thickness, calcite sub-layer; Varve thickness, diatoms sub-layer; Varve type; δ13Corg; δ18Ocarb These datasets provide data for the lowest part of a new composite profile GOS18 from Lake Gościąż in central Poland. The composite profile was established using sediment cores recovered in 2015 and 2018 with an UWITEC Piston Corer at 19.6-21.5 m water depth (Bonk et al., in press). Our data covers the time interval from the onset of lacustrine sedimentation in the late Allerød to the early Preboreal. Since Lake Gościąż comprises a continuous, seasonally resolved (varved) and exceptionally well-preserved archive of the Younger Dryas (YD) climate variation, it is highly suitable for detailed investigations of lake system responses during periods of rapid climate cooling (YD onset) and warming (YD termination), respectively. Our varve chronology is the lowest part of a new floating varve chronology established for Lake Gościąż (central Poland) that has been anchored to the absolute time scale through radiocarbon dating and age modelling (Bonk et al., in press). The here presented varve chronology reaches from the onset of lacustrine sedimentation in the late Allerød until the early Preboreal. Uncertainties for the absolute ages are derived from radiocarbon age modelling and varve counting. The internal varve counting uncertainty for the observed time interval is generally low (+14/-22) due to the mostly excellent varve preservation. Microfacies analyses, including varve counting and measurements of varve and sublayer thickness, have been performed on overlapping large-scale thin sections under an Axioplan 2 and Axiolab pol imaging microscope at magnifications of 50-400x. Thin sections have been prepared from 10 cm long freeze-dried and resin impregnated sediment slices (Brauer & Casanova 2001; doi:10.1023/A:1008136029735). The dataset incorporates the composite depth, age [BP] and age uncertainties [BP] for the varve bottom, the total varve thickness, selected sublayer thicknesses, detrital sublayer occurrence, the different varve types and the varve quality index (VQI). |
| title | Varve chronology during the late Allerød to early Preboreal from sediment core GOS18 in Lake Gościąż, Poland |
| topic | AGE; Age, uncertainty maximum/old; Age, uncertainty minimum/young; Axioplan 2 and Axiolab pol imaging microscopes; chironomid-inferred temperature reconstructions; Depth, composite; GOS18_composite; Lake Gościąż; Lake Gościąż, Poland; microfacies analyses; PCUWI; Piston corer, UWITEC; Poland; varve chronology; Varve quality index; Varve sub-layer occurrence; Varve thickness; Varve thickness, amorphous organic matter sub-layer; Varve thickness, calcite sub-layer; Varve thickness, diatoms sub-layer; Varve type; δ13Corg; δ18Ocarb |
| url | https://doi.org/10.1594/PANGAEA.924343 |