Mangili, Clara; Plessen, Birgit; Wolff, Christian; Brauer, Achim (2010): Oxygen isotope ratios on calcite from the Piànico lake record [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.743135, Supplement to: Mangili, C et al. (2010): Climatic implications of annual to decadal resolution stable isotope data from calcite varves of the Piànico interglacial lake record, Southern Alps. Global and Planetary Change, 71, 168-174, https://doi.org/10.1016/j.gloplacha.2010.01.027
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Abstract:
Stable oxygen isotope analyses at annual, 2-, 5-, 10- and 20-varve sample resolutions were carried out on two selected varve intervals from the interglacial sediment record of the Piànico palaeolake. These sediments are particularly suitable for ultra-high-resolution isotope analyses on lacustrine endogenic calcite because of the exceptionally well-preserved varve structure. A bias through detrital contamination can be excluded because microscopically controlled sampling enabled selecting detritus-free samples. The studied sediment intervals comprise 352 and 88 continuous varve series formed during periods of rapid climate change at the onset and end of a marked millennial-scale cool interval during the Piànico Interglacial. The most intriguing result is a pronounced short-term oscillation in the bi-annually resolved isotope record superimposed on the general decreasing and increasing d18O trends at the climatic transitions that is recorded at lower sample resolution. Spectral analyses of the bi-annual time series reveal periodicities indicating solar and NAO controls on the d18O record. Multiple d18O measurements from endogenic calcite of individual varves showed variations of up to 0.6 per mil, thus larger than the observed inter-annual variability and most likely explained by seasonal effects.
Other version:
Mangili, Clara; Plessen, Birgit; Wolff, Christian; Brauer, Achim (2010): Supplementary material to Mangili et al. (2010): Climatic implications of annual to decadal resolution stable isotope data from calcite varves of the Piànico interglacial lake record, Southern Alps. Deutsches GeoForschungsZentrum GFZ, https://doi.org/10.1594/GFZ.SDDB.1301
Coverage:
Latitude: 45.813800 * Longitude: 10.036400
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Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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8 datasets
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Datasets listed in this publication series
- Mangili, C; Plessen, B; Wolff, C et al. (2010): Fig. 4a. 5 years varve low resolution. https://doi.org/10.1594/PANGAEA.743130
- Mangili, C; Plessen, B; Wolff, C et al. (2010): Fig. 4b. 5 years varve high resolution at the begin of PMO. https://doi.org/10.1594/PANGAEA.743202
- Mangili, C; Plessen, B; Wolff, C et al. (2010): Fig. 4b. 10 years varve resolution at the begin of PMO. https://doi.org/10.1594/PANGAEA.743134
- Mangili, C; Plessen, B; Wolff, C et al. (2010): Fig. 4c. 5 years varve high resolution at the end of PMO. https://doi.org/10.1594/PANGAEA.743133
- Mangili, C; Plessen, B; Wolff, C et al. (2010): Fig. 3. Three parallel δ¹⁸O measurements on summer layers of ten individual varves. https://doi.org/10.1594/PANGAEA.743126
- Mangili, C; Plessen, B; Wolff, C et al. (2010): Fig. 3. Ten parallel δ¹⁸O measurements on the tenth varve. https://doi.org/10.1594/PANGAEA.743127
- Mangili, C; Plessen, B; Wolff, C et al. (2010): Fig. 4b. 2 years varve resolution at the begin of PMO. https://doi.org/10.1594/PANGAEA.743128
- Mangili, C; Plessen, B; Wolff, C et al. (2010): Fig. 4c. 2 years varve resolution at the end of PMO. https://doi.org/10.1594/PANGAEA.743129