Last Interglacial Climate in Northern Sweden—Insights from a Speleothem Record
Abstract
:1. Introduction
2. Study Site
3. Materials and Methods
4. Results
4.1. Chronology
4.2. The δ13C and δ18O Records
5. Discussion
5.1. Interpretation of Carbon and Oxygen Isotope Compositions
5.2. Climate Interpretation and Comparison with Scandinavian Speleothem Records
5.3. Comparison with Speleothem Records from Other Parts of Europe
5.4. Comparisons with Other Nearby Terrestrial and Marine Climate Archives
6. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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IUP LAB ID_year | Mass Spec | Dft (mm) | Age * (ka) | Age ** (ka) | 238U (ng/g) | 232Th (ng/g) | 230Th/238U AR | 230Th/232Th AR | δ234U (‰) | δ234Uinitial (‰) |
---|---|---|---|---|---|---|---|---|---|---|
5550_2011 | TIMS | 4.0 | 122.2 ± 1.6 | 122.1 ± 1.7 | 746.5 ± 1.5 | 4.428 ± 0.022 | 1.0035 ± 0.0071 | 517.0 ± 4.4 | 424.3 ± 4.0 | 599.1 ± 5.3 |
8846_2017 | MC-ICPMS | 7.0 | 124.72 ± 0.43 | 124.61 ± 0.39 | 806.348 ± 0.034 | 5.0698 ± 0.0076 | 1.0408 ± 0.0017 | 507.3 ± 1.1 | 455.8 ± 1.0 | 648.2 ± 1.6 |
8755_2017 | MC-ICPMS | 15.0 | 126.18 ± 0.58 | 126.05 ± 0.57 | 652.44 ± 0.21 | 4.7223 ± 0.0093 | 0.9664 ± 0.0021 | 405.4 ± 1.2 | 353.5 ± 1.4 | 504.8 ± 2.2 |
5551_2011 | TIMS | 30.5 | 125.5 ± 1.6 | 125.2 ± 1.6 | 492.46 ± 0.98 | 8.147 ± 0.030 | 0.8560 ± 0.0055 | 440.1 ± 6.8 | 218.7 ± 3.5 | 311.6 ± 4.6 |
8754_2017 | MC-ICPMS | 43.9 | 127.77 ± 0.83 | 127.43 ± 0.78 | 791.827 ± 0.035 | 13.664 ± 0.056 | 0.8806 ± 0.0029 | 156.91 ± 0.83 | 238.01 ± 0.95 | 341.2 ± 1.5 |
5552_2011 | TIMS | 67.2 | 128.2 ± 1.5 | 127.7 ± 1.4 | 1199.7 ± 1.2 | 27.33 ± 0.11 | 0.9010 ± 0.0054 | 158.1 ± 1.1 | 263.0 ± 2.4 | 377.3 ± 3.3 |
8823_2017 | MC-ICPMS | 71.0 | 128.63 ± 0.52 | 126.97 ± 0.99 | 1976.45 ± 0.13 | 155.60 ± 0.28 | 0.8511 ± 0.0018 | 33.067 ± 0.091 | 197.34 ± 0.62 | 282.5 ± 1.2 |
8752_2017 | MC-ICPMS | 73.7 | 130.97 ± 0.42 | 130.17 ± 0.66 | 1639.955 ± 0.064 | 63.425 ± 0.087 | 0.8686 ± 0.0015 | 68.31 ± 0.15 | 208.48 ± 0.62 | 301.2 ± 1.1 |
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Finné, M.; Salonen, S.; Frank, N.; Helmens, K.F.; Schröder-Ritzrau, A.; Deininger, M.; Holzkämper, S. Last Interglacial Climate in Northern Sweden—Insights from a Speleothem Record. Quaternary 2019, 2, 29. https://doi.org/10.3390/quat2030029
Finné M, Salonen S, Frank N, Helmens KF, Schröder-Ritzrau A, Deininger M, Holzkämper S. Last Interglacial Climate in Northern Sweden—Insights from a Speleothem Record. Quaternary. 2019; 2(3):29. https://doi.org/10.3390/quat2030029
Chicago/Turabian StyleFinné, Martin, Sakari Salonen, Norbert Frank, Karin F. Helmens, Andrea Schröder-Ritzrau, Michael Deininger, and Steffen Holzkämper. 2019. "Last Interglacial Climate in Northern Sweden—Insights from a Speleothem Record" Quaternary 2, no. 3: 29. https://doi.org/10.3390/quat2030029