Changes of Geochemical Elements in Lake Sediments from Hållvastö, Sweden: An Implication for Climate Reconstruction During Transition from the Baltic Ice Lake to the Yoldia Sea Stage


  • Indra Sanjaya Pusat Survei Geologi



Three varved sediment cores from Hållvastö have been investigated to reveal shift in climate condition linked to the local event in the Baltic Sea: i.e. the transition between the Baltic Ice Lake Stage to the Yoldia Sea Stage. That local event was marked by the color change in varve clay sequences, which point to the change in varved clay forming processes. Varve diagrams were constructed for all Hållvastö sections in order to obtain a relative age based on annual varve-thickness correlations, the relative age of the cores are corresponded to 10,640 - 10,850 varve year or 11,390 - 11,610 cal yr BP. The geochemical data for this study was acquired using the Itrax, an X-Ray Fluorescence core scanner, which provides insitu high resolution, continuous, and multi element analyses. The geochemical data from the Itrax are occupied to make the elemental profiles and correlation matrices. The geochemical data are linked with lithological and loss on ignition analyses to answer the research question. It was found that the strength of associations between the studied elements (Ti, Rb, K, Zr, Si, Ca, Sr, Mn and Fe) varied over time with changes in basin status, which are ultimately driven by changes in climate. Element profiles are demonstrated several changes which could be related with the changes in hydrological and sedimentary processes. Increasing in grain size from the Baltic Ice Lake to the Yoldia Sea varve clay sequence (as indicated by Zr/Rb) could be related to the warming event during the beginning of Holocene warming event. The ice melted faster than before and increased the amount of water as sediment transport agent, thus coarser materials input to the basin increased.

Keywords - Varve Clay, Baltic Sea, Baltic Ice Lake, Yoldia Sea, Paleoclimate, Itrax XRF core scanner.


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Björck, J., Possnert, G., & Schoning, K., 2001. Early Holocene deglaciation chronology in Vastergotland and Narke, southern Sweden – biostratigraphy, clay varve, 14C and calendar year chronology. Quaternary Science Reviews, 20: 1309-1326.

Björck, J., Wastegård, S., Andrén, T., Sohlenius, G., & Schoning, K., 2002. An event stratigraphy for the Last Glacial–Holocene transition in eastern middle Sweden: results from investigations of varved clay and terrestrial sequences. Quaternary Science Reviews, 21: 1489–1501

Björck, S. 2008. The late Quaternary development of the Baltic Sea. In: von Storch, H. Ed., 2008. Assessment of Climate Change for the Baltic Sea Basin. Springer.

Brunnberg, L., 1995. The Baltic Ice Lake. Quaternary International, 28: 177-178.

Cohen, A.S., 2003. Paleolimnology: The History and Evolution of Lake Systems. Oxford University Press. Oxford, 528p.

Croudace, I.W., Rindby, A., & Rothwell, R.G. Ed., 2006. ITRAX: Description and evaluation of a new multi-function x-ray core scanner. In: Rothwell, R.G., 2008. New Techniques in Sediment Core Analysis. Geological Society of London, London: 51-63.

Dypvik, H., & Harris, N.B., 2001. Geochemical facies analysis of fine grained siliciclastic using Th/U, Zr/Rb and (Zr/Rb)/Sr ratios. Chemical Geology, 181: 131-146

Gorbatschev, R. & Bogdanova, S., 2000. Aspects of the Proterozoic boundary between SE and SW Sweden. Department of Geology Lund University Sweden.

Heiri, O., Lotter, A.F., & Lemck, G., 2001. Loss on ignition as a method for estimating organic and carbonate content in sediments: reproducibility and comparability of results. Journal of Palaeolimnology, 25: 101-110.

Jin, Z., Li, F., Cao, J., Wang, S., & Yu, J., 2006. Geochemistry of Daihai Lake sediments, Inner Mongolia, North China: implications for provenance, sedimentary sorting, and catchment weathering. Geomorphology, 80: 147–163.

Juhlin, C., Wahlgren, CW., & Stephens, M.B., 2000. Seismic imaging in the frontal part of the Sveconorwegian orogen, south-western Sweden. Precambrian Research, 102: 135-154.

Kylander, M., Ampel, L., Wohlfarth, B., & Veres, D., 2011. High-resolution X-Ray Fluorescence core scanning analysis of Les Echets (France) sedimentary sequence: new insights from chemical proxies. Journal of Quaternary Science, 26: 109-117.

Löwemark, L., Chen, H.F., & Yang, T.N., 2010. Normalizing XRF scanner data: a cautionary note on the interpretation of high-resolution records from organic-rich lakes. Journal of Asian Earth Sciences, 40: 1250-1256.

Mörner, N.A., 1995. The Baltic Ice Lake – Yoldia Sea transition. Quaternary International, 27: 95-98.

Peinerud, E.K., 2000. Interpretation of Si concentrations in lake sediments: three case studies. Environmental Geology, 40: 64-72.

Sohlenius, G., Emeis, K.C., Andrén, E., Andrén, T., & Kohly, A., 2001. Development of anoxia during the Holocene fresh – brackish water transition in the Baltic Sea. Marine Geology, 177: 221-242.

Stormberg, B., 1994. Younger Dryas deglaciation at Mt. Billingen, and clay varve dating of the Younger Dryas/Preboreal transition. Boreas, 23: 177-193.

Wohlfarth, B., Björck, S., Posnert, G., & Holmquist, B., 1998. An 800-year long, radiocarbon-dated varve chronology from south-eastern Sweden. Boreas, 27: 243-257.