Abstract
Image analysis of lacustrine sediments has become a useful method in paleolimnology, since correlation between grey-scale and different climate and sediment proxies has turned out to be very promising. Based on experiences obtained during the mounting of a system to perform digital sediment colour analysis, DSCA, a description of the method and its pitfalls are presented. We find that certain factors are important in controlling the recorded grey-scale; the light used, oxidation of the sediment surface, and the way the camera records the colours. These pitfalls are analysed and discussed since they obviously limit the use of the method, but they may also give ideas for alternative ways for using DSCA.
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Barry, S. L. & T. C. Johnson, 1999. High-resolution stratigraphic correlation and Holocene biogenic silica profiles from varved sediments of Lake Malawi, Africa. The 2nd International Congress of Limnogeology, Abstracts: Talk 17.
Björck, S., M. J. C. Walker, L. C. Cwynar, S. Johnsen, K-L. Knudsen, J. J. Lowe, B. Wohlfarth & INTIMATE Members, 1998. An event stratigraphy for the Last Termination in the North Atlantic region based on the Greenland ice-core record: a proposal by the INTIMATE† group. J. Quat. Sci. 13: 283–292.
Bond, G., M. Kominz, W. Broecker, M. Klaus & J. McManus, 1990. Do color variations in North Atlantic deep-sea cores record Holocene-Pleistocene climate changes on Milankovitch and sub-Milankovitch scales ?. Geol. Soc. Am. Abstr. Programs. 22: A 78.
Chapron, E., M. Desmet, J. F. Deconinck, C. Beck & M. Pourchet, 1999. Last millenium high frequency paleoclimatic fluctuations in northwestern Alps: Data from fine terrigenous fraction in a deep lacustrine infill (Lake Le Bourget). The 2nd International Congress of Limnogeology, Abstracts: Talk 24.
Herron, D. J. & J. W. Thurow, 1999. Annually laminated sediments as archives of decadal scale climate variability. The 2nd International Congress of Limnogeology, Abstracts: Talk 33.
Hughen, K. A., J. T. Overpeck, L. C. Peterson & S. Trumbore, 1996. Rapid climate changes in the tropical Atlantic during the last deglaciation. Nature 380: 51–54.
Kalugin, I., V. Lignier, S. Giralt, C. Beck & J. Klerkx, 1999. Late Holocene to present-day sedimentation in Lake Issyk Kul (Kirghyztan, Tien Shan): Preliminary data from a gravity coring survey. The 2nd International Congress of Limnogeology, Abstracts: Poster 23.
Kuhlmann, L., 1997. Image aquisition by camera I: Light and reflections. In Carstensen, J. M. (ed.), Digital image processing. Course Note, Course 04250. Technical University of Denmark. Lyngby, 47–61.
Petterson, G., B. V. Odgaard & I. Renberg, 1999. Image analysis as a method to quantify sediment components. J. Paleolim. 22: 443–455.
Petterson, G., I. Renberg, P. Geladi, A. Lindberg & F. Lindgren, 1993. Spatial uniformity of sediment accumulation in varved lake sediments in northern Sweden. J. Paleolim. 9: 195–208.
Renberg, I., 1981a. Formation, structure and visual apparance of iron-rich varved lake sediments. Verh. int. Ver. Limnol. 21: 94–101.
Renberg, I., 1981b. Improved methods for sampling, photographing and varve-counting of varved lake sediments. Boreas 10: 255–258.
Ripepe, M., L. T. Roberts & A. G. Fischer, 1991. ENSO and sunspot cycles in varved Eocene oil shales from image analysis. J. Sed. Petrol. 61: 1155–1163.
Roberts, N., M. J. Leng, J. Reed, E. Hunt, C. Kuzucuoglu, J. Bertaux, J.-F. Pastre, M. Fontugne, S. Bottema, H. Woldring, S. Black, J. Thurow & M. Karabiyikoglu, 1999. A high-resolution history of the last deglacial transition from laminated crater lake sediments in central Turkey. The 2nd International Congress of Limnogeology, Abstracts: Talk 60.
Schaaf, M. & J. Thurow, 1994. A fast and easy method to derive highest-resolution time-series datasets from drillcores and rock samples. Sed. Geol. 94: 1–10.
Warren, J. D., T. S.Jr. Denney & C. E. Savrda, 1998. Matlab algorithm for grayscale analysis of carbonate cyclicity: Example application to demopolis chalk ( Cretaceous, Alabama). Comp. & Geosci.10: 923–931.
Zolitschka, B., 1996. Image analysis and microscopic investigation of annually laminated lake sediments from Fayetteville Green Lake (NY, USA), Lake C2 (NWT, Canada) and Holzmaar (Germany): a comparison. In Kemp A. E. S. (ed.), Palaeoclimatology and Palaeoceanography from Laminated Sediments. Geological Society Special Publication, 116: 49–55.
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Christensen, J., Björck, S. Digital sediment colour analyses, DSCA, of lake sediments - pitfalls and potentials. Journal of Paleolimnology 25, 531–538 (2001). https://doi.org/10.1023/A:1011137425584
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DOI: https://doi.org/10.1023/A:1011137425584