Skip to main content

Advertisement

Log in

Biomarker and stable carbon isotope analyses of sedimentary organic matter from Lake Tswaing: evidence for deglacial wetness and early Holocene drought from South Africa

  • Original paper
  • Published:
Journal of Paleolimnology Aims and scope Submit manuscript

Abstract

Comparing the organic matter (OM) composition of modern and past lake sediments contributes to the understanding of changes in lacustrine environments over time. We investigate modern plant and lake-water samples as well as modern and ancient sediment samples from the Tswaing Crater in South Africa using biomarker and stable carbon isotope analyses on bulk OM and specific biomarker compounds. The characteristic molecular markers for higher land plants (predominantly C3-type deciduous angiosperms) in Lake Tswaing are long-chain n-alkanes (n-C27−33), n-alkanols (n-C28+30), stigmasterol, β-sitosterol, β-amyrin, α-amyrin and lupeol. The C17 n-alkane, tetrahymanol, gammaceran-3-one and C29 sterols dominate the lipid fraction of autochthonously produced OM. By comparing stable carbon isotope analyses on bulk OM and the characteristic biomarkers, we follow the modern carbon cycle in the crater environment and find indications for methanotrophic activity in the lake from isotopically depleted moretene. A comparative study of core sediments reveals changes in the terrestrial (C3 versus C4) and aquatic bioproductivity and allows insights into the variability of the carbon cycle under the influence of changing climatic conditions for the time from the end of the last glacial (Termination I) to the late Holocene, ca. 14,000–2,000 calibrated years before present (years BP). The most pronounced changes occur in the aquatic realm after ca. 10,000 years BP when our results imply climate swings from more humid to more arid and after 7,500 years BP to gradually more humid conditions again, which can be related to a shift in the position of the Inter-Tropical Convergence Zone or to changes in the tropical atmosphere–ocean interaction. Long-chain alkenones (LCAs) have been identified in ancient lake sediments from Africa for the first time. They occur in samples older than 7,500 years BP and their distribution (dominance of C38 and of tri- over tetra-unsaturated LCAs) is distinctly different from other published records suggesting a to date unknown source organism.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

  • Ashton PJ (1999) Limnology of the Pretoria Saltpan crater lake. In: Partridge TC (ed) Tswaing, investigations into the origin, age and palaeoenvironments of the Pretoria Saltpan. Council of Geoscience (Geological Survey of South Africa), Pretoria, pp 72–90

    Google Scholar 

  • Bligh EG, Dyer WJ (1959) A rapid method for total lipid extraction and purification. Can J Biochem Physiol 37:911–917

    Google Scholar 

  • Blumenberg M, Seifert R, Kasten S, Bahlmann E, Michaelis W (2009) Euphotic zone bacterioplankton sources major sedimentary bacteriohopanepolyols in the Holocene Black Sea. Geochim Cosmochim Acta 73:750–766

    Article  Google Scholar 

  • Boon JP, Hines H, Burlingame AL, Klok J, Rijpstra WIC, De Leeuw JW, Edmunds KE, Eglinton G (1983) Organic geochemical studies of solar lake laminated cyanobacterial mats. In: Bjøroy M, Albrecht P, Cornford C, Groot KD, Eglinton G, Galimov E, Leythaeuser D, Pelet R, Rullkötter J, Speers G (eds) Advances in organic geochemistry 1981. Wiley, Chichester, pp 207–227

    Google Scholar 

  • Bühmann D, Elsenbroek JH (1999) Mineralogy and geochemistry of the Pretoria Saltpan borehole core. In: Partridge TC (ed) Tswaing, investigations into the origin, age and palaeoenvironments of the Pretoria Saltpan. Council of Geoscience (Geological Survey of South Africa), Pretoria, pp 91–117

    Google Scholar 

  • Castañeda IS, Werne JP, Johnson TC (2007) Wet and arid phases in the southeast African tropics since the last glacial maximum. Geology 35:823–826

    Article  Google Scholar 

  • Collister JW, Rieley G, Stern B, Eglinton G, Fry B (1994) Compound-specific δ13C analyses of leaf lipids from plants with differing carbon dioxide metabolisms. Org Geochem 21:619–627

    Article  Google Scholar 

  • Cruz FW Jr, Burns SJ, Karmann I, Sharp WD, Vuille M, Cardoso AO, Ferrari JA, Silva Dias PL, Viana O Jr (2005) Insolation-driven changes in atmospheric circulation over the past 116,000 years in subtropical Brazil. Nature 434:63–66

    Article  Google Scholar 

  • de Mesmay R (2008) Fonctionnement biogéochimique du Lac Masoko (Tanzanie), approche par les biomarqueurs lipidiques sédimentaires. PhD thesis, Université de la Méditerranée, p 122

  • Eglinton G, Hamilton JE (1963) The distribution of alkanes. In: Swaine T (ed) Chemical plant taxonomy. Academic Press, New York, pp 187–217

    Google Scholar 

  • EPICA Community Members (2006) One-to-one coupling of glacial climate variability in Greenland and Antarctica. Nature 444:195–198

    Article  Google Scholar 

  • Ficken KJ, Street-Perrott FA, Perrott RA, Swain DL, Olago DO, Eglinton G (1998) Glacial/interglacial variations in carbon cycling revealed by molecular and isotope stratigraphy of Lake Nkunga, Mt. Kenya, East Africa. Org Geochem 29:1701

    Article  Google Scholar 

  • Ficken KJ, Wooller MJ, Swain DL, Street-Perrott FA, Eglinton G (2002) Reconstruction of a subalpine grass-dominated ecosystem, Lake Rutundu, Mount Kenya: a novel multi-proxy approach. Palaeogeogr Palaeoclimatol Palaeoecol 177:137–149

    Article  Google Scholar 

  • Fleitmann D, Burns SJ, Mudelsee M, Neff U, Kramers J, Mangini A, Matter A (2003) Holocene forcing of the Indian monsoon recorded in a stalagmite from southern Oman. Science 300:1737–1739

    Article  Google Scholar 

  • Garcin Y, Vincens A, Williamson D, Buchet G, Guiot J (2007) Abrupt resumption of the African monsoon at the younger Dryas-Holocene climatic transition. Quat Sci Rev 26:690–704

    Article  Google Scholar 

  • Gasse F (2000) Hydrological changes in the African tropics since the last glacial maximum. Quat Sci Rev 19:189–211

    Article  Google Scholar 

  • Grimalt JO, Yruela I, Saiz-Jimenez C, Toja J, de Leeuw JW, Albaiges J (1991) Sedimentary lipid biogeochemistry of an hypereutrophic alkaline lagoon. Geochim Cosmochim Acta 55:2555–2577

    Article  Google Scholar 

  • Grossi V, Baas M, Schogt N, Klein Breteler WCM, de Leeuw JW, Rontani JF (1996) Formation of phytadienes in the water column: myth or reality? Org Geochem 24:833–839

    Article  Google Scholar 

  • Grossi V, Hirschler A, Raphel D, Rontani JF, de Leeuw JW, Bertrand JC (1998) Biotransformation pathways of phytol in recent anoxic sediments. Org Geochem 29:845–861

    Article  Google Scholar 

  • Harvey HR, McManus GB (1991) Marine ciliates as a widespread source of tetrahymanol and hopan-3β-ol in sediments. Geochim Cosmochim Acta 55:3387–3390

    Article  Google Scholar 

  • Holmgren K, Lee-Thorp JA, Cooper GRJ, Lundblad K, Partridge TC, Scott L, Sithaldeen R, Siep Talma A, Tyson PD (2003) Persistent millennial-scale climatic variability over the past 25,000 years in southern Africa. Quat Sci Rev 22:2311–2326

    Article  Google Scholar 

  • Hornibrook ERC, Longstaffe FJ, Fyfe WS, Bloom Y (2000) Carbon-isotope ratios and carbon, nitrogen and sulfur abundances in flora and soil organic matter from a temperate-zone bog and marsh. Geochem J 34:237–245

    Google Scholar 

  • Kleemann G, Poralla K, Englert G, Kjosen H, Liaaen-Jensen S, Neunlist S, Rohmer M (1990) Tetrahymanol from the phototrophic bacterium Rhodopseudomonas palustris: first report of a gammacerane triterpene from a prokaryote. J Gen Microbiol 136:2551–2553

    Google Scholar 

  • Kristen I, Fuhrmann A, Thorpe J, Röhl U, Wilkes H, Oberhänsli H (2007) Hydrological changes in southern Africa over the last 200 ka as recorded in lake sediments from the Tswaing impact crater. S Afr J Geol 110:311–326

    Article  Google Scholar 

  • Larimer FW, Chain P, Hauser L, Lamerdin J, Malfatti S, Do L, Land ML, Pelletier DA, Beatty JT, Lang AS, Tabita FR, Gibson JL, Hanson TE, Bobst C, Torres JLT, Peres C, Harrison FH, Gibson J, Harwood CS (2003) Complete genome sequence of the metabolically versatile photosynthetic bacterium Rhodopseudomonas palustris. Nat Biotechnol 22:55–61

    Article  Google Scholar 

  • Leng MJ, Lamb AL, Heaton THE, Marshall JD, Wolfe BB, Jones MD, Holmes J, Arrowsmith C (2005) Isotopes in lake sediments. In: Leng MJ (ed) Isotopes in palaeoenvironmental research. Springer, Dordrecht, pp 147–184

    Google Scholar 

  • Levi C, Labeyrie L, Bassinot F, Guichard F, Cortijo E, Waelbroeck C, Caillon N, Duprat J, de Garidel-Thoron T, Elderfield H (2007) Low-latitude hydrological cycle and rapid climate changes during the last deglaciation. Geochem Geophys Geosys 8(5):1–11. doi:10.1029/2006GC001514

    Google Scholar 

  • Li J, Philp RP, Pu F, Allen J (1996) Long-chain alkenones in Qinghai Lake sediments. Geochim Cosmochim Acta 60:235–241

    Article  Google Scholar 

  • McCarthy RD, Duthie AP (1962) Rapid quantitative method for separation of free fatty acids from other lipids. J Lipid Res 3:117–119

    Google Scholar 

  • McCormac FG, Hogg AG, Blackwell PG, Buck CE, Higham TFG, Reimer PJ (2004) SHCal04 southern hemisphere calibration 0–11.0 cal k years BP. Radiocarbon 46:1087–1092

    Google Scholar 

  • O’Connor PW, Thomas DSG (1999) The timing and environmental significance of late quaternary linear dune development in western Zambia. Quat Res 52:44–55

    Article  Google Scholar 

  • O’Leary MH (1981) Carbon isotope fractionation in plants. Phytochemistry 20:553–567

    Article  Google Scholar 

  • Partridge TC (1999) Tswaing, investigations into the origin, age and palaeoenvironments of the Pretoria Saltpan. Council for Geosciences, Geological Survey of South Africa, Pretoria, p 198

    Google Scholar 

  • Partridge TC, deMenocal PB, Lorentz SA, Paiker MJ, Vogel JC (1997) Orbital forcing of climate over South Africa: a 200,000-year rainfall record from the Pretoria Saltpan. Quat Sci Rev 16:1125–1133

    Article  Google Scholar 

  • Pearson EJ, Farrimond P, Juggins S (2007) Lipid geochemistry of lake sediments from semi-arid Spain: relationships with source inputs and environmental factors. Org Geochem 38:1169–1195

    Article  Google Scholar 

  • Radke M, Sittard HG, Welte DH (1978) Removal of soluble organic matter from rock samples with a flow-through extraction cell. Anal Chem 50:663–665

    Article  Google Scholar 

  • Radke M, Wilsch H, Welte DH (1980) Preparative hydrocarbon group type determination by automated medium pressure liquid chromatography. Anal Chem 52:406–411

    Article  Google Scholar 

  • Reimer PJ, Baillie MGL, Bard E, Bayliss A, Beck JW, Bertrand C, Blackwell PG, Buck CE, Burr G, Cutler KB, Damon PE, Edwards RL, Fairbanks RG, Friedrich M, Guilderson TP, Hughen KA, Kromer B, McCormac FG, Manning S, Bronk Ramsey C, Reimer RW, Remmele S, Southon JR, Stuiver M, Talamo S, Taylor FW, van der Plicht J, Weyhenmeyer CE (2004) INTCAL04 terrestrial radiocarbon age calibration, 0–26 cal k years BP. Radiocarbon 46:1029–1058

    Google Scholar 

  • Rontani J-F, Volkman JK (2003) Phytol degradation products as biogeochemical tracers in aquatic environments. Org Geochem 34:1–35

    Article  Google Scholar 

  • Rontani J-F, Volkman JK (2005) Lipid characterization of coastal hypersaline cyanobacterial mats from the Camargue (France). Org Geochem 36:251–272

    Article  Google Scholar 

  • Rosenfeld WD, Silverman SR (1959) Carbon isotope fractionation in bacterial production of methane. Science 130:1658–1659

    Article  Google Scholar 

  • Sakata S, Hayes JM, McTaggart AR, Evans RA, Leckrone KJ, Togasaki RK (1997) Carbon isotopic fractionation associated with lipid biosynthesis by a cyanobacterium: relevance for interpretation of biomarker records. Geochim Cosmochim Acta 61:5379–5389

    Article  Google Scholar 

  • Schouten S, Hartgers WA, Lopez JF, Grimalt JO, Sinninghe Damsté JS (2001) A molecular isotopic study of 13C-enriched organic matter in evaporitic deposits: recognition of CO2-limited ecosystems. Org Geochem 32:277–286

    Article  Google Scholar 

  • Scott L (1999) Palynological analysis of the Pretoria Saltpan (Tswaing crater) sediments and vegetation history in the bushveld savanna biome, South Africa. In: Partridge TC (ed) Tswaing, investigations into the origin, age and palaeoenvironments of the Pretoria Saltpan. Council of Geoscience (Geological Survey of South Africa), Pretoria, pp 143–166

    Google Scholar 

  • Scott L (2002) Grassland development under glacial and interglacial conditions in southern Africa: review of pollen, phytolith and isotope evidence. Palaeogeogr Palaeoclimatol Palaeoecol 177:47–57

    Article  Google Scholar 

  • Scott L, Holmgren K (2003) Age interpretation of the Wonderkrater spring sediments and vegetation change in the savanna biome, Limpopo province, South Africa. S Afr J Sci 99:484–488

    Google Scholar 

  • Street-Perrott FA, Ficken KJ, Yongsong H, Eglinton G (2004) Late quaternary changes in carbon cycling on Mt. Kenya, East Africa: an overview of the δ13C record in lacustrine organic matter. Quat Sci Rev 23:861–879

    Article  Google Scholar 

  • Sun Q, Chu G, Liu G, Li S, Wang X (2007) Calibration of alkenone unsaturation index with growth temperature for a lacustrine species, Chysotila lamellosa (Haptophyceae). Org Geochem 38:1226–1234

    Article  Google Scholar 

  • Talbot MR, Lærdal T (2000) The late Pleistocene-Holocene palaeolimnology of Lake Victoria, East Africa, based upon elemental and isotopic analyses of sedimentary organic matter. J Paleolimnol 23:141–164

    Article  Google Scholar 

  • Thiel V, Jenisch A, Landmann G, Reimer A, Michaelis W (1997) Unusual distributions of long-chain alkenones and tetrahymanol from the highly alkaline lake Van, Turkey. Geochim Cosmochim Acta 61:2053–2064

    Article  Google Scholar 

  • Tissot BP, Welte DH (1984) Petroleum formation and occurrence. Springer, Berlin

    Google Scholar 

  • Tornabene TG, Langworthy TA, Holzer G, Oró J (1979) Squalenes, phytanes and other isoprenoids as major neutral lipids of methanogenic and thermoacidophilic “archaebacteria”. J Mol Evol 13:73–83

    Article  Google Scholar 

  • Uemura H, Ishiwatari R (1995) Identification of unusual 17[beta](H)-moret-22(29)-ene in lake sediments. Org Geochem 23:675–680

    Article  Google Scholar 

  • Volkman JK (2005) Sterols and other triterpenoids: source specificity and evolution of biosynthetic pathways. Org Geochem 36:139–159

    Article  Google Scholar 

  • Wang X-C, Chen RF, Berry A (2003) Sources and preservation of organic matter in Plum Island salt marsh sediments (MA, USA): long-chain n-alkanes and stable carbon isotope compositions. Estuar Coast Shelf Sci 58:917–928

    Article  Google Scholar 

  • Whiticar MJ, Faber E, Schoell M (1986) Biogenic methane formation in marine and freshwater environments: CO2 reduction vs. acetate fermentation—isotope evidence. Geochim Cosmochim Acta 50:693–709

    Article  Google Scholar 

  • Wooller MJ, Swain DL, Ficken KJ, Agnew ADQ, Street-Perrott FA, Eglinton G (2003) Late quaternary vegetation changes around Lake Rutundu, Mount Kenya, East Africa: evidence from grass cuticles, pollen and stable carbon isotopes. J Quat Sci 18:3–15

    Article  Google Scholar 

  • Wooller MJ, Zazula GD, Edwards M, Froese DG, Boone RD, Parker C, Bennett B (2007) Stable carbon isotope compositions of eastern Beringian grasses and sedges: investigating their potential as paleoenvironmental indicators. Arct Antarct Alp Res 39:318–331

    Article  Google Scholar 

  • Zink K-G, Leythaeuser D, Melkonian M, Schwark L (2001) Temperature dependency of long-chain alkenone distributions in recent to fossil limnic sediments and in lake waters. Geochim Cosmochim Acta 65:253–265

    Article  Google Scholar 

Download references

Acknowledgments

We acknowledge the GFZ for funding this work and for the financial support for the coring campaign in 2001/2002. We especially thank Susanne Fietz for investigating pigments in the cyanobacterial samples and Kai Mangelsdorf, Philippe Schaeffer, and Yannick Garcin for fruitful discussions. Carsten Löser is thanked for his help in botanical issues. We are grateful to Anke Sobotta, Cornelia Karger, Kristin Günther, Jenny Wunger und Michael Gabriel for technical help in the laboratories.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to I. Kristen.

Electronic supplementary material

Below is the link to the electronic supplementary material.

TIFF 357 kb

PDF 255 kb

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kristen, I., Wilkes, H., Vieth, A. et al. Biomarker and stable carbon isotope analyses of sedimentary organic matter from Lake Tswaing: evidence for deglacial wetness and early Holocene drought from South Africa. J Paleolimnol 44, 143–160 (2010). https://doi.org/10.1007/s10933-009-9393-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10933-009-9393-9

Keywords

Navigation