The paleolimnologist's guide to compound-specific stable isotope analysis – An introduction to principles and applications of CSIA for Quaternary lake sediments

Holtvoeth, Jens; Whiteside, Jessica H.; Engels, Stefan; Freitas, Felipe Sales de; Grice, Kliti; Greenwood, Paul F.; Johnson, Sean; Kendall, Iain; Lengger, Sabine K.; Lücke, Andreas; Mayr, Christoph; Naafs, B. David A.; Rohrssen, Megan; Sepúlveda, Julio

doi:10.1016/j.quascirev.2019.01.001

Cited by 35 publications

(20 citation statements)

References 420 publications

(117 reference statements)

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“…Well-preserved organic matter in marine sediments is a direct indicator of environmental conditions at the time of sedimentation and thus is important for paleo-environmental studies (Meyers and Ishiwatari 1993). Among these, lipid organic biomarkers have been widely used to reconstruct past environmental and climatic conditions in oceans and lakes (Eglinton and Eglinton 2008;Holtvoeth et al 2019). Long-chain n-alkanes (C 25 -C 35 ) are important components of the epicuticular wax in higher terrestrial plants, and these n-alkanes are eroded from leaf surfaces and soil by winds and then transported to the Southern Ocean (Bendle et al 2007;Martínez-Garcia et al 2009Lamy et al 2014;Jaeschke et al 2017).…”

Section: Introductionmentioning

confidence: 99%

A potential suite of climate markers of long-chain n-alkanes and alkenones preserved in the top sediments from the Pacific sector of the Southern Ocean

Chen

Liu

Lin

et al. 2021

Prog Earth Planet Sci

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Investigating organic compounds in marine sediments can potentially unlock a wealth of new information in these climate archives. Here, we present pilot study results of organic geochemical features of long-chain n-alkanes and alkenones and individual carbon isotope ratios of long-chain n-alkanes from a newly collected, approximately 8 m long, located in the far reaches of the Pacific sector of the Southern Ocean. We analyzed a suite of organic compounds in the core. The results show abundant long-chain n-alkanes (C29–C35) with predominant odd-over-even carbon preference, suggesting an origin of terrestrial higher plant waxes via long-range transport of dust, possibly from Australia and New Zealand. The δ13C values of the C31n-alkane range from −29.4 to −24.8‰, in which the higher δ13C values suggest more contributions from C4 plant waxes. In the analysis, we found that the mid-chain n-alkanes (C23–C25) have a small odd-over-even carbon preference, indicating that they were derived from marine non-diatom pelagic phytoplankton and microalgae and terrestrial sources. Furthermore, the C26 and C28 with lower δ13C values (~−34‰) indicate an origin from marine chemoautotrophic bacteria. We found that the abundances of tetra-unsaturated alkenones (C37:4) in this Southern Ocean sediment core ranges from 11 to 37%, perhaps a marker of low sea surface temperature (SST). The results of this study strongly indicate that the δ13C values of long-chain n-alkanes and $$ {U}_{37}^{\mathrm{k}} $$ U 37 k index are potentially useful to reconstruct the detailed history of C3/C4 plants and SST change in the higher latitudes of the Southern Ocean.

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Section: Introductionmentioning

confidence: 99%

A potential suite of climate markers of long-chain n-alkanes and alkenones preserved in the top sediments from the Pacific sector of the Southern Ocean

Chen

Liu

Lin

et al. 2021

Prog Earth Planet Sci

View full text Add to dashboard Cite

show abstract

“…Well preserved organic matter in marine sediments is a direct indicator of environmental conditions at the time of sedimentation and thus is important for paleo-environmental studies (Meyers and Ishiwatari 1993). Among these, lipid organic biomarkers have been widely used to reconstruct past environmental and climatic conditions in oceans and lakes (Eglinton and Eglinton 2008;Holtvoeth et al 2019).…”

Section: Introductionmentioning

confidence: 99%

A Potential Suite of Climate Markers of Long-Chain n-Alkanes and Alkenones Preserved in the top Sediments from the Pacific Sector of the Southern Ocean

Chen

Liu

Lin

et al. 2020

Preprint

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Investigation of organic compounds in marine sediments can potentially unlock a wealth of new information in these overlooked climate archives. Here we present pilot study results of organic geochemical features of long-chain n-alkanes and alkenones and individual carbon isotope ratios of long-chain n-alkanes from a newly collected, approximately 8-meter long, Pleistocene age sediment core, located in the far reaches of the Pacific sector of the Southern Ocean. We initially analyzed a suite of organic compounds in the core, and the results show abundant long-chain n-alkanes (C29-C35) with predominant odd-over-even carbon preference, which suggests an origin of terrestrial higher plant waxes via long range transport of dust, possibly from Australia and New Zealand. The δ13C values of the C31 n-alkane range from -29.4 to -24.8‰, in which the higher δ13C values suggest more contributions from C4 plants waxes. In the analysis, we found that the mid-chain n-alkanes (C23-C25) have small odd-over-even carbon preference, suggesting that they were derived from marine non-diatom pelagic phytoplankton and microalgae, and terrestrial sources. Furthermore, the C26 and C28 with lower δ13C values (~ -34‰) indicate an origin from marine chemoautotrophic bacteria. We found that the abundances of tetra-unsaturated alkenones (C37:4) in this Southern Ocean sediment core ranges from 11-37%, perhaps a marker of low sea surface temperature (SST). The results of this study strongly indicate that the δ13C values of long-chain n-alkanes and index are potentially useful to reconstruct detailed history of C3/C4 plants and SST change in the higher latitudes of the Southern Ocean.

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“…A parallel review by Holtvoeth et al (2019) focuses on compound-specific stable isotopes. It covers alkyl lipids, amino acids, GDGTs, pigment derivatives, hopanoids, steroids and cellulose and the analysis of H, C, O, and in some cases N and S isotope values of these compounds.…”

mentioning

confidence: 99%

Stable isotopes in biological and chemical fossils from lake sediments: Developing and calibrating palaeoenvironmental proxies

Hardenbroek

Heiri

Leng

2019

Quaternary Science Reviews

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The paleolimnologist's guide to compound-specific stable isotope analysis – An introduction to principles and applications of CSIA for Quaternary lake sediments

Cited by 35 publications

References 420 publications

A potential suite of climate markers of long-chain n-alkanes and alkenones preserved in the top sediments from the Pacific sector of the Southern Ocean

A potential suite of climate markers of long-chain n-alkanes and alkenones preserved in the top sediments from the Pacific sector of the Southern Ocean

A Potential Suite of Climate Markers of Long-Chain n-Alkanes and Alkenones Preserved in the top Sediments from the Pacific Sector of the Southern Ocean

Stable isotopes in biological and chemical fossils from lake sediments: Developing and calibrating palaeoenvironmental proxies

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