Abstract
Lakes are important paleoenvironmental archives retaining abundant information due to their typical high sedimentation rates and susceptibility to environmental changes. Lipid biomarkers distributions in surface sediments were determined using gas chromatography (GC) and GC-mass-spectrometry in order to investigate the lipid biomarkers signature in sediments of four lakes of the Baikal region. They are linked to autochthonous and/or allochthonous sources, which can lead to distinct lipid molecular distributions. Lipid biomarkers of terrestrial origin (i.e. high-molecular weight n-alkanoic acids, n-alkanols, dicarboxylic acids, β-sitosterol) and aquatic source (i.e. short chain fatty acids, hydroxy fatty acids, etc.) were detected in all lakes in different ratios. The results of this study show the compatibility of different lipid biomarkers in assessing the origin of organic matter. Therefore, lipid molecular proxies in combination with molecular distribution of n-alkanes, dD or D/H ratios, palynological studies, etc. can be applied as paleoclimate and paleoenvironment proxies.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Earth and Environmental Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
