Abstract
Organic carbon contents have been determined in grain-size fractions of sediments from the Skagerrak southern slope and basin. C ORG concentrations were generally inversely related to grain size. The > 62; 63 μm fraction in surface sediments from deeper waters had higher contents attributable to agglutination of fine material by tube forming benthic organisms. Especially in the clay and fine silt fractions C ORG increased with increasing fraction content presumably as a result of higher “grazing pressure” on fine material in coarse sediments. A comparison of high resolution age ( 210Pb), porosity and grain-size composition profiles indicates that deviations in the 210Pb curves are due both to bioturbation and sedimentation events. Porosity profiles also show high regional variability on a small scale. When primary production, C ORG vertical fluxes and accumulation rates are compared an excess of organic carbon stored in Skagerrak sediments becomes apparent. Potential sources for this carbon such as river input, dumping or sea-floor erosion are examined.
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 callDisclaimer: 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.
