Articles | Volume 16, issue 21
https://doi.org/10.5194/bg-16-4183-2019
https://doi.org/10.5194/bg-16-4183-2019
Research article
 | 
06 Nov 2019
Research article |  | 06 Nov 2019

Organic-carbon-rich sediments: benthic foraminifera as bio-indicators of depositional environments

Elena Lo Giudice Cappelli, Jessica Louise Clarke, Craig Smeaton, Keith Davidson, and William Edward Newns Austin

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Cited articles

Alve, E.: Opportunistic features of the foraminifer Stainforthia fusiformis (Williamson): evidence from Frierfjord, Norway, J. Micropalaeontol., 13, 24–24, https://doi.org/10.1144/jm.13.1.24, 1994. 
Alve, E.: Benthic foraminiferal responses to estuarine pollution; a review, J. Foramin. Res., 25, 190–203, https://doi.org/10.2113/gsjfr.25.3.190, 1995. 
Alve, E.: A common opportunistic foraminiferal species as an indicator of rapidly changing conditions in a range of environments, Estuar. Coast. Shelf S., 57, 501–514, https://doi.org/10.1016/S0272-7714(02)00383-9, 2003. 
Alve, E. and Murray, J. W.: High benthic fertility and taphonomy of foraminifera: A case study of the Skagerrak, North Sea, Mar. Micropaleontol., 31, 157–175, https://doi.org/10.1016/S0377-8398(97)00005-4, 1997. 
Alve, E. and Murray, J. W.: Marginal marine environments of the Skagerrak and Kattegat: A baseline study of living (stained) benthic foraminiferal ecology, Palaeogeogr. Palaeocl., 146, 171–193, https://doi.org/10.1016/S0031-0182(98)00131-X, 1999. 
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Short summary
Fjords are known sinks of organic carbon (OC); however, little is known about the long-term fate of the OC stored in these sediments. The reason for this knowledge gap is the post-depositional degradation of OC. This study uses benthic foraminifera (microorganisms with calcite shells) to discriminate between post-depositional OC degradation and actual OC burial and accumulation in fjordic sediments, as foraminifera would only preserve the latter information in their assemblage composition.
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