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Distribution of oxygen in marine sediments measured with microelectrodes1

Revsbech, Niels Peter, Sorensen, Jan, Blackburn, Thomas Henry, Lomholt, Jens Peter·1980·Limnology and Oceanography

Abstract

Membrane‐covered platinum electrodes with a tip diameter of 2–8 µ m were used for an amperometric assay of dissolved oxygen in marine sediments. The oxygen profile extended to 3–5‐mm depth in nonilluminated sediment; even at high light intensities and at low temperatures it did not extend below 10‐mm depth in a homogeneous sandy sediment. Oxygen profiles recorded during light‐dark cycles were used to estimate the rates of oxygen production and consumption and also to calculate the apparent diffusion coefficient for oxygen in the sediment. Apparently macrofaunal activity, rather than molecular diffusion and water turbulence, was important for the occasional transport of oxygen into deeper layers and thus for the provision of oxidized conditions (positive redox potential) down to 5–10 cm below the sediment surface.

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Metadata

Authors
Revsbech, N. P., Sorensen, J., Blackburn, T. H., & Lomholt, J. P.
Venue
Limnology and Oceanography
Publisher
Wiley
Published
1980-05
Volume
25
Issue
3
Pages
403-411
ISSN
  • 0024-3590 (ISSN-L)
  • 1939-5590
OpenAlex
W2122056874
Cited by
413
References
0
FWCI
16.24
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Distribution of oxygen in marine sediments measured with microelectrodes1. https://app.cochat.ai/papers/10.4319/lo.1980.25.3.0403
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Revsbech, N. P., Sorensen, J., Blackburn, T. H., & Lomholt, J. P. (1980). Distribution of oxygen in marine sediments measured with microelectrodes1. Limnology and Oceanography. https://doi.org/10.4319/lo.1980.25.3.0403

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