comparison of lead and zinc sediment profiles from cores taken by diver and a gravity corer

The zinc and lead concentrations were compared in several pairs of sediment cores obtained with a modified K-B corer and by scuba diver from Coon Lake, Canada. A slow approach to and penetration of the sediments (ca. 0.1 m s super(-1)) was employed for both coring devices. The modified K-B corer gav...

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Bibliographic Details
Published in:Hydrobiologia 1984-01, Vol.108 (2), p.165-169
Main Authors: Evans, H.E, Lasenby, D.C
Format: Article
Language:English
Subjects:
Freshwater
lakes
ponds
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Summary:The zinc and lead concentrations were compared in several pairs of sediment cores obtained with a modified K-B corer and by scuba diver from Coon Lake, Canada. A slow approach to and penetration of the sediments (ca. 0.1 m s super(-1)) was employed for both coring devices. The modified K-B corer gave similar lead and zinc profiles to the diver cores. The divers observed that the K-B corer caused no disturbance of the surface sediment layers as it approached and entered the sediments. These results suggest that the K-B corer is suitable for use in lake studies requiring short, undisturbed cores from fine-grained sediments.
ISSN:0018-8158
1573-5117
DOI:10.1007/BF00014876