Geochemical investigation of ODP Leg 113 sites

Dissolved organic carbon (DOC) was determined in pore water extracted from pelagic and hemipelagic sediments recovered during Leg 113. DOC concentration varied between 1.82 and 13.6 mg C/L which is one to two orders of magnitude less than previously reported for hemipelagic sediments. It is argued t...

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Bibliographic Details
Main Authors: Egeberg, Per Kristian, Abdullah, Mohamed I
Format: Dataset
Language:English
Published: PANGAEA 1990
Subjects:
113-689B
113-690B
113-690C
113-693
113-694B
113-694C
113-695A
113-696A
113-696B
113-697A
113-697B
COMPCORE
Composite Core
DRILL
Drilling/drill rig
Joides Resolution
Leg113
Ocean Drilling Program
ODP
South Atlantic Ocean
Weddell Sea
Weddell
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.726399
https://doi.org/10.1594/PANGAEA.726399
Description
Summary:Dissolved organic carbon (DOC) was determined in pore water extracted from pelagic and hemipelagic sediments recovered during Leg 113. DOC concentration varied between 1.82 and 13.6 mg C/L which is one to two orders of magnitude less than previously reported for hemipelagic sediments. It is argued that this difference is related to differences in the intensity of degradation of organic matter. As a first approximation it is found that in reducing sediments, the level of DOC is proportional to the intensity of sulfate reduction. It is suggested that DOC is formed by different mechanisms in oxic and reducing environments.

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