Variations in organic carbon loading of surface sediments from the shelf to the slope of the Chukchi Sea, Arctic Ocean

LI Zhongqiao; WANG Xinyi; JIN Haiyan; JI Zhongqiang; BAI Youcheng

doi:10.1007/s13131-017-1026-y

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Article Navigation > Acta Oceanologica Sinica > 2017 > 36(8): 131-136

LI Zhongqiao, WANG Xinyi, JIN Haiyan, JI Zhongqiang, BAI Youcheng. Variations in organic carbon loading of surface sediments from the shelf to the slope of the Chukchi Sea, Arctic Ocean[J]. Acta Oceanologica Sinica, 2017, 36(8): 131-136. doi: 10.1007/s13131-017-1026-y

Citation:

LI Zhongqiao, WANG Xinyi, JIN Haiyan, JI Zhongqiang, BAI Youcheng. Variations in organic carbon loading of surface sediments from the shelf to the slope of the Chukchi Sea, Arctic Ocean[J]. Acta Oceanologica Sinica, 2017, 36(8): 131-136. doi: 10.1007/s13131-017-1026-y

Citation:

LI Zhongqiao, WANG Xinyi, JIN Haiyan, JI Zhongqiang, BAI Youcheng. Variations in organic carbon loading of surface sediments from the shelf to the slope of the Chukchi Sea, Arctic Ocean[J]. Acta Oceanologica Sinica, 2017, 36(8): 131-136. doi: 10.1007/s13131-017-1026-y

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Variations in organic carbon loading of surface sediments from the shelf to the slope of the Chukchi Sea, Arctic Ocean

doi: 10.1007/s13131-017-1026-y

1.
Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
2.
Laboratory of Marine Chemistry and Environment, Ocean College, Zhejiang University, Zhoushan 316021, China
3.
Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

Received Date: 2016-03-30

Abstract

Abstract

The content of organic carbon (OC) normalized to the specific surface area (SSA) of sediment is widely used to trace variations in OC loading (OC/SSA). This study presents observations of OC/SSA of surface sediments collected in the Chukchi Sea, a typical Arctic marginal sea. Shelf sediments exhibit much higher OC/SSA values than slope sediments in the study area. Compared with OC/SSA values reported from the East Siberian Shelf and Mackenzie River, the slope sediments possess lower OC loading. This abrupt decrease in OC/SSA is mostly related to the lower primary production on slope as well as possible oxidization processes. The results of linear regression analysis between OC and SSA indicate a sedimentary source rock for the OC in the Chukchi Sea sediments. Moreover, shelf sediments with low SSA possess a larger rock OC fraction than slope sediments do. The dataset of the present study enables a more thorough understanding of regional OC cycling in the Chukchi Sea.
- Chukchi Sea,
- Arctic,
- surface sediments,
- organic carbon loading,
- carbon cycle

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References(31)

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