Carbon isotope ratios of organic compound fractions in oceanic suspended particles
SCIE
SCOPUS
- Title
- Carbon isotope ratios of organic compound fractions in oceanic suspended particles
- Authors
- Hwang, J; Druffel, ERM
- Date Issued
- 2006-12-09
- Publisher
- AMER GEOPHYSICAL UNION
- Abstract
- To study cycling of organic fractions in the ocean, relative abundances and radio- and stable-carbon isotope measurements of total lipid extract, acid-soluble, and acid-insoluble fractions of suspended particulate organic carbon (POC) were made. Changes in relative abundances occurred mostly in the upper 1000 m of the water column, with a decrease in total lipid extract and the acid-soluble fraction and an increase in the acid-insoluble fraction with increasing depth. We found lower Delta(14)C values for total lipid extract and the acid-insoluble fraction than for the acid-soluble fraction, which is consistent with the previous suggestion of incorporation of dissolved organic carbon and/or resuspended sediment to POC (Druffel and Williams, 1990; Sherrell et al., 1998). The Delta(14)C values of these fractions in a given organic carbon pool must be understood in terms of acquisition of (14)C-depleted carbon from other carbon pools in addition to aging within the reservoir.
- Keywords
- NORTHEAST PACIFIC-OCEAN; PARTICULATE MATTER; MARINE-SEDIMENTS; CLAY-MINERALS; WATER COLUMN; DEEP-OCEAN; RADIOCARBON; VARIABILITY; C-14; SEA
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25931
- DOI
- 10.1029/2006GL027928
- ISSN
- 0094-8276
- Article Type
- Article
- Citation
- GEOPHYSICAL RESEARCH LETTERS, vol. 33, no. 23, 2006-12-09
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- There are no files associated with this item.
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