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Cited by 49Isotope Analysis in EcologyMarine Plankton and BiogeochemistryGeology and Paleoclimatology Research

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Transport of organic carbon from the California coast to the slope region: A study of Δ14C and δ13C signatures of organic compound classes

Hwang, Jeomshik, Druffel, Ellen R. M., Komada, Tomoko·2005·Global Biogeochemical Cycles
DOI 10.1029/2004gb002422
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Abstract

Surface sediments along a transect from an abyssal site in the northeastern Pacific (Station M, 34°50′N, 123°00′W) to a small mountainous river on the California coast (Santa Clara River) were studied to investigate the sources and cycling of organic matter on the continental margin. Sediment samples were separated into organic compound fractions (extractable lipids, amino acids (THAA), carbohydrates (TCHO), and the acid‐insoluble fraction), and their carbon isotope ratios were measured. The Δ14C values of all the THAA and TCHO fractions were greater than −100‰, indicating relatively modern organic carbon (OC) source(s), and rapid cycling of these fractions. In contrast, the Δ14C values of extractable lipids and the acid‐insoluble fraction were distinctly lower than those of the THAA and TCHO fractions. The Δ14C values of source OC to the sediments were estimated using a simple mixed layer model. These values were lower than the Δ14C signatures of pre‐industrial plankton suggesting input of both old OC and contemporary plankton to the margin sediments. The source of old OC at the 2000‐m site was likely from laterally transported coastal sediment. The estimated low Δ14C value of the transported OC suggests that old lipids and acid‐insoluble material were selectively transported to the 2000‐m site. The contribution of riverine POC to the margin sediments were estimated from Δ14C and δ13C values and indicate that relict OC exported by rivers was an important source of old lipids…

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Crossref · 10.1029/2004gb002422

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  • Procedural blanks in environmental samples subjected to complex extraction/isolation procedures before conversion to CO2 and graphite are normally larger than those arising during combustion and graphitization.

    “However, procedural blanks in environmental samples that are subjected to complex extraction/isolation procedures before conversion to CO 2 and graphite are normally larger than those arising during these latter processes (Hwang et al. 2005; Beaupré et al. 2007; Santos et al. 2010), and become even more critical when samples are small (<0.100 mg C).”

    From Blank Assessment for Ultra-Small Radiocarbon Samples: Chemical Extraction and Separation Versus AMS (2010) · cites this paper as Hwang et al. 2005

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Metadata

Authors
Hwang, J., Druffel, E. R. M., & Komada, T.
Affiliations
  • University of California, Irvine (US)
  • Department of Earth System Science University of California Irvine California USA
ORCID
Venue
Global Biogeochemical Cycles
Publisher
American Geophysical Union (AGU)
Published
2005-05-05
Volume
19
Issue
2
ISSN
  • 0886-6236 (ISSN-L)
  • 1944-9224
DOI
10.1029/2004gb002422
OpenAlex
W1510338023
Cited by
49
References
1
Citations by year
2026: 2 · 2025: 6 · 2024: 2 · 2023: 2 · 2022: 2 · 2020: 4 · 2018: 1 · 2017: 3 · 2016: 3 · 2015: 3 · 2014: 1 · 2013: 1
FWCI
2.82
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • Global Biogeochemical Cycles (publishedVersion)
  • Open Access Server of the Woods Hole Scientific Community (Woods Hole Scientific Community) (submittedVersion)
  • Open Access System for Information Sharing (Pohang University of Science and Technology) (submittedVersion)
Funders
  • National Science Foundation
  • Camille and Henry Dreyfus Foundation
  • American Chemical Society Petroleum Research Fund
  • Office of the President, University of California
Topics
  • Physical Sciences › Environmental Science › Ecology › Isotope Analysis in Ecology
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Plankton and Biogeochemistry
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
Keywords
organic carbon transport, continental margin sediments, carbon-14, stable carbon isotopes, organic matter cycling, extractable lipids, amino acids, carbohydrates, riverine organic carbon, Santa Clara River, Station M, mixed-layer model, plankton, California coast, continental shelf sediments

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