Association of sinking organic matter with various types of mineral ballast in the deep sea: Implications for the rain ratio

DOI Web Site Web Site 被引用文献12件
  • Christine Klaas
    Department of the Geophysical Sciences University of Chicago Chicago Illinois USA
  • David E. Archer
    Department of the Geophysical Sciences University of Chicago Chicago Illinois USA

書誌事項

公開日
2002-12
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1029/2001gb001765
公開者
American Geophysical Union (AGU)

この論文をさがす

説明

<jats:p>We compiled and standardized sediment trap data below 1000 m depth from 52 locations around the globe to infer the implications of the <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#gbc842-bib-0008"><jats:italic>Armstrong et al.</jats:italic> [2002]</jats:ext-link> “ballast” model to the ratio of organic carbon to calcium carbonate in the deep sea (the rain ratio). We distinguished three forms of mineral ballast: calcium carbonate, opal, and lithogenic material. We concur with <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#gbc842-bib-0008"><jats:italic>Armstrong et al.</jats:italic> [2002]</jats:ext-link> that organic carbon sinking fluxes correlate tightly with mineral fluxes. Based on the correlations seen in the trap data, we conclude that most of the organic carbon rain in the deep sea is carried by calcium carbonate, because it is denser than opal and more abundant than terrigenous material. This analysis explains the constancy of the organic carbon to calcium carbonate rain ratio in the deep sea today, and argues against large changes in the mean value of this ratio in the past. However, sediment trap data show variability in the ratio in areas of high relative calcium carbonate export (mass CaCO<jats:sub>3</jats:sub>/mass ratio > 0.4), unexplainable by the model, leaving open the possibility of regional variations in the rain ratio in the past.</jats:p>

収録刊行物

被引用文献 (12)*注記

もっと見る

問題の指摘

ページトップへ