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Estimation of the sources of pelagic sediments from the South Pacific Ocean to the Antarctic Ocean

  • Geochemistry and Cosmochemistry
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Abstract

In order to estimate the source in pelagic sediments, principal component analysis (PCA) was applied to the data matrix which was made by chemical compositions of sediments measured by instrumental neutron activation analysis (INAA) and prompt gamma-ray analysis (PGA). The results of PCA represented 3-factor models in each sediment, explaining 58–98% of the total variations in the sediments. A comparison of eigenvectors of terrigenous elements indicated the existence of 2 sources. Group 1 is suggested to be continental dust, whereas Group 2 is suggested to be volcanic rock. Variation of K/Ti ratio and Eu anomaly of sediments supported the above results.

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Authors and Affiliations

  1. Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba Meguro, Tokyo, 153-8902, Japan

    K. Shozugawa, A. Kuno & M. Matsuo

  2. Ocean Research Institute, The University of Tokyo, 1-15-1 Minamidai, Nakano Tokyo, 164-8639, Japan

    Y. Sano

Authors
  1. K. Shozugawa
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  2. A. Kuno
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  3. Y. Sano
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  4. M. Matsuo
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Correspondence to K. Shozugawa.

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Shozugawa, K., Kuno, A., Sano, Y. et al. Estimation of the sources of pelagic sediments from the South Pacific Ocean to the Antarctic Ocean. J Radioanal Nucl Chem 278, 331–335 (2008). https://doi.org/10.1007/s10967-008-9605-1

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  • DOI: https://doi.org/10.1007/s10967-008-9605-1

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