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Deep marine biosphere fuelled by increasing organic matter availability during burial and heating

Author

Listed:
  • Peter Wellsbury

    (University of Bristol, Wills Memorial Building)

  • Kim Goodman

    (University of Bristol, Wills Memorial Building)

  • Tanja Barth

    (University of Bergen)

  • Barry A. Cragg

    (University of Bristol, Wills Memorial Building)

  • Stephen P. Barnes

    (University of Bristol, Wills Memorial Building)

  • R. John Parkes

    (University of Bristol, Wills Memorial Building)

Abstract

Deep-sea sediments become apparently more hostile to life with increasing depth as temperature and pressure rise, and organic matter becomes increasingly recalcitrant. Demonstrations of high bacterial populations in deep sediments1,2 may thus appear enigmatic. How, then, can the continued presence of active bacterial populations in deep sediments that are over 10 million years old be explained? Although volatile fatty acids, particularly acetate, are important intermediates in the anaerobic degradation of organic matter3,4, their concentrations are kept very low in sediments (

Suggested Citation

  • Peter Wellsbury & Kim Goodman & Tanja Barth & Barry A. Cragg & Stephen P. Barnes & R. John Parkes, 1997. "Deep marine biosphere fuelled by increasing organic matter availability during burial and heating," Nature, Nature, vol. 388(6642), pages 573-576, August.
    • Handle: RePEc:nat:nature:v:388:y:1997:i:6642:d:10.1038_41544
    DOI: 10.1038/41544
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