Nature Communications (Aug 2022)

Terrigenous dissolved organic matter persists in the energy-limited deep groundwaters of the Fennoscandian Shield

  • Helena Osterholz,
  • Stephanie Turner,
  • Linda J. Alakangas,
  • Eva-Lena Tullborg,
  • Thorsten Dittmar,
  • Birgitta E. Kalinowski,
  • Mark Dopson

DOI
https://doi.org/10.1038/s41467-022-32457-z
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 14

Abstract

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Dissolved organic matter in the Fennoscandian Shield deep continental bedrock fracture waters of varying characteristics and ages carries a strong terrigenous signature, and only a small proportion of this potential energy source links to the deep biosphere microbial community.