Correlation Engine 2.0
Clear Search sequence regions

  • crude oil (1)
  • meteoroids (1)
  • minerals (1)
  • sulfur (1)
  • thiophenes (8)
  • Sizes of these terms reflect their relevance to your search.

    The question whether organic compounds occur on Mars remained unanswered for decades. However, the recent discovery of various classes of organic matter in martian sediments by the Curiosity rover seems to strongly suggest that indigenous organic compounds exist on Mars. One intriguing group of detected organic compounds were thiophenes, which typically occur on Earth in kerogen, coal, and crude oil as well as in stromatolites and microfossils. Here we provide a brief synopsis of conceivable pathways for the generation and degradation of thiophenes on Mars. We show that the origin of thiophene derivatives can either be biotic or abiotic, for example, through sulfur incorporation in organic matter during early diagenesis. The potential of thiophenes to represent martian biomarkers is discussed as well as a correlation between abundances of thiophenes and sulfate-bearing minerals. Finally, this study provides suggestions for future investigations on Mars and in Earth-based laboratories to answer the question whether the martian thiophenes are of biological origin.


    Jacob Heinz, Dirk Schulze-Makuch. Thiophenes on Mars: Biotic or Abiotic Origin? Astrobiology. 2020 Apr;20(4):552-561

    Expand section icon Mesh Tags

    Expand section icon Substances

    PMID: 32091933

    View Full Text