The Summons Lab • Geobiology and Astrobiology at MIT

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  • Biomarkers
    • What is a biomarker?
    • Biomarkers as source indicators
      • Steranes, hopanes, etc.
      • Hydrocarbons
      • Environmental indicators
      • Indicators of euxinia
      • Literature cited
    • Experimental methods
      • Source rock
      • Extraction
      • Fractionation
      • GC-MS
      • Compound-specific isotopes
    • Biomarker classification
      • Lipids
        • Acetogenic lipids
        • Isoprenoids
          • Acyclic and cyclic isoprenoids
          • Polycyclic isoprenoids
            • Hopanoids
            • Steroids
            • Carotenoids
            • Squalene
      • Isotopes
        • Selected publications on using isotopes as biomarkers
      • Kerogen
      • Diagenesis and catagenesis
  • People
    • Current lab members
    • Alumni & visitors
  • Facilities
    • Sample Preparation
    • Gas Chromatographs
      • Gas chromatography – mass spectrometry
      • High Resolution Mass Spectrometer
    • Liquid Chromatography
    • Isotope Ratio Mass Spectrometry
      • Compound-specific isotope analysis
  • Research
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  • Astrobiology
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Research

We have a diverse group of projects being pursued by an incredible group of people, both here at MIT and as widespread as Australia, China, Africa, the West Coast of the US, Germany, and Harvard. On each research page, you’ll find a bit about the project and who is working on it, both from our group and outside of our little Cambridge world.

Visual Portfolio, Posts & Image Gallery for WordPress


Early Human Paleolandscapes at Olduvai Gorge


Mind the Gut


Biogeochemistry of Microbialites


Earth’s Earliest Biogeochemical Cycles


Deep Time Drilling


OAEs and Mass Extinctions


Hydrothermal Ecosystems


The Proterozoic-Cambrian Boundary


Evolutionary Trends in Petroleum Composition


Neoproterozoic Petroleum Systems of Oman


Petroleum Systems of Gondwanaland


Ancient Purple and Green Bacteria


The Permo-Triassic Extinction

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