We address fundamentally geobiologic questions via the sedimentary record
A sample of current project themes
Stromatolites!
Stromatolites as biosignatures, or maybe not all the time?
How do squishy mats become lithified? (Currently funded via NASA)
Origin of textures in microbialites
Record of pre-GOE oxygen/bubbles in stromatolites
Critical Earth-Life Transitions
End Triassic Mass Extinction, an analogue for rising CO2
Terminal Proterozoic, isotope excursions, and origin of animals
Cambrian Substrate Revolution and biogeochemical cycles
Eocene Hot House
What constitutes a biosignature/biosedimentology?
microbe-mineral interaction
microbe-sediment interaction
Ooids: what are they trying to tell us (that is, if they could talk)?
Geobiology of alkaline lake systems and relevance to ancient Earth/Exobiology
Diagenesis of carbonates and how it affects geochemical records through time
Geobiology of concretions and other diagenetic phases
Archean and Proterozoic geobiology
Carbonates!