Geochemical evidence

An area near Marble Bar at sunset

Hydrothermal vent systems

Web resources:

Looking for the geochemical signs of life

A NASA geochemical strategy from 1995 for looking for life on Mars, including a critical review of the experiments carried out by the Viking landers on Mars in 1976.

Contents

Introduction

Context

• Planetary Science and Origins

Early Life

• Abby's Reef
  • Reef FAQ

Evidence

• Localities
  • Trendall Locality
  • Dresser Formation
  • Schopf Locality
  • Shark Bay
• Geology
  • Maps
  • Stratigraphy
  • Sedimentology
    • Normal marine environment
    • Hydrothermal vent systems
  • Geochemical evidence
    • Isotopic
    • Biomarkers
  • Stromatolites
  • Microfossils
  • Tree of Life
    • Archaea
    • Cyanobacteria
    • DNA
    • 16S rRNA

Acknowledgements