Earth’s oxygen atmosphere was delayed for a billion years by volcanic gases.
Tag: Archean
The Kaapvaal Craton and early life on planet earth
The Kaapvaal Craton in South Africa holds secrets about early life on the earth.
Chemosynthetic life: The first mass extinction
Chemosynthetic life probably formed the first ecosystem on planet earth
Cyanobacteria: Links to the origins of life
Investigations into early life must rely on matrix of evidence, called biosignatures.