Beginning of photosynthesis using chlorophyll pigments
| Range | ~1.8 Billion years ago |
|---|---|
| Organism | Biosphere |
| Reference | Duursma EK, Boisson MPRM, Global oceanic and atmospheric oxygen stability considered in relation to the carbon-cycle and to different time scales. Oceanologica Acta (0399-1784) (Gauthier-Villars), 1994 , Vol. 17 , N. 2 , P. 117-141 link p.120 left column bottom paragraph |
| Comments | P.120 left column bottom paragraph: "About 1.8 billion years ago, photosynthesis started using chlorophyll pigments. This occurred first in water systems below a water column of about 10m, out of reach of the continued high level of hazardous UV radiation, which was absorbed by this water layer." |
| Entered by | Uri M |
| ID | 116087 |