Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10144981 | Geochimica et Cosmochimica Acta | 2018 | 17 Pages |
Abstract
The temperature and PCO2 transitions in the Precambrian were finally calculated based on the relationship between ÎHCO2â², T and FCO2 and the greenhouse effects of CO2. The calculated CO2 levels are high enough that the temperature could have been maintained at >0â¯Â°C only by CO2 through the Precambrian. The consistent PCO2 estimates from paleosols (fossil weathering profiles) in the literature support the argument. The calculated temperatures suggest that the Earth could have been cool to hot until around the end of Archean and cool to moderate afterwards.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Yoshiki Kanzaki, Takashi Murakami,