Linking the end of an ice age with atmospheric oxygen
Nature Communications
2011년10월12일
Evidence for a link between rising atmospheric oxygen and the end of an ice age during the Early Palaeoproterozoic is reported in Nature Communications this week. The result supports previous work, which suggests that as the Earth recovered from an ice age this acted to speed up the rise in the atmospheric oxygen levels, and therefore also helps explain the connection between ice ages which occurred 2.5-2.0 billion years ago and the Great Oxidation Event.
Yasuhito Sekine and colleagues analysed Osmium isotopes in sediments dating from during and after the second Palaeoproterozoic ice age. Their findings, from shallow marine environments, suggest increasing atmospheric oxygen levels during this time are in agreement with the hypothesis that the recovery from the ice age accelerated the Great Oxidation Event.
doi: 10.1038/ncomms1507
리서치 하이라이트
-
8월9일
Ecology: Climate change can aggravate over half of known human pathogensNature Climate Change
-
8월4일
Environment: Extreme flooding and drought make risk management difficultNature
-
8월3일
Environment: Salt may inhibit lightning in sea stormsNature Communications
-
7월29일
Environment: Costs of amphibian and reptile invasions exceeded US$ 17 billion between 1986 and 2020Scientific Reports
-
7월27일
Environment: Plastic pollution encourages bacterial growth in lakesNature Communications
-
7월27일
Ecology: Using fallow land to grow vanilla increases biodiversityNature Communications
