At the dawn of the aerobic biosphere: The effect of oxygen on the development of biota in the Proterozoic and Early Paleozoic

Рожнов, С. В.

doi:10.1134/s0031030113090165

Cited by 3 publications

(4 citation statements)

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“…But there is an analogue -the Great Oxygenation Event. Earth's first lifeforms, anaerobic microbial cells, emerged into a world that lacked oxygen to respire and ozone to shield the surface from the sun's deadly rays (Fischer et al, 2016;Rozhnov, 2013). Such life had to live beyond the sun's reach, buried in the soil; suspended in rivers, lakes, ponds and the sea; or gathered in the ocean's depths around geothermal vents where it reduced hydrogen, sulphur, methane, or iron into the energy it needed to survive.…”

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confidence: 99%

“…Cyanobacteria colonies floated like vast mats in the upper reaches of Earth's oceans and may have also colonized the primordial seas' shallow shores (Rozhnov, 2013). Over millions of years the oxygen they produced pooled in scattered sinks which then oxygenated the atmosphere in fits and starts in rough conjunction with ongoing and fluctuating tectonic and volcanic processes (Canfield, 2014).…”

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confidence: 99%

“…Over millions of years the oxygen they produced pooled in scattered sinks which then oxygenated the atmosphere in fits and starts in rough conjunction with ongoing and fluctuating tectonic and volcanic processes (Canfield, 2014). A steep decline in atmospheric oxygen around 2 billion years ago then rebounded and resulted in a huge jump from 0.0002% to 0.2% of the atmosphere (Fischer et al, 2016;Rozhnov, 2013). Then, as volcanic activity ebbed and the Earth cooled oxygen levels stabilized at 0.2-0.3% before steadily accumulating over the eons to present-day levels (Canfield, 2014;Rozhnov, 2013;Sciuto and Moro, 2015).…”

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confidence: 99%

“…A steep decline in atmospheric oxygen around 2 billion years ago then rebounded and resulted in a huge jump from 0.0002% to 0.2% of the atmosphere (Fischer et al, 2016;Rozhnov, 2013). Then, as volcanic activity ebbed and the Earth cooled oxygen levels stabilized at 0.2-0.3% before steadily accumulating over the eons to present-day levels (Canfield, 2014;Rozhnov, 2013;Sciuto and Moro, 2015).…”

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confidence: 99%

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Algae and oxygen, humans and carbon: A Precambrian analogue for the Anthropocene

Carson

2019

The Anthropocene Review

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In 2003 Paul Crutzen and Will Steffen asserted that across Earth’s 4.5-billion-year history no analogue could be found for the Anthropocene. An analogue can, however, be located in the dim Precambrian past when, through oxygenic photosynthesis, cyanobacteria produced enough oxygen to alter the composition and character of the Earth System. The ‘Great Oxygenation Event’ that followed wiped out much of Earth’s anaerobic life while giving rise to all subsequent aerobic life. It also offers a clear comparison with the Anthropocene that implicates how we think about our current predicament.

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confidence: 99%