permo carboniferous

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Professor David Beerling: Publications Listing
... from our lab. experiments, suggest atmospheric O2 levels may have risen to 35% during the Permo-Carboniferous. However, a rise in O2 above the present-day value of 21% remains hotly debated ... high O2/CO2 ratios in the Permo-Carboniferous atmosphere. Geochimica et Cosmochimica Acta, 66, in press. (372KB) Beerling, D.J. & Berner, R.A. (2000) Impact of a Permo-Carboniferous high O2 event on the ...
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