Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Reconstructing Precambrian pCO2 and pO2 Using Paleosols

Reconstructing Precambrian pCO2 and pO2 Using Paleosols

Sheldon, Nathan D.
Mitchell, Ria L.
Dzombak, Rebecca M.

Paperback

Series: Elements in Geochemical Tracers in Earth System Science

Gifts & Stationery GeneralGeneral Science

ISBN10: 1108819001
ISBN13: 9781108819008
Publisher: Cambridge University Press
Published: Mar 4 2021
Pages: 38
Weight: 0.14
Height: 0.08 Width: 6.00 Depth: 9.00
Language: English
Paleosols formed in direct contact with the Earth's atmosphere, so they can record the composition of the atmosphere through weathering processes and products. Herein we critically review a variety of different approaches for reconstructing atmospheric O2 and CO2 over the past three billion years. Paleosols indicate relatively low CO2 over that time, requiring additional greenhouse forcing to overcome the 'faint young Sun' paradox in the Archean and Mesoproterozoic, as well as low O2 levels until the Neoproterozoic. Emerging techniques will revise the history of Earth's atmosphere further and may provide a window into atmospheric evolution on other planets.

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