Image:Oxygen atmosphere.png

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Description
English: Representation of evolutionary and geological events leading to changes of oxygen content in earth's atmosphere since the formation of the planet.
עברית: תצוגה של המאורעות האבולוציוניים והגיאולוגיים שגרמו לשינויים בתכולת החמצן באטמוספרה של כדור הארץ

Geological events:

  • A) No oxidized iron found.
  • B) Oxidized iron bands in seabed rock = evidence for O2 in oceans.
  • C) Oxidized iron bands on land; ozone layer formation = evidence for O2 in atmosphere.

Biological events:

  • 1) Earliest fossilized cells found.
  • 2) Photosynthetic bacteria start producing O2.
  • 3) Aerobic metabolism evolves.
  • 4) Evolution of multicellular plants starts.
  • 5) Evolution of animals starts.

For sources, compare to:
Source

Originally from en.wikipedia; description page is/was here.
Date

2007-04-09 (original upload date)
Author

Original uploader was Tameeria at en.wikipedia
Permission
(Reusing this image)

Released into the public domain (by the author).

[edit] License information

Public domain This image has been (or is hereby) released into the public domain by its author, Tameeria at the wikipedia project. This applies worldwide.

In case this is not legally possible:
Tameeria grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

[edit] Original upload log

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  • 2007-04-09 18:37 Tameeria 617×467×8 (25102 bytes) Representation of evolutionary and geological events leading to changes of oxygen content in earth's atmosphere since the formation of the planet. Geological events: *A) No oxidized iron found. *B) Oxidized iron bands in seabed rock = evidence for O<sub>

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current14:30, 1 June 2007617×467 (25 KB)Yonidebest ({{Information |Description={{en|Representation of evolutionary and geological events leading to changes of oxygen content in earth's atmosphere since the formation of the planet. Geological events: *A) No oxidized iron found. *B) Oxidized iron bands in s)
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