iPod iChing -

Early friday, and we move to ask:
iPod - was the Earth's atmosphere anoxic in the Archaean before 2.4 Gyr BPE or did we have oxic episodes going as far back as 3.8 Gyr BPE?

Whoosh goes the randomizer.
Whoosh.

• The Covering: Take of Me - Alison Moyet
• The Crossing: Summertime - Ella Fitzgerald
• The Crown: Kata Rokkar - Björk
• The Root: Í dansi með þér - Björk
• The Past: Feeling of Falling - Bonnie Raitt
• The Future: Did You Ever See a Lassie - Twin Sisters
• The Questioner: Death at One's Elbow - Smiths
• The House: The Grey Goose - Burl Ives
• The Inside: Nógan Gefur Snjó a Snó
• The Outcome: Við Eigum Hvor Annan Að

Hm, feisty small female singers galore...

Future: "this way and that way and this way and that way..."
Interesting Questioner, not sure what to make of the House.
The Inside is a traditional rhyme on "Pleny of snow upon snow" - hm, are oxic episoded tied to snowball Earth scenarios? Sort of even makes sense. I guess the Crossing had more of a foreboding than I realised.

Outcome: is the Icelandic version of the theme tune to Toy Story - Woody and Buzz's "You've Got A Friend in Me" song, if I remember my children's songs. Much better than the original, must say.
Hm, lyrics talk about "going the same way, along the sea and beach" and "rain and snow" - follows the theme of the Inside.

So, clearly there were some oxic/anoxic oscillations in the archaean, and it is somehow coupled to the large scale glaciation episoded. Most intriguing, eh?

As always, the Key as explained by Sean