The garden in which life evolved from slime
Did not have apples, naked girls, delights.
Although the details have been lost to time
clay seems more likely, or serpentinites.
Hydrated mantle min’rals do not tempt
But their kinetics none-the-less intrigue
Relationship twixt rock and sea attempts
at understanding help if we know speed.
The magnetite which serpentine expels
Contains trace actinides which will decay.
The helium which in the crystal dwells
Gives cooling time and late stage growth away.
Three million years ago, when
Lucy ran
The final Greek tectonic stretch
began.
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