Wednesday, June 22, 2016

Geosonnet 41



The rock of rocks, zircon is not disturbed
As mountains grow, then wash into the sea.
Its isotopic clock is not perturbed
Providing billion year chronomotry.
But like Smaug’s waistcoat, or Achillies’ heel
The Earth’s timekeeper has a fatal strain
A brine containing fluorine is ideal
For mobilizing metals from this grain
Earth’s body’s precious fluids rearrange
The normally immobile REE
And actinides, and other metals strange
To fluid induced rock mobility.
   The thermal history is not innate
   When heat producing elements migrate.



Other geosonnets: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41



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