Template:Did you know nominations/Sadler effect

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Revision as of 04:27, 28 June 2013 by imported>DanHobley (Nomination of Sadler effect for DYK)
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Sadler effect

  • explains why more ancient geological Periods are longer than more recent ones?

Created by DanHobley (talk). Self nominated at 04:27, 28 June 2013 (UTC).