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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

Blog post recommendation

Relative dating - dating the Earth before radioactive dating

'Dating the Earth – before the discovery of radioactivity; Charles Lyell and Mount Etna, 1828'.  The activity provides an opportunity to use simple mathematics in solving a long-standing geological problem. Students should be made aware that the figures are extremely approximate, and that the activity is designed to show the principle behind Lyell’s approach, rather than providing an accurate

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