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

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Geosonnet 27

Selenium is sulfur’s sober mate, Not lost to vapor bubbles of the mind In rock or water, should one saturate They stay together, besties of a kind. Se cannot be photosynthesized To form selenate in anoxic seas From fractionation, we hypothesize an oxic whiff in late Archean breeze. The isotopic signal is preserved when anions are partially reduced. Complete reduction, ratios are

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