Silent witnesses

How geochemistry tells about climate and environments

Things I learned today

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Entrance Triple oxygen isotope compositions of dinosaur egg shells can be used to reconstruct past atmospheric carbon dioxide levels.

Four different geochemical societies were incapable of finding a single woman to award any of their ten prestigious medals to.

Copper and iron isotopes vary with AB0 blood types.

Copper isotope values in blood are a more reliable marker for cancer severity than currently used antigens.

The top half of most sapropels has vanished due to progressive top-down oxidation.

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