News tagged with oxygen concentration

Irregular decreases in aquifer oxygenation

In the course of the last few decades, the oxygen concentration levels in aquifers in the Swiss Plateau have dropped irregularly. Results of the National Research Programme "Sustainable Water Management" (NRP 61) suggest ...

dateDec 03, 2013 in Environment
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The oldest evidence of bioturbation on Earth

The Ediacaran Period, an interval in Earth's history after the Snowball Earth glaciations but before the Cambrian radiations, marks the introduction of complex macroscopic organisms synchronously in unrelated groups. It has ...

dateMar 20, 2012 in Earth Sciences
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