Sentences with phrase «anoxic lake bottoms»
They found that high rates of carbon accumulation in lake sediments were stimulated by several factors, including «thermokarst erosion and deposition of terrestrial organic matter, -LSB-...] nutrient release from thawing permafrost that stimulated lake productivity, and by slow decomposition in cold, anoxic lake bottoms.»
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The breach is wider than the old culverts, and researchers are now waiting to see whether the anoxic deep brine layer re-establishes itself, and whether another «methylmercury factory will lurk at the bottom of the lake» Johnson says.