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Award ID contains: 2136934

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  1. ; ; ; (, Nature Geoscience)
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  2. ; ; ; (, Geochronology)
    Measurements of cosmic-ray-produced beryllium-10, neon-21, and helium-3 in quartz in a soil profile from a forested landscape in the Oregon Coast Range show that the cosmogenic noble gases 21Ne and 3He are depleted relative to 10Be in the shallow subsurface. The noble gases are mobile in mineral grains via thermally activated diffusion and 10Be is not, implying that noble gas depletion is the result of surface heating by wildfires and subsequent mixing of partially degassed quartz downward into the soil. Cosmogenic noble gas depletion by wildfire heating of soils is a potential means of estimating wildfire intensity and/or frequency over pre-observational timescales. 
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  3. ; ; ; ; ; (, Geoderma)
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  4. ; ; ; ; ; ; ; ; (, Biogeochemistry)
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