Source and Cycling of Nitrogen in a Deeply Weathered Bedrock Rhizosphere

Kelsey L Crutchfield-Peters1, Alison K. Tune2, Todd E Dawson1 and Daniella Marie Rempe3, (1)University of California Berkeley, Integrative Biology, Berkeley, United States, (2)University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, (3)University of California Berkeley, Berkeley, United States