Jose David Urquiza Munoz¹, Daniel Magnabosco Marra¹, Robinson I Negron Juarez², Rodil Tello Espinoza³, Waldemar Alegria Muñoz³, Tedi Pacheco Gomez³, Jeffrey Q Chambers⁴, Alexander Brenning⁵ and Susan Trumbore¹, (1)Max Planck Institute for Biogeochemistry, Jena, Germany, (2)Lawrence Berkeley Natl Lab, Berkeley, CA, United States, (3)National University of the Peruvian Amazon - UNAP, Iquitos, Peru, (4)University of California, Berkeley, CA, United States, (5)Friedrich Schiller University of Jena, Jena, Germany