Assessing the 40K decay constant by intercalibration with U-Pb, Rb-Sr and K-Ca chronometers
Maria O Naumenko-Dèzes1, Thomas F Nagler2, Klaus Mezger2 and Igor M Villa3, (1)Bureau de recherches géologiques et minières (BRGM), Orléans, France, (2)University of Bern, Bern, Switzerland, (3)University of Milan - Bicocca, Milan, Italy