Os and Sm/Nd Isotopic Constraints on Ultramafic Petrogenesis in the Helvetic Basement
T. Meisel, Th. Nägler and G. G. Biino
Isotopegeology, University of Bern, Erlachstrasse 9A, CH-3012 Bern, Switzerland
Mineralogy and Petrography, University of Fribourg, Pérolles, CH-1700 Fribourg, Switzerland