K. Govindaraju1, I. Roelandts2
1CNRS, Centre de Recherches Pétrographiques et Géochimiques B.P. 20, 54501 Vandoeuvre-lès-Nancy Cedex, France
2Geology, Petrology and Geochemistry, University of Liège, B 4000 Sart Tilman, Liège 1, Belgium
Tóm tắt
The first report (1980) on the three samples, Anorthosite AN‐G, Basalt BE‐N and Granite MA‐N resulted in the chemical characterization of major, minor and 30 trace elements. The present report confirms the validity of a great majority of these working values, in addition to presenting working values for 20 more trace elements for each sample. Only compiled data on trace elements are presented, followed by Tables of statistical parameters used as a basis for their evaluation, both statistical and subjective. A plea is made to obtain more data on platinum group elements and on other “difficult” trace elements (Au, B, Bi, Se, Te, TI, …). The three samples have been processed in 900 kg amounts and, therefore, they are likely to remain available for some decades to come. As such, it is certainly worthwhile to take pains to characterize them well for even these difficult trace elements.
