IUGS/IAGC. Working Group on "Global Geochemical Baselines". / Shaun Reeder / Christer Ahlsved / Milan Bidovec / Alecos Demetriades / Miloslav Ďuriš / Andrew E. Grosz / Gyozo Jordan / Gerard Klaver / Annamaria Lima / Karol Marsina / Agim Mazreku / Patrick O'Connor / Reijo Salminen / Harry Sandström / Ulrich Siewers / David Smith / Tsuyoshi Tanaka / Timo Tarvainen / Walter de Vos / Benedetto De Vivo / Marino Vetuschi Zuccolini | 