APPLICATION OF THE 190PT-186Os ISOTOPE SYSTEM TO DATING PLATINUM MINERALIZATION AND OPHIOLITE FORMATION: AN EXAMPLE FROM THE MERATUS MOUNTAINS, BORNEO. - COGGON, J. A.; NOWELL, G. M.; PEARSON, D. G.; PARMAN, S. W. (Economic Geology & the Bulletin of the Society of Economic Geologists, 2011)