The Ga-Pb Diagram for Origin Determination of Tourmalines LA-ICP-MS Analysis
Fig. Par81a-b Pb-Ga diagram of different tourmalines from Brazil, Mozambique and Nigeria. The two elements Pb and Ga were found to be suitable for origin determination of copper-bearing tourmalines, provided the color-zones are separately considered. Pb-concentrations are considerable higher in Nigerian tourmalines (Fig. Par81b and Par82a).
The Ga-Pb Diagram for Origin Determination of Tourmalines
