Journal of the Virtual Explorer

Eight representative samples were selected for geochemical analysis and the whole rock major element analyses for three samples (AG-2, AG-4, AG-6) were carried out at National Geophysical Research Institute (NGRI), Hyderabad, India on XRF and whole rock major and trace element analyses for five other samples (AG-8, AG-10, NK-12, NK-13, NK-18) were carried out at Regional Sophisticated Instrumentation Centre, IIT Bombay, Mumbai, India on XRF (Philips PW 2404). The rare earth elements (REE) for the samples (AG-2, AG-4, and AG-6) were carried out on ICP-MS (Perkin Elmer Sciex ELAN DRC II) at NGRI, Hyderabad. Two representative granulite samples S08-27 and S08-42 were analysed at (NGRI), Hyderabad, India for major trace and REE. The accuracy (% RSD) for major oxides and trace elements is 1% and the precision is 0.5% for the data generated from IIT Bombay. The detection limit is 1ppm for most of the elements. The precision of ICP-MS data are <5% RSD for all the trace elements including the REE. Whole rock major and trace element data of the granitoids and the granulites are presented in Table 1.