Sensitive high-resolution ion microprobe U-Pb dating of prograde and retrograde ultrahigh-temperature metamorphism as exemplified by Sri Lankan granulites

Sajeev, K.Williams, IanOsanai, Y2015-12-070091-7613http://hdl.handle.net/1885/18700Ultrahigh-temperature (UHT) granulites of the central Highland Complex, Sri Lanka, underwent some of the highest known peak temperatures of crustal metamorphism. Zircon and monazite U-Pb systems in granulites near Kandy, the highest grade region (~1050 °Keywords: Isothermal decompression; Partial melting; Peak temperatures; Post-peak; Protoliths; Sensitive high-resolution ion microprobe; Source region; Sri Lanka; Time evolutions; Ultrahigh temperature; Underplating; Geochronology; Monazite; Phosphate minerals; QuaSensitive high-resolution ion microprobe U-Pb dating of prograde and retrograde ultrahigh-temperature metamorphism as exemplified by Sri Lankan granulites201010.1130/G31251.12016-02-24