,,,,,,,,,,,,,,,,,,,,, Supplementary table 1: Zircon U–Pb LA-MC-ICP-MS data for metapelite sample UNG64 (N 11° 27.960’ E 77° 27.960’),,,,,,,,,,,,,,,,,,,,, Analysis spot,Spot size,U ,"ƒ206%1,2",,Isototopic ratios,,,,,,,,,Apparent ages (Ma),,,,,,,Degree of concordance (%) ,(?m),(ppm),,,206Pb*/238U,±2?,207Pb*/235U,±2?,207Pb*/206Pb*,±2?,rho,206Pb*/204Pb*1,,206Pb*/238U,±2?,207Pb*/235U,±2?,207Pb*/206Pb,±2?,, ,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,, UNG64-1-1,25,310,0.2,,0.1846,0.004,1.943,0.068,0.0763,0.0020,0.65,10286,,1092,23,1096,23,1103,53,,99.0 UNG64-1-2,25,234,6.0,,0.0785,0.002,0.625,0.057,0.0578,0.0051,0.25,295,,487,11,493,36,522,195,,93.3 UNG64-1-3,25,1350,2.5,,0.0809,0.002,0.665,0.025,0.0596,0.0019,0.57,721,,501,10,517,16,589,68,,85.1 UNG64-2-1,25,91,