%0 Journal Article %T Pb–Sr–Nd Isotope Data from 30 and 300 Ma Collision Zone Carbonatites in Northwest Pakistan %A Tilton, G. R. %A Bryce, J. G. %A Mateen, A. %J Journal of Petrology %V 39 %N 11-12 %P 1865-1874 %@ 0022-3530 %D 1998-11-01 %I Oxford University Press %~ DeepDyve