Mesozoic and Cenozoic plutonic evolution of SE Asia: evidence from Sumatra, Indonesia

  title={Mesozoic and Cenozoic plutonic evolution of SE Asia: evidence from Sumatra, Indonesia},
  author={W. J. Mccourt and M. J. Crow and Edwin John Cobbing and T. C. Amin},
  journal={Geological Society, London, Special Publications},
  pages={321 - 335}
Abstract New K/Ar mineral ages from the Barisan Mountains of southern Sumatra suggest four main periods of plutonic activity: Miocene-Pliocene (20–5 Ma), Early Eocene (60–50 Ma), Mid-Late Cretaceous (117–80 Ma) and Jurassic-Early Cretaceous (203–130 Ma). These and all other published ages from exposed plutons in western Sumatra indicate a further period of plutonic activity in the Permian (287–256 Ma). They also suggest either that Early Mesozoic activity began in the Late Triassic, or that… Expand

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