Neo-Tethyan magmatism and metallogeny in Myanmar - An Andean analogue?

Nicholas J. Gardiner, Michael P. Searle, Laurence J. Robb, Christopher K. Morley

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64 Citations (Scopus)

Abstract

Plate margin tectonism, magmatic and hydrothermal processes, and the genesis of mineral deposits are intricately linked. In Myanmar two near-parallel magmatic belts, that together contain a significant proportion of that country's mineral wealth, have contrasting metallogenic endowments. The Mogok-Mandalay-Mergui Belt hosts crustal melt S-type granites with significant tin-tungsten mineralization, while the Wuntho-Popa Arc comprises I-type granites and granodiorites with copper-gold mineralization. The spatial juxtaposition of the two belts and their distinct but consistent metallogenic endowment bears strong similarities to the metallogenic belts of the South American Cordillera. Recent U-Pb age dating has shown the potential for the two belts to be near-contemporary from the Late Cretaceous to Eocene. Here we investigate whether an Andean-type setting during subduction of Neo-Tethys could explain the observed magmatism and mineralization within these two belts.

Original languageEnglish
Pages (from-to)197-215
Number of pages19
JournalJournal of Asian Earth Sciences
Volume106
DOIs
Publication statusPublished - 1 Jul 2015
Externally publishedYes

Keywords

  • Andean
  • Mogok
  • Myanmar-Burma
  • Neo-Tethys
  • Tin-tungsten
  • Zircon U-Pb dating

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