Contrasting Granite Metallogeny through the Zircon Record: A Case Study from Myanmar.

ABSTRACT: Granitoid-hosted mineral deposits are major global sources of a number of economically important metals. The fundamental controls on magma metal fertility are tectonic setting, the nature of source rocks, and magma differentiation. A clearer understanding of these petrogenetic processes has been forged through the accessory mineral zircon, which has considerable potential in metallogenic studies. We present an integrated zircon isotope (U-Pb, Lu-Hf, O) and trace element dataset from the paired Cu-Au (copper) and Sn-W (tin) magmatic belts in Myanmar. Copper arc zircons have juvenile εHf (+7.6 to +11.5) and mantle-like δ¹⁸O (5.2-5.5‰), whereas tin belt zircons have low εHf (-7 to -13) and heavier δ¹⁸O (6.2-7.7‰). Variations in zircon Hf and U/Yb reaffirm that tin belt m

SUBMITTER: Gardiner NJ 

PROVIDER: S-EPMC5429697 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature