Articles | Volume 2, issue 2
Research article
31 Jul 2020
Research article |  | 31 Jul 2020

Resolving the timescales of magmatic and hydrothermal processes associated with porphyry deposit formation using zircon U–Pb petrochronology

Simon J. E. Large, Jörn-Frederik Wotzlaw, Marcel Guillong, Albrecht von Quadt, and Christoph A. Heinrich

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Cited articles

Adams, C. G.: Neogene larger foraminifera, evolutionary and geological events in the context of datum planes, Pacific Neogene datum planes, 47–67, 1984. 
Annen, C.: From plutons to magma chambers: Thermal constraints on the accumulation of eruptible silicic magma in the upper crust, Earth Planet. Sc. Lett., 284, 409–416,, 2009. 
Arif, J. and Baker, T.: Gold paragenesis and chemistry at Batu Hijau, Indoneisa: implications for gold-rich porphyry copper deposits, Miner. Deposita, 39, 523–535, 2004. 
Audétat, A., Pettke, T., Heinrich, C. A., and Bodnar, R. J.: Special paper: the composition of magmatic-hydrothermal fluids in barren and mineralized intrusions, Econ. Geol., 103, 877–908, 2008. 
Banik, T. J., Coble, M. A., and Miller, C. F.: Porphyry Cu formation in the middle Jurassic Yerington batholith, Nevada, USA: Constraints from laser Raman, trace element, U-Pb age, and oxygen isotope analyses of zircon, Geosphere, 13, 1113–1132,, 2017. 
Short summary
The integration of zircon geochemistry and U–Pb geochronology (petrochronology) allows us to improve our understanding of magmatic processes. Here we could reconstruct the ~300 kyr evolution of the magma reservoir that sourced the magmas, fluids and metals to form the Batu Hijau porphyry Cu–Au deposit. The application of in situ LA-ICP-MS and high-precision CA–ID–TIMS geochronology to the same zircons further allowed an assessment of the strengths and limitations of the different techniques.