What is it about?
Detailed cathodoluminescence (CL) and back scattered electron (BSE) imaging of zircon crystals, coupled with in-situ U-Pb zircon dating by LA-MC-ICP-MS were used to develop new insights into the evolution of a monzogranite from Omanovac Quarry (Psunj Mt.) and from monzogranites from Šandrovac Quarry and Kišeljevac Creek (Papuk Mt.), both Slavonian Mountains (Croatia).
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Why is it important?
This paper is shown that the investigated granite intrusions occurred earlier (in Late Devonian) than previous radiometric studies have reported.
Perspectives
LA ICP-MS (Laser Ablation Inductively Coupled Plasma Mass Spectrometry) enables highly sensitive elemental and isotopic analysis to be performed directly on solid samples.This kind of modern technology is crucial and irreplaceable for isotopic analysis of small mineral grains as zircons, and the best way to investigate geological history of old crystalline rocks in order to understand and date the processes which affected regional geological setting.
PhD Marija Horvat
Croatian Geological Survey
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This page is a summary of: Geochronology of granitoids from Psunj and Papuk Mts., Croatia, Geochronometria, October 2018, De Gruyter,
DOI: 10.1515/geochr-2015-0099.
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