EN I Our article, “Unravelling the protracted U-Pb zircon geochronological record of high to ultrahigh temperature metamorphic rocks: implications for provenance investigations“, is already available on the Geoscience Frontiers website! We discuss the possible causes of bias in the analysis of U-Pb ages in rocks that underwent extreme metamorphic conditions and propose a workflow inContinue reading “[Article] Unravelling the protracted U-Pb zircon geochronological record of high to ultrahigh temperature metamorphic rocks: Implications for provenance investigations”
Tag Archives: zircon geochronology
[Article] Zircon petrochronology reveals the moderately juvenile signature of a diatexite from the boundary zone between the Brasília and Ribeira orogens (SE Brazil): Relict of a Tonian arc?
EN | How fun is to find an exception to the rule?In our contribution we report a biotite-bearing granitic leucosome from Socorro-Guaxupé nappe of the Southern Brasília orogen with an anomalous juvenile-like signature.The zircon extracted from this rock yield a protracted spread of U–Pb ages from ca. 890 Ma to ca. 540 Ma and theContinue reading “[Article] Zircon petrochronology reveals the moderately juvenile signature of a diatexite from the boundary zone between the Brasília and Ribeira orogens (SE Brazil): Relict of a Tonian arc?”
[Article] Implications of the dominant LP–HT deformation in the Guanhães Block for the Araçuaí West-Congo Orogen evolution
EN | For far too long has the Guanhães Block been viewed as an empty square in the evolutionary models of the Araçuaí-West-Congo Orogen. A new publication in Gondwana Research uses petrochronological strategies with dating of multiple mineral phases, traditional thermobarometry and phase-diagram modeling to understand the conditions in which the main pervasive foliation wasContinue reading “[Article] Implications of the dominant LP–HT deformation in the Guanhães Block for the Araçuaí West-Congo Orogen evolution”
[Article] 4D history of the Nimbus VHMS ore deposit in the Yilgarn Craton, Western Australia
EN | The same principle applied to petrochronology can be utilized to better understand the timing and mechanisms of mineralization. Diverse isotopic constrains leads to the understanding of the 4D evolution of deposits, driving future discoveries. Different geochronometers indicate the existence of two main events that have interacted with the Nimbus deposit, Australia. If theContinue reading “[Article] 4D history of the Nimbus VHMS ore deposit in the Yilgarn Craton, Western Australia”
[Tips] Zircon role in Petrochronology
EN | Zircon is a petrochronology superstar and here is why: besides being a very robust chronometer, it can record different geological conditions during the formation of a rock. For example, are you aware that zircon morphology may constrain the temperature in which it was crystallized? Within this context, Araujo et al. (2020) explored zirconContinue reading “[Tips] Zircon role in Petrochronology”
PETROCHRONICS 