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: (U)HT metamorphism
[Article] (U)HT rocks from Madagascar
EN | Madagascar has by spectacular (U)HT rocks. Titanite in these rocks records the waning stages of UHTM followed by pervasive hydrothermal activity associated with U–Th and phlogopite mineralization. Contribution by the researcher Robert Holder (@thats.so.meta).Read more in Holder and Hacker (2019). Fluid-driven resetting of titanite following ultrahigh-temperature metamorphism in southern Madagascar. Chemical Geology! Rochas deContinue reading “[Article] (U)HT rocks from Madagascar”
[Article] The missing piece of the Paranapanema block in the Guaxupé nappe (Southernmost Brasília orogen)
EN | The Paranapanema block constitutes an important piece in paleogeographical reconstructions. However, few direct information about it in the Southernmost Brasília orogen is available as the block has been covered since the Cretaceous by the Parana basin. Surprisingly, two very similar samples of Opx-Cpx-Hbl banded granulites separated by 5km have shown strongly different U-PbContinue reading “[Article] The missing piece of the Paranapanema block in the Guaxupé nappe (Southernmost Brasília orogen)”
PETROCHRONICS 