On ultrahigh temperature crustal metamorphism: Phase equilibria, trace element thermometry, bulk composition, heat sources, timescales and tectonic settings
نویسندگان
چکیده
منابع مشابه
Age and duration of ultrahigh-temperature metamorphism in the Anápolis–Itauçu Complex, Southern Brası́lia Belt, central Brazil – constraints from U–Pb geochronology, mineral rare earth element chemistry and trace-element thermometry
Integrated petrographic and chemical analysis of zircon, garnet and rutile from ultrahigh-temperature (UHT) granulites in the Anápolis–Itauçu Complex, Brazil, is used to constrain the significance of zircon ID-TIMS U–Pb geochronological data. Chondrite-normalized rare earth element (REE) profiles of zircon cores have positive-sloping heavy-REE patterns, commonly inferred to be magmatic, whereas...
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ژورنال
عنوان ژورنال: Geoscience Frontiers
سال: 2015
ISSN: 1674-9871
DOI: 10.1016/j.gsf.2014.09.006