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Combining Lu–Hf garnet geochronology with in situ trace element analyses in garnet allowed us to gain new insight into the metamorphic evolution of UHP–UHT rocks in the Stary Gierałtów region, in the Polish Sudetes. Prograde garnet growth recorded by Rayleigh-type heavy REE (HREE) zoning in the felsic granulites indicates that the obtained 386.6±4.9 Ma Lu–Hf age represents the time of garnet crystallization...
Earth sciences deal with physical entities spanning 15 orders of magnitude, from nanometer (crystal lattice unit cells) to megameter (faults and orogens). The understanding of megameter-scale processes is greatly improved by the study of the nanometer-scale processes: the growth of crystals, their deformation under shear, and the transport of isotopes used for dating.From a physical point of view,...
Radiogenic isotopes studied in fluid inclusions are still a limited field, with great potential for expansion as analytical techniques improve. The main limitation for Sr, Ar and He isotope work is the very small number of radiogenic atoms produced in a typical fluid inclusion. The requirements to analysts are correspondingly high. Examples show that isotopic tracing on fluid inclusion fluids can...
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