@article{10,
  keywords = {Coesite, Erzgebirge (U)H province, Granulite, Monazite, REE, Thorium},
  author = {Prokop Z{\'a}vada and Pavla {\v S}t{\'\i}psk{\'a} and Pavl{\'\i}na Hasalov{\'a} and Martin Racek and Petr Je{\v r}{\'a}bek and Karel Schulmann and Andrew Kylander-Clark and Robert Holder},
  title = {Monazite geochronology in melt-percolated UHP meta-granitoids: An example from the Erzgebirge continental subduction wedge, Bohemian Massif},
  abstract = {Coupled age and trace element mapping in monazite grains using the Laser-Ablation Split-Stream ICP-MS technique was carried out for a sequence of samples from (U)HP crustal section in the Eger Crystalline Complex interpreted as a Variscan continental subduction wedge. The sampled section comprises banded orthogneiss with monazite protolith ages of 486 {\textpm} 3[10] Ma. The orthogneiss was heterogeneously transformed to migmatite, HP felsic granofels and U(HP) fine-grained Ky-Kfs granulite during coupled deformation and percolation of silicate melts in a subduction channel. Age of the (U)HP metamorphism and related melt percolation in the granulite is dated by Th-rich and HREE-poor monazite cores at 353.6 {\textpm} 2.7[8] Ma, that are in equilibrium with HREE-rich garnets. Th-rich cores of monazites in the migmatite, granofels and granulite that lack the (U)HP signatures show younger ages of 347.8 {\textpm} 3.4[8] Ma, 345.8 {\textpm} 2.4[8] Ma and 339.3 {\textpm} 1.3[7] Ma, respectively. The monazite rims with lower Th and higher HREE contents than the monazite cores are likely a result of (re)crystallization in equilibrium with melt that partly dissolved the HREE-rich prograde garnet during decompression. This (re)crystallization is constrained by ages of 344.2 {\textpm} 1.6[8] Ma in (U)HP granulites and 338{\textendash}340 {\textpm} [8] Ma in migmatites, granofelses and granulites without the (U)HP signature. The groups of ages from 353 Ma to 338 Ma, are significantly different when only their in-run uncertainties (7{\textendash}10 Ma) are compared and indicate a 15 {\textpm} 3 Ma period of monazite (re)crystallization from burial/peak to exhumation.},
  year = {2021},
  booktitle = {Chemical Geology},
  journal = {Chemical Geology},
  series = {Chemical Geology},
  volume = {559},
  pages = {119919},
  month = {2021/01/05/},
  isbn = {0009-2541},
  url = {http://www.sciencedirect.com/science/article/pii/S0009254120304587},
  doi = {https://doi.org/10.1016/j.chemgeo.2020.119919},
}