The Saxothuringian Terrane affinity of the metamorphic Stachów Complex (Strzelin Massif, Fore-Sudetic Block, Poland) inferred from zircon ages - Université Clermont Auvergne Accéder directement au contenu
Article Dans Une Revue Geological Quarterly Année : 2018

The Saxothuringian Terrane affinity of the metamorphic Stachów Complex (Strzelin Massif, Fore-Sudetic Block, Poland) inferred from zircon ages

Résumé

The Saxothuringian Terrane de fined in the west ern part of the Bo he mian Mas sif is re garded to have east erly con tin u a tions in the Karkonosze–Izera Mas sif, the Kamieniec Z¹bkowicki Belt and the Orlica–OEnie¿nik Dome. All these units com prise Early Or do vi cian (~500 Ma) metagranites as so ci ated with mica schists. Even more to the east, ~500 Ma metagranites and metasedimentary rocks oc cur also in the Strzelin Mas sif of the East Sudetes, where they are known as the pale and dark Stachów gneiss es, re spec tively. Al to gether, these rocks form the Stachów Com plex which was thrust on the Strzelin Com - plex of the Brunovistulicum Terrane dur ing the Variscan Orog eny. The con tri bu tion pres ents lines of ev i dence for a Saxothuringian af fin ity of the Stachów Com plex rocks: (1) the new SHRIMP U-Pb age data of zir cons from both the pale and dark Stachów gneiss es; (2) the in di ca tion that the zir con age spec tra from the ~500 Ma granitoids and their ac com pa ny ing metasedimentary rocks are sim i lar to those found in other parts of the Sudetes; (3) the “Armori can” age pat tern of in her ited zir cons of the pale Stachów gneiss es, as also ob served in the Saxothuringian Terrane; (4) the sim i lar ity of trace el e ments and Sm-Nd iso tope data of the Stachów gneiss es and cor re la tive rocks from the Karkonosze–Izera Mas sif and the Orlica–OEnie¿nik Dome.

Domaines

Géochimie

Dates et versions

hal-01793391 , version 1 (16-05-2018)

Identifiants

Citer

Teresa Oberc-Dziedzic, Ryszard Kryza, Stanisław Madej, Christian Pin. The Saxothuringian Terrane affinity of the metamorphic Stachów Complex (Strzelin Massif, Fore-Sudetic Block, Poland) inferred from zircon ages. Geological Quarterly, 2018, 62 (2), ⟨10.7306/gq.1405⟩. ⟨hal-01793391⟩
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