Early Jurassic and Late Cretaceous magmatism on Horseshoe Island, Antarctic Peninsula: New U-Pb and microstructural data

Early Jurassic U-Pb age is obtained for both foliated and undeformed granites on Horseshoe Island, Antarctic Peninsula. Some microstructures in the foliated granites/orthogneisses indicate high-temperature greenschist or low- to medium-temperature amphibolite facies deformation conditions. Additiona...

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Bibliographic Details
Published in:Geologica Balcanica
Main Authors: Velev, Stefan, Lazarova, Anna, Karaoglan, Fatih, Vassilev, Oleg, Selbesoğlu, Mahmut Oğuz
Format: Article in Journal/Newspaper
Language:English
Published: Zenodo 2023
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Online Access:https://doi.org/10.52321/GeolBalc.52.3.29
Description
Summary:Early Jurassic U-Pb age is obtained for both foliated and undeformed granites on Horseshoe Island, Antarctic Peninsula. Some microstructures in the foliated granites/orthogneisses indicate high-temperature greenschist or low- to medium-temperature amphibolite facies deformation conditions. Additionally, a Late Cretaceous age is yielded for a gabbro intruding the deformed granitoids.