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


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Velev S., Lazarova A., Karaoğlan F., Vassilev O., Selbesoğlu M. O.

GEOLOGICA BALCANICA, cilt.52, sa.3, ss.29-32, 2023 (Scopus)

Özet

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.