New constraints from U-Pb, Lu-Hf and Sm-Nd isotopic data on the timing of sedimentation and felsic magmatism in the Larsemann Hills, Prydz Bay, East Antarctica

Grew, E. S.Carson, ChristopherChristy, AndrewMaas, RolandYaxley, GregoryBoger, Steven D.Fanning, Christopher2015-12-100301-9268http://hdl.handle.net/1885/52542Complexly deformed gneisses in the Larsemann Hills, southern Prydz Bay, are customarily divided into a basement igneous complex (Søstrene Orthogneiss) and overlying metasediments (Brattstrand Paragneiss). New ion microprobe U-Pb zircon ages support thisKeywords: basement rock; hafnium; isotopic composition; lutetium; magmatism; metamorphism; metasediment; protolith; provenance; samarium-neodymium dating; sedimentation; SHRIMP dating; uranium-lead dating; zircon; Antarctica; East Antarctica; Larsemann Hills; Prydz Antarctica; Lu-Hf; Prydz Bay; SHRIMP ages; Sm-Nd; U-Pb; ZirconNew constraints from U-Pb, Lu-Hf and Sm-Nd isotopic data on the timing of sedimentation and felsic magmatism in the Larsemann Hills, Prydz Bay, East Antarctica201210.1016/j.precamres.2012.02.0162016-02-24