Polymetamorphism in the NE Shackleton Range, Antarctica: Constraints from Petrology and U---Pb, Sm---Nd, Rb---Sr TIMS and in situ U---Pb LA-PIMMS Dating

• Main Authors: A. Zeh, I. L. Millar, M. S. A. Horstwood, Metapelitic Ne, Shackleton Range
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2003
• Subjects: Lord Nunatak; Meade; Meade Nunatak; Shackleton; Shackleton Range; Antarc*; Antarctica
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.523.5657; http://petrology.oxfordjournals.org/content/45/5/949.full.pdf

include garnet with contrasting zonation patterns and two age spectra. Garnet porphyroblasts in K-rich kyanite---sillimanite---staurolite---garnet---muscovite---biotite schists from Lord Nunatak show prograde growth zonation, and give Sm---Nd garnet, U---Pb monazite and Rb---Sr muscovite ages of 518...