The remote lower reaches of the Rennick Glacier in the far north of Victoria Land hold some
of the least-explored outcrop areas of the Transantarctic basin system. Following recent
international field-work efforts in the Helliwell Hills, we here provide a comprehensive
emendation to the regional stratigraphy. Results of geological and palaeontological
reconnaissance and of petrographic, geochemical and palynostratigraphic analyses reveal
a stack of three previously unknown sedimentary units in the study area: the Lower Triassic …

Microstructural investigations of mantle xenoliths from the Mt. Melbourne area were
undertaken to reveal the origin of S-wave splitting beneath northern Victoria Land,
Antarctica. The six analyzed peridotites contain various deformation features. The rotated
olivine maxima of [100] and [010] into horizontal and vertical orientations, respectively, are
classified into five samples with a D-type crystallographic preferred orientation (CPO) and
one sample as an A-type CPO. The D-type olivine fabric can be explained by multiple slip …