Geodynamic evolution of Proterozoic supracrustal rocks from the northern Shackleton Range, East Antarctica
Final Report Abstract
With the help of detailed geochronological analysis, combined with Hf isotope data on single zircon domains, numerous lithogeochemical and bulk rock isotopic (Sr, Nd, Pb isotopes) as well as mineral-chemical analyses for thermobarometric calculations, three different terranes could be identified within the Shackleton Range. For each of these terranes, a series of distinct magmatic and metamorphic events could be recognized and the likely tectonic setting for these events reconstructed. In addition, the new combined U-Pb and Lu- Hf isotope data obtained for numerous zircon grains from samples representing different metamorphic grades improved substantially our understanding and thus future interpretations of single zircon age data from amphibolite-facies metamorphic terranes.
Publications
- (2006). First evidence of eclogite-facies metamorphism in the Shackleton Range, Antarctica: Tracer of a suture between East and West Gondwana? Geology 34, 133-136
Schmädicke, E. & Will, T. M.
- 2006, A digital spatial database of Maud Belt geology. 29th SCAR Meeting, Hobart, 9 – 19 July 2006
Doyle, G., Frimmel, H.E.
- 2006, First evidence of eclogite-facies metamorphism in the Shackleton Range, Antarctica: Tracer of a suture between East- and West-Gondwana? 29th SCAR Meeting, Hobart, 9 – 19 July 2006
Schmädicke, E., Will, T., Schubert, W., Frimmel, H.E.
- 2006, Petrogenesis of Proterozoic mafic rocks in western Dronning Maud Land. 29th SCAR Meeting, Hobart, 9 – 19 July 2006
Frimmel, H.E., Grosch, E., Bisnath, A., Board, W.S.
