1992/01/01 by Susanne Klee, Klee, S., Arnd Baumann +3
Earth and Planetary Sciences · Environmental Science · Social Sciences · #Geology and Paleoclimatology Research #Pleistocene-Era Hominins and Archaeology #Polar Research and Ecology #Science
paper · pdf · doi:10.2312/polarforschung.60.2.101
openalex publication_date 1992/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/15
Samples of high grade metamorphie basement rocks of Wilson Terrane cropping out in the Deep Freeze Range and on Kay Island (Fig, 1) were collected during GANOVEX VI to study their isotopic evolution.The age and origin of granulite facies gneisses and of their migmatite host rocks are especially of interest for the interpretation of the geological and tectonic development of North Victoria Land.Another important research aspect is the influence of the polyp hase meramorphic evolution on the isotopic systems of whole rocks and minerals like zircon, garnet, orthopyroxene, amphibole and felds par.Two samples of paragneisses collected nearly 500 m northeast of Gondwana Station (7436' S, 16413' E) were analyzed up to present.They are part of the high grade basement complex.SampIe ANT 102 is a medium grained biotite-feldspar-gneiss, sample ANT 104 is a fine grained gamet-biotite-gneiss.Both samples contain zircons and monazites as accessory minerals which were analyzed by conventional Ll-Pb-method of dating.