Table 1: U-Pb analyses of zircons and monazites of paragneisses which belong to the high grade metamorphic basement of Wilson Terrane ...

Samples of high grade metamorphic basement rocks of Wilson Terrane cropping out in the Deep Freeze Range and on Kay Island 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...

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Bibliographic Details
Main Authors: Klee, Susanne, Baumann, Albrecht, Thiedig, Friedhelm
Format: Dataset
Language:English
Published: PANGAEA 1992
Subjects:
Event label
Sample code/label
DEPTH, sediment/rock
Comment
Size fraction
Sample mass
Uranium
Lead
Lead-206
Lead-207/Lead-206 ratio
Lead-208/Lead-206 ratio
Lead-206/Uranium-238 ratio
Lead-207/Uranium-235 ratio
Age, dated
Geological sample
Age, 238U/206Pb Uranium-Lead
Age, 235U/207Pb Uranium-Lead
Age, 206Pb/207Pb Lead-Lead
Victoria Land
Online Access:https://dx.doi.org/10.1594/pangaea.763304
https://doi.pangaea.de/10.1594/PANGAEA.763304
Description
Summary:Samples of high grade metamorphic basement rocks of Wilson Terrane cropping out in the Deep Freeze Range and on Kay Island 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 polyphase metamorphic evolution on the isotopic systems of whole rocks and minerals like zircon, garnet, orthopyroxene, amphibole and feldspar. ... : Zircon ages vary between 480 Ma and 488 Ma, monazites yield ages between 482 Ma and 485 Ma. In Table 1 ages are calculated from Ma to ka. ...

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