Sm-Nd model age of an early Proterozoic gabbro-anorthosite from the Caledonian fold belt in North-East Greenland
DOI:
https://doi.org/10.34194/rapggu.v162.8255Abstract
Metamorphosed anorthositic and gabbro-anorthositic rocks are found as scattered occurrences in the basement gneisses of the Caledonian fold belt of North-East Greenland. A Tm-MD-nd model age determined on a gabbro- anorthositic sample yields a value of 2146 Ma. This model age is in agreement with the general age of crust formation in the region. The result shows that anorthosites, which are of Archaean derivation in many areas in Greenland, cannot on their own be used as an indicator of Archaean crust.
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Published
1994-01-01
How to Cite
Stecher, O., & Henriksen, N. (1994). Sm-Nd model age of an early Proterozoic gabbro-anorthosite from the Caledonian fold belt in North-East Greenland. Rapport Grønlands Geologiske Undersøgelse, 162, 135–137. https://doi.org/10.34194/rapggu.v162.8255
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This article is distributed under a CC-BY 4.0 licence, permitting free redistribution and reproduction for any purpose, even commercial, provided proper citation of the original work. Author(s) retain copyright over the article contents.
