Sm-Nd model age of an early Proterozoic gabbro-anorthosite from the Caledonian fold belt in North-East Greenland
1994 ◽
Vol 162
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pp. 135-137
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A Value
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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.
1994 ◽
Vol 162
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pp. 129-133
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1998 ◽
Vol 130
(2)
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pp. 103-120
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Keyword(s):
1999 ◽
pp. 10-22
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1995 ◽
Vol 72
(3-4)
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pp. 301-315
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Keyword(s):
1994 ◽
Vol 162
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pp. 163-168
1994 ◽
Vol 162
◽
pp. 103-112
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1993 ◽
Vol 63
(1-2)
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pp. 163-178
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