40Ar–39Ar ages of intrusions in East Greenland: Rift-to-drift transition over the Iceland hotspot

@inproceedings{Tegner200840Ar39ArAO,
  title={40Ar–39Ar ages of intrusions in East Greenland: Rift-to-drift transition over the Iceland hotspot},
  author={Christian Tegner and Christopher K. Brooks and Robert Andrew Duncan and Lara E. Heister and Stefan Bernstein},
  year={2008}
}
Abstract Sixteen 40 Ar– 39 Ar ages are presented for alkaline intrusions to appraise prolonged post-breakup magmatism of the central East Greenland rifted margin, the chronology of rift-to-drift transition, and the asymmetry of magmatic activity in the Northeast Atlantic Igneous Province. The alkaline intrusions mainly crop out in tectonic and magmatic lineaments orthogonal to the rifted margin and occur up to 100 km inland. The area south of the Kangerlussuaq Fjord includes at least four… CONTINUE READING

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