Article · Wikipedia archive · Last revised Aug 6, 2026

Lancaster Aulacogen

The Lancaster Aulacogen is a geological structure underlying Lancaster Sound and Prince Regent Inlet in the Arctic Archipelago of Nunavut, Canada. It formed as a result of extensional tectonics during the Eurekan Rifting Episode, which took place in the Canadian Arctic Rift System from the Cretaceous to the Tertiary.

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Aug 6, 2026
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The Lancaster Aulacogen is a geological structure underlying Lancaster Sound and Prince Regent Inlet in the Arctic Archipelago of Nunavut, Canada.1 It formed as a result of extensional tectonics during the Eurekan Rifting Episode, which took place in the Canadian Arctic Rift System from the Cretaceous to the Tertiary.2

References

References

  1. Kerr, J. Wm. (1979). "Structural Framework of Lancaster Aulacogen, Arctic Canada". Open File 619. Geological Survey of Canada: 31.
  2. E. M. Nairn, Alan; Churkin, Jr., Michael; G. Stehli, Francis (1981). The Ocean Basins and Margins: The Arctic Ocean. Vol. 5. Springer Science+Business Media. p. 166. ISBN 978-1-4757-1250-6.