Carmacks Group

The Carmacks Group is a volcanic group of Late Cretaceous age in southwestern Yukon, Canada. It contains epiclastic breccias and sintered tuffs, as well as basaltic, trachybasaltic and tristanitic lava flows. These deposits are interbedded with volcanic sandstone and are chemically calc-alkaline to alkaline. The chemical composition of the Carmacks Group is typical of volcanism along subduction zones. The assumption that the Carmacks Group represents a displaced portion of the Yellowstone hotspot track lacks geologic credibility.

See also

References

  1. ↑ Grond, H. C.; Churchill, S. J.; Armstrong, R. L.; Harakal, J. E.; Nixon, G. T. (1984). "Late Cretaceous Age of the Hutshi, Mount Nansen, and Carmacks Groups, Southwestern Yukon Territory and Northwestern British Columbia". Canadian Journal of Earth Sciences. 21 (5). NRC Research Press: 554. Bibcode:1984CaJES..21..554G. doi:10.1139/e84-060. ISSN 0008-4077.
  2. ↑ Symons, D. T. A.; Kawasaki, K.; McCausland, P. J. A.; Hart, C. J. R. (2017). "Palaeopole for the 69 Ma Prospector Mountain Stock: A Critique of the Carmacks/'Baja BC' Transport Estimate for Yukon, Canada". Geophysical Journal International. 208 (1). Oxford University Press: 359, 360. doi:10.1093/gji/ggw398. ISSN 0956-540X.

62°N 136°W / 62°N 136°W / 62; -136