Possible plinian eruptions of Paleocene age in central Yukon: evidence from volcanic ash, Norman Wells area, N.W.T.

• Published in: Canadian Journal of Earth Sciences
• Main Author: Ricketts, B. D.
• Format: Article in Journal/Newspaper
• Language: French
• Published: Canadian Science Publishing 1985
• Subjects: General Earth and Planetary Sciences; Yukon; Northwest Territories; Norman Wells
• Online Access: http://dx.doi.org/10.1139/e85-046; http://www.nrcresearchpress.com/doi/pdf/10.1139/e85-046

Composite tuff units up to 17 m thick are exposed in strata of the Summit Creek Formation, south of Fort Norman, Northwest Territories. The age of the tuffs is bracketed between late Maastrichtian and Early Paleocene based on palynology. The geometry of the tuff beds, their consistently fine grain s...