Norwegian fjords concentrate on Atlantic-facing coasts, achieve bedrock depths exceeding 1,500 m with no direct geochronological evidence for progressive multi-cycle glacial carving, and exhibit orientations that in the case of Sognefjord bear no clear relation to the Caledonian fold structure through which the fjord cuts (Nesje Rosen Bollaert, 2004), confirm that erosion at these velocity scales exceeds engineering predictions. Norwegian fjord groups have distinct orientations, each facing a water body containing a confirmed impact structure — the Barents Sea (Mjølnir, 142 Ma), the North Sea (Silverpit, 43–46 Ma), and the Atlantic (Boston Basin, proposed ~12,800 BP) — with fjord morphology correlating to impact age despite uniform gneissic bedrock across regions. The three partially submerged drumlin fields documented worldwide — Boston Harbor, Clew Bay (Ireland), and Fláajökull (Iceland) — all lie on the North Atlantic propagation path between the proposed impact site and the Norwegian coast. Globally, every major fjord coastline faces an ocean basin with documented Quaternary-age impact history. This paper presents a detailed case study of Western Norway including Møre og Romsdal and call for researchers to evaluate the mechanism at other fjord coastlines worldwide. Additional Resources: A PDF version is available here. Gjøvik, Ashley M. “Identification of a New England Bolide Impact Site: A Geologic Reckoning with the Ground-Zero for the Younger Dryas Impact Event”. The Journal of Decolonized Ecology and Evolution 1, no. 1 (March 21, 2026). https://doi.org/10.5281/zenodo.19146482. Change.org Petition for a Formal Reassessment of the Geology of the Boston Basin (Massachusetts), https://www.change.org/p/petition-for-a-formal-reassessment-of-the-geology-of-the-boston-basin-massachusetts
Ashley Marie Gjøvik (Sun,) studied this question.