Palynomorph biostratigraphy of Upper Cretaceous to Eocene samples from the Sagavanirktok Formation in its type region, North Slope of Alaska

Abstract

This report discusses the palynomorph (pollen, fungal spore) analysis of 39 outcrop samples from the Sagavanirktok Formation at six localities in its type region on the North Slope of Alaska. 1 The analyses were performed to obtain information mainly about the ages but also about the environments of deposition and provenance of the sediments. Sampling localities and their pollen/fungal spore ages, as determined here, were: Franklin Bluffs (early to middle Eocene), Sagwon Bluffs area (early and late(?) Paleocene), Ivishak River (late Maastrichtian or early Paleocene), Shaviovik anticline area (Paleocene), Kavik River (upper Maastrichtian or early Paleocene), and Toolik River-White Hills (Campanian or Maastrichtian; Paleocene).