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Stratigraphy, Paleoflora, and Tectonic Setting of the Paleogene Sheep Creek Volcanic Field, Central Alaska

Professional Paper 1814-G
Studies by the U.S. Geological Survey in Alaska, Volume 15
By: , , and 
https://doi.org/10.3133/pp1814G

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Abstract

In this paper, we provide new information on the stratigraphy and paleoflora of the Sheep Creek volcanic field in the Alaska Range that bolsters our understanding of a key interval in the tectonic, paleoclimate, and paleoenvironmental history of the northern Cordillera. Although the distribution and basic stratigraphy of these rocks have been previously reported, here we document the stratigraphic context of recently dated igneous rocks and paleosols ranging from the Paleocene–Eocene boundary to the early middle Eocene, describe a more complete fossil leaf flora from the succession, and place the Sheep Creek volcanic field in its regional tectonic context of ridge subduction and slab window migration in central Alaska.

Suggested Citation

White, T., Sunderlin, D., and Bradley, D., 2024, Stratigraphy, paleoflora, and tectonic setting of the Paleogene Sheep Creek volcanic field, central Alaska, in Dumoulin, J.A., ed., Studies by the U.S. Geological Survey in Alaska, vol. 15: U.S. Geological Survey Professional Paper 1814–G, 14 p., https://doi.org/10.3133/pp1814G.

ISSN: 2330-7102 (online)

Study Area

Table of Contents

  • Abstract
  • Introduction
  • Regional Geologic Framework
  • Sheep Creek Volcanic Field
  • Paleobotany
  • Discussion—Implications for Tectonics, Regional Geology, Paleoclimate, and Paleobotany
  • Acknowledgements
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title Stratigraphy, paleoflora, and tectonic setting of the Paleogene Sheep Creek volcanic field, central Alaska
Series title Professional Paper
Series number 1814
Chapter G
DOI 10.3133/pp1814G
Year Published 2024
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Alaska Science Center
Description iv, 14 p.
Country United States
State Alaska
Online Only (Y/N) Y
Google Analytic Metrics Metrics page
Additional publication details