Date of Award
2008
Document Type
Thesis
Publication Status
Version of Record
Submission Date
October 2026
Thesis/Dissertation Advisor [Chair]
Oleinik, Anton E.
Abstract
Tugidak Island, the northenunost of the Trinity Islands off the S W coast of Kodiak Island is the stratotype of the Tugidak Formation. The continuous section ofthe Tugidak Formation crops out in the sea cliffs along the northern and southwestern parts of the island and is the most complete section in the Trinity Islands. The exposed section of the Tugidak Formation is composed of 1395 m of glacial marine diamictite containing abundant molluscan fossils. Seismic profiles and well data indicate a regionally extensive deposition of the Tugidak Formation across the Kodiak Shelf. Paleomagnetic sampling and diatom analysis in this work has further refined the age of the Tugidak Formation as early-middle Pleistocene. By attempting a reconstruction of the tectonic evolution and through faunal identification, inferences are made about the paleobiogeography, paleoclimate and timing of sedimentary depositional cycles, around Tugidak Island.
Extent
157 p.
Recommended Citation
Porath, Dennis A., "Stratigraphy, Paleontology, and Paleogeography of the Middle Pleistocene Tugidak Formation, Trinity Island, Alsaka" (2008). Electronic Theses and Dissertations 2000 - 2009. 1565.
https://digitalcommons.fau.edu/etd_general_5/1565
Identifier
FA00000810
Comments
Charles E. Schmidt College of Science|Thesis (M.S.)--Florida Atlantic University, 2008.|Charles E. Schmidt College of Science