TitleThe Delineation of Landslides in the Lincoln County, Oregon Coastal Zone
Publication TypeThesis
Year of Publication1978
AuthorsGentile, John Richard
Academic DepartmentDept. of Geography
DegreeM.S.
Pagination36 p.
UniversityOregon State University
CityCorvallis, Or.
Type of WorkMasters Thesis
Call NumberDigital Open Access
KeywordsAgate Beach, Alsea Bay, Beaver Creek, Beverly Beach, Big Creek, Boiler Bay, Cape Foulweather, Cape Perpetua, coastal hazards, Depoe Bay (Or.), erosion, geography, geology, Jump-Off Joe, landslides, Lincoln City (Or.), Lincoln County (Or.), Lint Slough, Newport (Or.), Otter Rock, paleosciences, physical, Roads End, Seal Rock, Siletz Bay, theses, Waldport (Or.), Yachats (Or.), Yachats River, Yaquina Head
Notes“A study conducted along the Lincoln County, Oregon coast delineated the exact location of 153 landslides. The landslides were found through the interpretation of aerial photographs.” The slides were mapped, analyzed and classified as ancient, historic or recent. “It was found that most landslides occur in conjunction with silt stone materials of Tertiary age. Areas with similar morphology but of sandstone materials are less likely to have landslides. Structurally, landslides occur in areas with steeply dipping Tertiary bedding planes or in areas with steep slopes such as river valleys. A large portion of the landslides in the study area occur at contact zones between Tertiary and Quaternary materials. Most of these slides are ancient, stable slides and are larger than other slides in the study area. The only active ancient landslides in the coastal zone take place in the Nye mudstones near Beverly Beach State Park.” (from the Abstract) Appendices list slides, summarize their characteristics and show them on a map of the county. This is a research paper taking the place of a thesis, “in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE.”
URLhttps://ir.library.oregonstate.edu/concern/graduate_projects/x633f166m