Title | Cementation and Groundwater Chemistry in Pleistocene Paleodune Deposits of the Central Oregon Coast |
Publication Type | Thesis |
Year of Publication | 2023 |
Authors | Stephens, Adrienne Lynn |
Academic Department | Dept. of Geology |
Degree | M.S. |
Pagination | 118 p. |
University | Portland State University |
City | Portland, Or. |
Type of Work | Masters Thesis |
Call Number | OSU Libraries: Digital Open Access |
Keywords | Agate Beach, Alsea Bay, Beaver Creek, Beverly Beach, chemistry, coastal hazards, Driftwood Beach, erosion, geology, Johnson Creek Landslide, landslides, Ona Beach, paleosciences, Seal Rock, sediments, Yaquina Bay |
Notes | Anyone who has driven along the Oregon coast has seen roadside deposits of light-colored rock close to the soil surface that looks like sand. These are actually ancient sand dunes. Pleistocene paleodunes have some cementation, but often display slope instability. “Weakening of cementing agents via changes to groundwater conditions due to altered vegetation, climate change, or contamination, for example, could promote slope instability, threatening lives and infrastructure. This study aims to investigate the variability in the type and degree of cementation and to determine how they are affected by changes in groundwater conditions” (from the Abstract). This interesting study addresses the Newport dune sheet, extending from Johnson Creek in the north to Yachats in the south. PSU Dissertations and Theses. Paper 6309. |
URL | https://archives.pdx.edu/ds/psu/39676 |
DOI | 10.15760/etd.8163 |