| Title | The Influence of Lithology on the Alluvial Character of Oregon Coast Range Streams |
| Publication Type | Thesis |
| Year of Publication | 2018 |
| Authors | Fratkin, Michael Mulugetta |
| Secondary Title | Water Resources Engineering |
| Volume | M.S. |
| Pagination | 74 p. |
| University | Oregon State University |
| City | Corvallis, Or. |
| Call Number | OSU Libraries: Digital Open Access |
| Keywords | Alsea River, Cummins Creek, erosion, geology, Green River (Alsea), hydrology, sediments, streamflow |
| Notes | When a river bed and its banks are made of movable sediment or soil, it is called an alluvial river. This Master’s thesis is concerned with alluvial processes in two watersheds in the Oregon Coast Range. The Cummins Creek watershed is underlain with basalt, while the Green River watershed rests on sedimentary rock. “Using downstream measurements of bankfull geometry and grain size, we found evidence for alluvial processes shaping channels within hillslope coupled OCR [Oregon Coast Range] streams underlain by sandstone and basalt. Contrasts in lithology between the two study basins resulted in different surface and subsurface grain sizes, channel slopes, and potential differences in sediment supply from tributaries and hillslopes. Despite these differences, both systems displayed characteristics typical of alluvial systems along most of their length, such as armored channel beds and strong relationships between shear stress and grain size” (from the Abstract). |
| URL | https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/pv63g5350 |
