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The Mineralogy and Strength Characteristics of Selected Glaciolacustrine Clays in the Puget Sound Region
(2015-03)
The combination of rainy climate, glaciolacustrine clays, and steep topography of the Puget Lowland creates slope stability issues for the regional population. Several glaciolacustrine deposits of laminated silt and clay of different ages contribute to the likelihood of slope failure. The glaciolacustrine deposits are generally ...
Determining Spatial Distribution and Physical Properties of the Vashon Advance Outwash near Mountlake Terrace, Washington
(2015-06)
This study is aimed at determining the spatial distribution, physical properties, and groundwater conditions of the Vashon advance outwash (Qva) in the Mountlake Terrace, WA area. The Qva is correlative with the Esperance Sand, as defined at its type section; however, local variations in the Qva are not well-characterized ...
A study of reactive silica dissolution for determining potential alkali silica reactivity in concrete
(2016-12)
Alkali silica reaction (ASR) has been recently identified as an issue relating to problematic performance characteristics of aggregates sourced in western Washington State. An abundance of literature on ASR attributes minerals and rocks containing amorphous silica as initiating the chemical and physical mechanisms that damages ...
Assessment, Restoration, and Management of the North Puyallup Trail, Mount Rainier National Park
(2016-12)
The N Puyallup Trail, on Klapatche Ridge in Mount Rainier National Park, was originally the end of the Westside Road. The N Puyallup Trail has developed issues of surface erosion and landsliding since the area east of Klapatche Point was converted to wilderness area in 1988 (Owens, 2006). The wilderness designation limits the ...
Surficial Geology of the Newly Annexed Area of Kirkland, Washington King County, USA
(2017-06)
The 2014 Oso landslide brought nationwide attention to the geologic hazards of Washington State, impelling City of Kirkland officials to create a new geologic map of recently annexed areas and update prior 2010 geologic map products to protect the community. Geologic hazards within the City include but are not limited to ...
Factors Influencing Morphology of Four Jointed Basalt Scarps in Southwest Iceland
(2018-03)
This study focuses on detailed description and comparison of morphology and traits of fault scarps in jointed basaltic bedrock in Iceland. I predict that intact rock quality has a greater impact on scarp morphology than internal structure of stacked lava flows. I use geomorphic Rock Mass Rating (RMR) as a proxy for rock ...
Investigation of a Pre-Vashon Interglacial Fine-Grained Organic-Rich Sedimentary Deposit, South Lake Union, Seattle, Washington
(2017-06)
his study evaluates a fine-grained interglacial deposit found in the subsurface of the South Lake Union (SLU) area, Seattle, Washington. The nearly one-square-km SLU study area is defined as north of Denny Way, south of Aloha Street, east of Aurora Avenue, and west of Interstate 5. The evaluation required an in-depth study ...
Observations of Joints Present in the Lawton Clay Member of the Vashon Stade, Exposed at a Coastal Bluff in Discovery Park, Seattle, Washington
(2016-06)
The southwest-facing coastal bluff present at Discovery Park, Seattle, Washington,
displays distinctive joints throughout the exposed Lawton Clay Member.
Exhibiting a characteristic local stratigraphy of permeable advance outwash over the
impermeable proglacial lacustrine clay, this bluff is located in an area of Seattle ...
Rockfall Reconnaissance and Stability Assessment: Frenchman Coulee, WA
(2019-03)
The Sunshine Wall, a 30-meter tall outcrop of Columbia River Flood Basalt, is a popular climbing wall within Frenchman Coulee, located in central Washington. This study investigates the stability of the columnar basalt that makes up the wall, to educate climbers on how this slope fails and provide qualitative estimates of how ...
Predicting the Position of Fault Strands through Borehole Correlation of the Top of Tertiary Bedrock in the Seattle Fault Zone, Seattle, Washington
(2019-12)
Only a few strands of the Seattle Fault Zone have been identified on land in Seattle, Washington due to heavy manipulation of the landscape by repeat glaciations, geomorphic reworking, and the interference of the growing metropolitan community concealing potentially dangerous active faults below the surface.
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