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Full-Text Articles in Geology
A Comparison Of The November 1990 And November 1995 Floods Along The Main Stem Nooksack River, Whatcom County, Washington, Ryan T. (Ryan Travis) Houser
A Comparison Of The November 1990 And November 1995 Floods Along The Main Stem Nooksack River, Whatcom County, Washington, Ryan T. (Ryan Travis) Houser
WWU Graduate School Collection
During November 1990 two floods on the Nooksack River breached flood control structures near the city of Everson, sending floodwater into the Sumas Overflow. The Sumas Overflow is a low area lying north of the Nooksack River stretching from Everson to the Vedder River in British Columbia, Canada. The 1990 floods resulted in more than $7 million in damage to the Sumas Overflow. The economic impacts of this loss prompted the construction of a levee extension to protect the Everson area from inundation.
Many residents of the Nooksack River floodplain, including Everson Mayor Matt Lagerway, claimed that the levee extension …
Structure, Metamorphism, And Geochronology Along The Southern Margin Of The Breakenridge Orthogneiss, Coast Range, Southern British Columbia, John A. (John Andrew) Feltman
Structure, Metamorphism, And Geochronology Along The Southern Margin Of The Breakenridge Orthogneiss, Coast Range, Southern British Columbia, John A. (John Andrew) Feltman
WWU Graduate School Collection
The Breakenridge orthogneiss is located at the southern end of the Coast Plutonic Complex, in the southwest Canadian Cordillera. It consists of sheeted orthogneiss sills and metamorphosed country rock folded into a tight, upright antiform. The deformational and metamorphic history along the southern margin of this structure is the focus of this study.
The orthogneiss is in original intrusive contact with enveloping metavolcanic rocks of the Jura-Cretaceous Slollicum Schist. A new U-Pb zircon age of 103.8 ± 0.5 Ma, together with a published age of 96 Ma (Parrish and Monger, 1992), establishes an episode of igneous intrusion and crystallization between …