Thickness of unconsolidated deposits in the Puget Sound lowland, Washington and British Columbia
Water-Resources Investigations Report
94-4133
By: M. A. Jones
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Abstract
The Puget-Willamette Lowland is located in western Washington, western Oregon, and a small part of southwestern British Columbia, Canada. The Puget-Willamette Lowland study area is composed of two distinct subareas, the Puget Sound Lowland and the Willamette Lowland. This report presents the results of mapping the thickness of the unconsolidated deposits in the Puget Sound Lowland. The thickness of the unconsolidated deposits ranges from a discontinuous veneer in areas of bedrock outcrop to more than 3,600 feet. Available information shows that the unconsolidated deposits are thickest in the Fraser-Whatcom, Everett, Seattle, and Tacoma Basins. The mapped thickness of the unconsolidated deposits in the Tacoma Basin is probably underestimated because of the scarcity of wells penetrating the full thickness of the unconsolidated deposits and the lack of sufficient marine-seismic data.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Thickness of unconsolidated deposits in the Puget Sound lowland, Washington and British Columbia |
| Series title | Water-Resources Investigations Report |
| Series number | 94-4133 |
| DOI | 10.3133/wri944133 |
| Year Published | 1996 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | 1 Plate: 40.00 × 30.78 inches |
| Country | Canada, United States |
| State | British Columbia, Washington |
| Other Geospatial | Puget Sound lowland |
| Scale | 450000 |
| Google Analytic Metrics | Metrics page |