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Map showing depth to bedrock in the Seattle 30' by 60' Quadrangle, Washington

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Map showing depth to bedrock in the Seattle 30' by 60' Quadrangle, Washington; 1985; MF; 1692; Yount, J. C.; Dembroff, G. R.; Barats, G. M.

Summary

Maps depicting thicknesses of sedimentary units (isopach maps) are standard tools for interpretation of processes and patterns of sedimentation within basins (Potter and Pettijohn, 1977, p. 283-287). Isopach maps showing the thickness of unconsolidated sedimentary deposits overlying bedrock may help locate sources of aggregate and potential ground-water aquifers. These maps also aid in the prediction of ground response resulting from earthquakes (Hays, 1980). In the Puget Lowland this latter use is of particular importance. Strong ground motions were highly variable throughout the Puget Sound area during the 1965 Seattle earthquake (Ms = 6.5); complex topography of the bedrock surface plus thick sections of young unconsolidated and [...]

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Type Scheme Key
local-index unknown mf1692
local-pk unknown 61287
series unknown Miscellaneous Field Studies Map

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journalMiscellaneous Field Studies Map
parts
typePublication Place
valueReston, VA
languageEnglish
citationTypeReport

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