Interim map showing shear-wave-velocity characteristics of engineering geologic units in the Salt Lake City, Utah metropolitan area (OFR-424) Media Type:CD and core descriptions and photographs

and core descriptions and photographs from the four UGS Ivie Creek drill holes

The text in the publication contains information containing description of map units

Bedrock near Little Cove includes Mississippian-age sedimentary strata on the eastern limb of the Lake Mountains syncline

Clearly defined state and country boundaries

and promote sustainable outdoor practices

Interim map showing shear-wave-velocity characteristics of engineering geologic units in the Salt Lake City, Utah metropolitan area (OFR-424) Media Type:CD and core descriptions and photographsBy: F. X. Ashland and G. N. McDonald Empirical correlation between earthquake ground motion amplification and the average shear wave velocity in the upper 30 meters below the ground surface (Vs30) provides the basis of the site classes in the International Building Code. This knowledge allows engineers to estimate site class effects. The report notes Vs30 for previously mapped engineering geologic units in the Salt Lake City metropolitan area. We