Fact Sheet 2008-3098
Select an option:
New Borehole Geophysical Logging Capabilities in Florida
FISC Hydrologic Investigations Employing Borehole Geophysical Logging Techniques
Hydrogeologic Framework Studies
Aquifer Flow-Zone Characterization
Freshwater-Saltwater Interface Delineation
Figure 1. Temporal change in borehole temperature caused by the migration of a tracer
within a touching-vug flow zone at a depth of 41 feet below land surface in an
observation well (modified from Renken and others, 2008). Tracer injection occurred
at 0930 hours. Fluid temperature log at 1252 hours was not completed because the
top of the logging tool was lodged against the casing bottom.
The borehole geophysical logging program at the U.S. Geological Survey (USGS)-Florida Integrated Science Center (FISC) provides subsurface information needed to resolve geologic, hydrologic, and environmental issues in Florida. The program includes the acquisition, processing, display, interpretation, and archiving of borehole geophysical logs. The borehole geophysical logging program is a critical component of many FISC investigations, including hydrogeologic framework studies, aquifer flow-zone characterization, and freshwater-saltwater interface delineation.
Wacker, M.A., and Cunningham, K.J., 2008, Borehole Geophysical Logging Program: Incorporating New and Existing Techniques in Hydrologic Studies: U.S. Geological Survey Fact Sheet 2008-3098, 4 p.
U.S. Geological Survey
Florida Integrated Science Center
3110 SW 9th Avenue
Ft. Lauderdale, FL 33315
Michael Wacker at email@example.com or
Kevin Cunningham at firstname.lastname@example.org
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