Characteristics of Fractures in Crystalline Bedrock Determined by Surface and Borehole Geophysical Surveys, Eastern Surplus Superfund Site, Meddybemps, Maine

U.S. Geological Survey, Water-Resources Investigations Report 99-4050

by Bruce P. Hansen, Janet Radway Stone, and John W. Lane, Jr.

Table of Contents



Description of Study Area


Geophysical-Survey Methods

Azimuthal Square-Array Resistivity

Acoustic Televiewer

Borehole Video

Single-Hole Directional Radar

Fracture Orientation and Relative Distribution Determined by Geophysical Methods

Azimuthal Square-Array Resistivity

Acoustic Televiewer

Single-Hole Directional Radar

Integrated Fracture Orientation

Correction of Fracture Density

Water-Yielding Fractures

Orientation and Distribution

Hydraulic Characteristics

Summary and Conclusions






U.S. Department of the Interior, U.S. Geological Survey
Persistent URL:
Page Contact Information: Contact USGS
Last modified: Wednesday, December 07 2016, 01:18:24 PM
FirstGov button  Take Pride in America button