Deep Borehole Strainmeter to Measure Earth Strain
Abstract
A highly sensitive multicomponent strainmeter was designed for use in deep boreholes. A shallow-hole version of the deep-hole strainmeter was constructed and tested by operating it in a mine tunnel near the seismically active area around Mina, Nevada. The ability of the strainmeter to record tidal strains of approximately 1 x 10 to the minus 8th power in the horizontal direction and approximately 1 x 10 to the minus 9th power in the vertical direction was demonstrated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1974
- Accession Number
- ADA003710
Entities
People
- L. H. Rorden
- R. L. Kovach
- Stanley W. Smith
- T. C. Moore