Accession Number : AD0803185

Title :   LASA OPERATION AND MAINTENANCE.

Descriptive Note : Final rept. 1 Jun 65-31 May 66.

Corporate Author : TELEDYNE INDUSTRIES INC PASADENA CA EARTH SCIENCES DIV

Report Date : 21 JUL 1966

Pagination or Media Count : 149

Abstract : This report covers the operation and maintenance of the Large Aperture Seismic Array (LASA), in the vicinity of Miles City, Montana. The drilling and casing of the boreholes, the installation of instrumentation, and the checkout and final adjustments were accomplished prior to 1 Jun 1965. Commencement of performance under the Operations and Maintenance Contract began with the task of finding a solution to the problems inherent in most newly conceived designs of the size and extent of the LASA.

Descriptors :   (*SEISMOLOGICAL STATIONS, MONTANA), SEISMOMETERS, NETWORKS, UNDERGROUND STRUCTURES, INSTRUMENTATION, MODIFICATION KITS, LIGHTNING, TELEPHONE EQUIPMENT, MAINTENANCE, PHASE SHIFT CIRCUITS, QUALITY CONTROL, DATA PROCESSING, INVERTERS, FAILURE(ELECTRONICS), SEISMIC WAVES, NUCLEAR EXPLOSIONS, DETECTION.

Subject Categories : Seismology
      Seismic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE