Accession Number : ADA322124

Title :   Weight Determination of Stockpiled Ferrochrome Using Microgravity Measurements.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB

Personal Author(s) : Sjostrom, Keith J. ; Berry, Thomas E.

PDF Url : ADA322124

Report Date : DEC 1996

Pagination or Media Count : 41

Abstract : The Defense National Stockpile Center (DNSC) maintains three stockpiles of high carbon ferrochrome at an industrial site in Charleston, SC, and has a requirement to produce current weight estimates for each pile as part of an internal audit Microgravity measurements were performed over each stockpile to provide high-resolution surveys of the gravitational field to determine the average bulk density of the processed ore. Nettleton's and Parasnis methods were used to analyze the gravity anomaly data. These methods have the advantage of averaging the effect of density variations more accurately than can be done from surface or core samples. Volumes of the ore stockpiles were determined using standard land surveying methods. The computed weights of each ferrochrome stockpile are compared to the reported weights provided by DNSC.

Descriptors :   *ORES(METAL SOURCES), *STOCKPILES, DENSITY, MEASUREMENT, INDUSTRIES, DEFENSE SYSTEMS, SITES, HIGH RESOLUTION, ESTIMATES, SURVEYS, INTERNAL, WEIGHT, STANDARDIZATION, WEIGHTLESSNESS, DETERMINATION, LAND AREAS, AUDITING, GRAVITATIONAL FIELDS, GRAVITY ANOMALIES, CORE SAMPLING.

Subject Categories : Administration and Management
      Geology, Geochemistry and Mineralogy

Distribution Statement : APPROVED FOR PUBLIC RELEASE