Accession Number : AD0739933

Title :   Procedures for Removing Surface Contaminants from Deep Ice Cores.

Descriptive Note : Special rept.,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s) : Ragone,Stephen E. ; Finelli,Roland

Report Date : MAR 1972

Pagination or Media Count : 12

Abstract : The surfaces of the deep ice cores from Greenland and Antarctica were contaminated during drilling at concentration levels several orders of magnitude greater than those found in the uncontaminated ice. Several procedures for removing these contaminants were studied. Ultrasonic vibration followed by self-cleaning in meltwater was found to be the most effective procedure for removal of surface contamination. (Author)

Descriptors :   (*GLACIERS, CONTAMINATION), ULTRASONIC RADIATION, DRILLING, REMOVAL, CLEANING, GREENLAND, ANTARCTIC REGIONS

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE