Accession Number : AD0766302

Title :   Anticipated Closure Rates for a Proposed Drill Role, Ross Ice Shelf, Antarctica.

Descriptive Note : Special rept.,

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

Personal Author(s) : Weertman,Johannes

Report Date : JUL 1973

Pagination or Media Count : 12

Abstract : Closure rates are calculated for the proposed drill hole through the Ross Ice Shelf at 166 degrees W, 82 degrees 30 minutes S. Closure rates are calculated using the best experimental data on power law creep of polycrystalline ice. Without pressurization of the drill hole closure rates greater than 0.1 per day are estimated to occur at the bottom of the drill hole.

Descriptors :   (*ICE, DRILLING), (*ANTARCTIC REGIONS, ICE), TEMPERATURE, CREEP, STRENGTH(PHYSIOLOGY), PRESSURE, COMPRESSIVE PROPERTIES, DEFORMATION, MATHEMATICAL PREDICTION, THERMAL CONDUCTIVITY

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE