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

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...

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Bibliographic Details
Main Author: Weertman,Johannes
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1973
Subjects:
Snow
Ice and Permafrost
(*ICE
DRILLING)
(*ANTARCTIC REGIONS
ICE)
TEMPERATURE
CREEP
STRENGTH(PHYSIOLOGY)
PRESSURE
COMPRESSIVE PROPERTIES
DEFORMATION
MATHEMATICAL PREDICTION
THERMAL CONDUCTIVITY
BOREHOLES
ROSS ICE SHELF
Antarctic
Ross Ice Shelf
Antarc*
Antarctica
Ice
Ice Shelf
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0766302
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0766302
Description
Summary: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.

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