IGB

Connexion

(Article of periodic en Anglais - 1982)

Document title

Bore-hole video and photographic cameras

Authors(s) and Affiliation(s)

KOERNER R. M. ; FISHER D. A. ; PARNANDI M. ;

Abstract

35 mm still and television techniques are shown to be of great value in following changes at the bedrock/ice interface and along borehole walls during closure over one or more years in polar or subpolar ice-caps. No evidence has been found of basal slip over a one year period in a 137 m holed at the top of the flow line on an ice-cap in northern Ellesmere Island. However, the bore hole has deformed to an elliptical cross-section near the bed and some pronounced extrusion-like layers have developed within 3 m of the bed in dirty ice in the year since drilling.

Source

Article of periodic

published at : Annals of Glaciology Cambridge

Editor :

Millesime : 1982, vol. 2 [pp. 34-38]

Bibliographic references : 4 réf.

Language

Anglais

Refdoc record number (ud4) : 12450619 : Permanent link - XML version
Powered by Pxxo