IGB

Connexion

(Article of periodic en Anglais - 1982)

Document title

Differential glacio-isostatic uplift of crustal blocks at Glen Roy, Scotland

Authors(s) and Affiliation(s)

SISSONS J. B. ; CORNISH R. ;

Abstract

Detailed measurements of the altitudes of the shorelines of former ice-dammed lakes in Glen Roy and vicinity in the Scottish Highlands prove erroneous the conventional view that former shorelines in areas affected by glacio-isostatic uplift are uniformly tilted and/or gently warped. The measurements demonstrate differential uplift of blocks of the earth's crust. The surfaces of some blocks have no detectable tilt whereas others have gradients up to at least 4,6 m/km and are tilted in different directions. In three areas 0.72.0 km long, shorelines are distorted by crustal movements| all these areas have landslides attributed to earthquakes that accompanied the release of stress. A relationship between crustal movement and the limit of a glacial advance is demonstrated.

Source

Article of periodic

published at : Quaternary research New York

Editor :

Millesime : 1982, vol. 18, no3 [pp. 268-288]

Bibliographic references : 37 réf.

Language

Anglais

Refdoc record number (ud4) : 12455766 : Permanent link - XML version
Powered by Pxxo