Abstract

Variations in structural fabric adjacent to part of the Lubec–Belleisle fault are interpreted in terms of a single protracted heterogeneous strain. Zones of shallow and intermediate pitch of lineation in steep to vertical surfaces occur between a region of steeply pitching lineations and a region of unstrained rock. Finite strain in the zone of steeply pitching lineations is greater than in the intermediate or shallow pitching zones. The variation in magnitude and orientation of the finite strains is probably due to a buttressing effect of adjacent unstrained granitic rocks.The fabric zones formed in Middle Devonian times, and predate brittle movement of the Lubec–Belleisle fault. Since the zones do not display appreciable horizontal displacement, the possibility of major strike-slip movements along this fault must be ruled out.

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