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GEOREF RECORD

The Highland Border Ophiolite of Scotland; observations from the Highland workshop field excursion of April 2008

W. G. Henderson, P. W. G. Tanner and R. A. Strachan
The Highland Border Ophiolite of Scotland; observations from the Highland workshop field excursion of April 2008
Scottish Journal of Geology (February 2009) 45, Part 1: 13-18

Abstract

In April 2008, 23 attendees of the Highland Workshop visited critical localities of the Scottish Highland Border Complex between Aberfoyle and the Isle of Bute. Widespread existence of fragmental ophicarbonates was confirmed, with the possibility that at least some may have formed as fault gouges in an ocean-continent transition environment similar to those reported from serpentinites in Ligurian-type extensional continent-ocean margins. The consensus view was that amphibolites at Loch Ard and on Bute appear to have been at no higher metamorphic grade than epidote-amphibolite facies. Also that, narrow zones of "granitoid rocks" and spotting in Dalradian rocks in contact with ophicarbonate rocks could represent relatively low Barrovian regional metamorphic temperature effects rather than evidence for contact metamorphism in the sole of an obducted ophiolite. Finally, the Highland Border Ophiolite appears to have originally overlain the Southern Highland and Trossachs groups and was rotated with them by the D4 Downbend Antiform. No evidence was seen at these localities to support the hypothesis that the Highland Border Complex youngs to the NW or did not undergo Grampian deformational events.


ISSN: 0036-9276
EISSN: 2041-4951
Coden: SJGEAX
Serial Title: Scottish Journal of Geology
Serial Volume: 45, Part 1
Title: The Highland Border Ophiolite of Scotland; observations from the Highland workshop field excursion of April 2008
Affiliation: Leschangie, Kemnay, United Kingdom
Pages: 13-18
Published: 200902
Text Language: English
Publisher: Scottish Academic Press, Edinburgh, United Kingdom
References: 25
Accession Number: 2009-099550
Categories: Igneous and metamorphic petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: geol. sketch maps
N55°52'60" - N55°52'60", W04°15'00" - W04°15'00"
Secondary Affiliation: University of Glasgow, GBR, United KingdomUniversity of Portsmouth, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 200953
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