Late Proterozoic rift faults and basement-cover relationships within the Ben More thrust sheet, NW Scotland

Saved in:
Online Access: Get full text
doi: 10.1144/gsjgs.154.5.0761
Authors:Butler, R. W. H.
Author Affiliations:Primary:
University of Leeds, Department of Earth Sciences, Leeds, United Kingdom
Volume Title:Journal of the Geological Society of London
Source:Journal of the Geological Society of London, Vol.154 (Part 5), p.761-764. Publisher: Geological Society of London, London, United Kingdom. ISSN: 0016-7649
Publication Date:1997
Note:In English. 14 refs.; sects., sketch maps
Summary:Recently proposed models for the tectonic evolution of N Scotland are discussed involving lithospheric extension during the late Precambrian, supported by new discoveries and interpretations of early normal faults within the Moine thrust belt. Such structures control the preservation of Torridonian sediments beneath the sub-Cambrian unconformity. The Ben More thrust ramp from basement into the Cambrian cover may have been controlled by the early faults. Major synclines within the Ben More thrust sheet appear as tightened half-grabens and thus are composite structures; this may require a re-examination of the field relationship between these folds and the apparently syn-tectonic Loch Ailsh alkaline intrusions that have been used to date thrust activity. [R.A.H.]
Subjects:Basement tectonics; Extension tectonics; Faults; Folds; Half grabens; Intrusions; Neoproterozoic; Normal faults; Precambrian; Proterozoic; Revision; Rift zones; Synclines; Syntectonic processes; Tectonics; Thrust sheets; Torridonian; Upper Precambrian; Vendian; Assynt; Caledonides; Europe; Great Britain; Highland region Scotland; Moine thrust zone; Scotland; Sutherland Scotland; United Kingdom; Western Europe; Ben More thrust sheet; Northwestern Scotland
Abstract Numbers:98M/779
Record ID:1997069236
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
Tags: Add Tag
No Tags, Be the first to tag this record!
Be the first to leave a comment!
You must be logged in first