Basement-cover relationships and structure within the Moine rocks of central and Southeast Sutherland

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doi: 10.1144/gsjgs.145.1.0023
Authors:Strachan, R. A.; Holdsworth, R. E.
Author Affiliations:Primary:
Oxford Polytech., Dep. Geol., Oxford, United Kingdom
Volume Title:Journal of the Geological Society of London
Source:Journal of the Geological Society of London, 145(1), p.23-36. Publisher: Geological Society of London, London, United Kingdom. ISSN: 0016-7649
Publication Date:1988
Note:In English. 51 refs.; illus. incl. sect., geol. maps
Summary:Inliers of Archaean to early Proterozoic Lewisian basement crop out in this area. Both the basement and the Moine cover have been affected by two major tectonic events, the first of which occurred during the late Proterozoic and involved minor folding and upper-amphibolite facies metamorphism. Intense deformation obliterated the unconformable relationship between the Lewisian and Moine rocks and imposed a planar banding on the basement lithologies. Subsequent reworking during the Caledonian orogeny resulted in ductile thrusting and folding, associated with a low- to mid-amphibolite facies metamorphism. The Lewisian inliers in the area occur: 1) as allochthonous sheets resting on major Caledonian ductile thrusts and 2) in the cores of NW-verging curvilinear sheath folds of Caledonian age. [R.E.S.]
Subjects:Absolute age; Alkali metals; Alkaline earth metals; Argon; Basement; Caledonian Orogeny; Crystalline rocks; Dates; K/Ar; Lewisian; Metals; Moinian; Neoproterozoic; Noble gases; Paleozoic; Potassium; Precambrian; Proterozoic; Rb/Sr; Rubidium; Sedimentary cover; Strontium; Structural geology; Tectonics; Upper Precambrian; Europe; Great Britain; Highland region Scotland; Scotland; Sutherland Scotland; United Kingdom; Western Europe; Northwestern Scotland
Coordinates:N160000 N360000 E0690000 E0520000
Abstract Numbers:88M/4704
Record ID:1988020493
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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