The intrusion and deformation of Tertiary minor sheet intrusions, West Suardal, Isle of Skye, Scotland

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Authors:Nicholson, R.
Author Affiliations:Primary:
Univ. Manchester, Dep. Geol., Manchester, United Kingdom
Volume Title:Geological Journal
Source:Geological Journal, 20(1), p.53-72. Publisher: Wiley & Sons, Chichester-New York, United Kingdom. ISSN: 0072-1050
Publication Date:1985
Note:In English. 25 refs.; illus. incl. geol. sketch maps
Summary:Ordovician carbonate rocks in the core of the arcuate Broadford anticline are strongly deformed with extension of chert seams along the bedding. The deformation extends up into the base of Mesozoic strata and also affects basic to acid sheet intrusions. Two younger classes of Tertiary minor intrusions are post-kinematic; the oldest discordant sheets are folded. Previously reported boudins are sections through finger-like intrusions, their carbonate country rock retaining igneous textures and chilled margins on deformation. This probably occurred on cessation of the main plateau-lava eruption and the start of shield volcanism and major intrusive activity. The deformed rocks may lie above an arcuate diapir formed in an acid magma body subjected to volcanic load. [R.K.H.]
Subjects:Cenozoic; Diapirs; Intrusions; Layered intrusions; Petrology; Tertiary; Europe; Great Britain; Hebrides; Highland region Scotland; Inner Hebrides; Inverness-shire Scotland; Isle of Skye; Scotland; United Kingdom; Western Europe; Evolution; Suardal
Abstract Numbers:86M/2352
Record ID:1989048553
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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