MOIST and the continuity of crustal reflector geometry along the Caledonian-Appalachian orogen

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doi: 10.1144/gsjgs.141.1.0105
Authors:Brewer, J. A.; Smythe, D. K.
Author Affiliations:Primary:
Univ. Cambridge, Bullard Lab., Cambridge, United Kingdom
Inst. Geol. Sci., Edinburgh, United Kingdom
Volume Title:Journal of the Geological Society of London
Source:Journal of the Geological Society of London, 141(1), p.105-120. Publisher: Geological Society of London, London, United Kingdom. ISSN: 0016-7649
Publication Date:1984
Note:In English. 42 refs.; illus. incl. sects., geol. sketch maps
Summary:The Moine and Outer Isles deep seismic reflection traverse (MOIST) has revealed that the Caledonian foreland is underlain by an easterly-dipping, strongly reflecting surface cutting through the Moho and traceable to >45 km depth. Thrusts within the foreland basement and Caledonian orogen have been reactivated as normal faults bounding half-grabens filled with sediments of Late Palaeozoic-Mesozoic age. The easterly-dipping reflections are interpreted as being from relatively high-conductivity, off-shelf metasedimentary rocks imbricated against the edge of the Lewisian basement. [R.A.H.]
Subjects:Caledonian Orogeny; COCORP; Crust; Faults; Geophysical methods; Geophysical surveys; Metamorphic rocks; Metasedimentary rocks; Mohorovicic discontinuity; Normal faults; Orogeny; Paleozoic; Reactivation; Reflection methods; Seismic methods; Surveys; Tectonophysics; Thrust faults; Velocity structure; Appalachians; Caledonides; Europe; Great Britain; North America; Scotland; United Kingdom; Western Europe; Evolution; MOIST
Abstract Numbers:84M/3585
Record ID:1985070120
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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