Seismic velocities of the upper crust of the Southern Uplands

The Southern Uplands of Scotland is a region largely composed of deformed Lower Palaeozoic rocks of Ordovician and Silurian systems. At outcrops, these rocks are mainly alternating shales and greywackes with steep dips and regional NE-SW strike which are intruded in places, by granitic plutons. The...

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Bibliographic Details
Main Author: Adesanya, Olusola
Published: University of Glasgow 1982
Subjects:
551
Online Access:http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236661
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Summary:The Southern Uplands of Scotland is a region largely composed of deformed Lower Palaeozoic rocks of Ordovician and Silurian systems. At outcrops, these rocks are mainly alternating shales and greywackes with steep dips and regional NE-SW strike which are intruded in places, by granitic plutons. The Southern Uplands Fault (SUF) which forms the northern boundary of the region is said to coincide with the sUbduction zone where a southerly oceanic plate was being consumed under a continent. Tectonic contrasts north and south of the SUF have been a subject of intensive geological and geophysical studies for the past decade. Field seismic refraction experiments, in particular, have shed some light about the velocity distribution in the crust of the Southern Uplands.