The Old Red Sandstone of the Orkneys
It will be seen that in the Orkneys we have one of the most abundant and interest? ing series of the camptonite-monchiquite-alnoite rocks which is anywhere known to exist. They fall naturally into two groups, the " leucocrate " rocks of Brogger, of which the sole representative is one dyke...
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University of Edinburgh
1900
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| Online Access: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.734975 |