Black, G. P.  <br/><br/>
The Torridonian Succession of the Isle of Rhum 

 - 265-276pp.  Illustration 
<br/><br/> Abstract<br/>The Torridonian rocks of Rhum are divided into five sub-divisions on lithological grounds and the succession is found to be closely comparable with that of Skye. On the basis of the comparison, four sub-divisions, totalling 8,500 feet in thickness, are allocated to the Diabaig Group while the 6,000 feet of strata belonging to the fifth and highest sub-division are allocated to the Applecross Group. The sediments of the Diabaig Group are now seen to form a great wedge thickening and coarsening consistently from Gairloch south-south-westwards to Rhum; a phenomenon obscured by the previously held correlation of the Rhum Torridonian with that of Skye and the Mainland. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Highland region Scotland<br/>Proterozoic<br/>historical geology - Great Britain