152 pages, colour photos
Rum is justly renowned for the ultrabasic cumulate magmas of its Eastern and Western Layered Intrusions of Paleocene age. Less well-known are the equally spectacular sidewall and roof contacts of the magma chamber, together with examples, rare in the geological column, of sequences through the caldera floor of the Rum volcano and the overlying volcano-sedimentary infill (with ignimbrites).
The nine excursions in this A5-sized guide, each colour coded for easy reference, highlight all of the above and also illustrate the complex contacts of the Lewisian and thick Torridonian successions with Paleocene rocks, a feather-edge Triassic succession and Jurassic fault slivers, as well as a plant-bearing Paleocene sequence of lavas and conglomerates that demonstrates very rapid intra-Paleocene unroofing of the Rum Igneous Complex.
'Overall this is a concise and well-written field guide and a must for anyone planning a geological expedition to the "far flung" islands of the Inner Hebrides - using this guide will make such a trip well worth it.' Proceedings of the Geologists' Association ' ... thorough and clearly presented with numerous photographs, maps and illustrations ... images are sharp and well-captioned. ... a must-aehv guide!' Mineral News ' ... thoroughly researched and wonderfully detailed. ... The descriptions are fabulous ... The guidebook is designed to be practical with a water-resistant cover and colour coding of page edges so that a particular excursion can be found quickly... a top quality publication at a very affordable cost, and I recommend it highly.' Journal of the Russell Society
Summary of the Geology of Rum Pre-Paleocene PaleoceneEXCURSIONS:Kinloch and surroundingsThe Northern Marginal Zone (NMZ)Hallival and AskivalThe Central IntrusionThe Canna lava formation in north-west RumMinishal and north-west RumThe Southern Mountains and DibidilKinloch - Allt na Ba - Beinn nan Stac - Lower Glen DibidilLower Glen Dibidil - Nameless and Forgotten Corries - Upper Glen Dibidil - Sandy Corrie - Sgurr nan GilleanLower Glen Dibidil - shoulder of Sgurr nan Gillean - Papadil
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C H Emeleus is at the Department of Earth Sciences at the University of Durham. V R Troll is Professor in Petrology at the University of Uppsala, Sweden