The Dalradian is a geological term describing a series of metamorphic rocks, typically in the high ground lying southeast of the Great Glen of Scotland. It was named after the old Celtic region of Dál Riata (Dalriada) by the geologist, Sir A Geikie, in 1891, and the term now covers a range of metamorphic rocks.
Category: Walking guides
The Caithness area of Scotland is important for its geology, but is also well known for its palaeontology. The Caithness Flagstones are famous for fossil fish and the Helmsdale Fault for the Helmsdale Boulder Beds deposit, beside an active submarine fault scarp. The area even once had its own ‘gold rush’ and you can still try your luck at panning there today at Kildonan.
There are several passions in my life – geology and geomorphology being a couple and hillwalking being another. And it doesn’t take much to see that that these go together rather well. Over the last few years, a number of great leaflets, often laminated, have been produced setting out UK geological walks and these are some more good ones.
Anglesey contains a fascinating variety of rock types and geological structures, best exposed in a magnificent coastline. The bedrockgeology of Anglesey comprises a complex collage of igneous, sedimentary and metamorphic rocks that were formed between 300 and 650 million years ago.
I like the GA guides. They are excellent resources for amateurs and professional geologists alike. I frequently browse mine, planning geological trips I will probably never take, because I live in geological unexciting London. Therefore, imagine how pleased I was to receive a GA guide to the Great Metropolis to review.
Iceland seems to set the hearts of certain geologists racing and, reading this field guide, it is abundantly clear why. Set out in this concise and authoritative book is the evidence of how this strange piece of rock – astride the Mid-Atlantic Ridge – is a “natural laboratory”, where the earth sciences can be watched in dramatic real-time.
This latest publication from the British Geological Survey follows the success of its earlier publication, ‘Exploring the Landscape of Assynt’. It consists of a special pack containing both an explanatory booklet and a new 1 : 25,000 scale geological map of the Charnwood Forest and Mountsorrel area.
Just a couple of days before the Covid-19 lockdown, I was with friends at Tidmoor Point collecting wonderful pyrite ammonites from the Oxford Clay with this excellent guide to the South Dorset Coast. The South Dorset Coast runs from the West Fleet (of Chesil Beach fame) to and including the Isle of Portland.
For a long time, Watchet has been known as a superb location for those interested in both fossils and geology, but, surprisingly, the location has had little in the way of media attention. However, within the last couple of years, this area has begun to attract a lot of interest and this little book will further increase its growing popularity.
This is another guide in the excellent “Landscape and Geology” series of local geological guides published by The Crowood Press. And this is as good as the others. Admittedly, it has a wonderful subject matter, because the Isle of Wight is a geological gem with its 110km long coastline displaying a range of rocks dating from Lower Cretaceous to Oligocene age. I know from personal experience that many of its sands and clays contain collectable fossil bivalves and gastropods, and its famous dinosaur footprints attract attention from both geologists and tourists, with always the possibility of finding a bone or two.
I reviewed the 2nd edition of this guide a while ago and as I said then, iceland seems to set the hearts of certain geologists racing and reading this field guide and that previous incarnation it is abundantly clear why. Iceland’s fascinating geology is clearly set out in this concise and authoritative book. The island, astride the Mid-Atlantic Ridge, is a ‘natural laboratory’ where the earth sciences can be watched in real-time. Rifting of the crust, volcanic eruptions and glacial activity are among a host of processes and features that can be observed in this fascinating land.
Geologists’ Association Guide No 2 Compiled by Frank Moseley The Lake District is obviously a prime UK holiday hotspot and, each year, thousands of people visit to enjoy the walking and scenery. Equally obvious is the fact that these activities are possible as a direct…
This GA guide was first published in 1995 and is a great example of the sort of guide that the association still produces – coverage of small(ish), but important areas, where the geology is both fascinating and important. This one contains general descriptions of the geology and geomorphology of this part of west Wales, with 19 separate itineraries, written by 11 experts in their fields.
Andy Gale’s update of his guide to the Isle of Wight (this is the sixth edition) is an important change to an already excellent geological guide.
I have to admit, I was beginning to wonder where Prof Rory Mortimore’s update of his excellent Chalk of Sussex and Kent was. And now I know. It wasn’t a second edition he was working on, but this magnificent magnum opus in two volumes covering a vastly greater area than that other guide. And the wait was more than worthwhile. The thoroughness, writing quality, content and publication standards are superb.
This is the much anticipated 4th edition of the GA’s Yorkshire Coast guide and it was well worth the wait. From personal experience, I was aware that the previous editions were extremely good for any geologist – professional, academic or amateur – who is attracted by the wonderful scenery and fascinating geology of this part of the UK coastline. However, this new edition is altogether an even better product.
This is an interesting guide for someone like me who lives in the Southeast of England. In fact, I have commuted from London to Brighton by train, which took me through a cross-section of the Weald, which is the subject matter of this guide.
The ‘Bracklesham Beds’ are a series of predominantly soft silty sands and clayey silts laid down in a sub-tropical shallow marine environment around 46Ma. Fossils are readily eroded and can be found loose on the beach along with modern sea shells. The guide has simple maps to direct fossil hunters to the best areas for surface-picking and likely exposures when the beach sand has been removed.
This is another of the GA’s short guides, being only 21 pages long and therefore easy to put in a cagoule pocket. Importantly, the five excursions described in the guide are centred on the city of Plymouth. Therefore, the logistics necessary to visit the itineraries should be relatively easy.
The Crowood Press are really developing a nice little series of books on the landscape and geology of select regions of the British Isles, and Tony Waltham’s addition to the series about the Peak District is well worth a read. This new one follows the same format as the others – beautiful, full colour photos and diagrams, a fascinating chapter on each of the important geological and geomorphological aspects of the area (including buildings and industry), and an author who knows his stuff and can write it down with an easy and authoritative style.
This GA guide is stated to be a “Geology Teaching Trail”. Well, it may be, but when I ambled along the trail with the guide in my hand, I certainly wasn’t in a teaching situation. Rather, I was out for a nice walk and a guide to explain what I was seeing. And it did just that and the classic Silurian/Ordovician unconformity you can see was just that. Classic!
Fossil Hunting along the Jurassic Coast is presented by Dr Colin Dawes, a well-known, fossil hunting guide in the world-famous palaeontological site of Lyme Regis.
West Dorset is rightly famous for its fossils, but few people visit its wonderful, fossiliferous cliffs to look at them as landforms, rather than as an endless source of ammonites and belemnites. This guide does just that and, covers a series of itineraries in the context of landform type.
Shropshire is one of my favourite areas for both geology and fossil collecting. The Silurian of this beautiful area is fascinating and, if you can get permission to get into one of the commercial quarries (and you will need permission), then the results will be remarkable.
This GA guide is intended as a major guidebook to the exposures of highly significant Precambrian, Carboniferous and Permo-Triassic sediments, through to Jurassic rocks of the East Midlands. Personally, it is an area I only partly know (I know Edale in the Peak District quite well) and, for that reason, is an interesting set of locations for me.