Deposits Earth Science Archive
An acclaimed international collection of articles and book reviews on fossils, geology, minerals, palaeontology and earth science
Jens Lehmann (Germany) Plate tectonics drove the continent-continent collision of Euramerica and Gondwana, roughly 280 to 380mya. This mountain-building phase of the late Palaeozoic era is referred to as the Variscan Orogeny and eventually formed the supercontinent Pangaea. This was largely complete by the end of the Carboniferous and many … Read More
John P Green (UK) The Ampthill Clay Formation of the UK, of Late Jurassic (Oxfordian) age, represents a series of highly fossiliferous marine mudstones that form part of the Ancholme Clay Group in North Lincolnshire (Gaunt et al, 1992); but are almost unexposed in the county other than at an … Read More
John P Green (UK) The large, disused quarry at North Ormsby [O.S. grid ref. TF2893], north of Louth in Lincolnshire, displays an important sequence of beds of the Burnham Chalk Formation (Upper Cretaceous, Upper Turonian stage) and, at present, constitutes the best exposure of the beds in the county. Similar … Read More
I don’t normally review BGS memoirs – they are excellent publications, but largely written for the professional or the seriously committed amateur geologist. (I have to admit to owning several, which cover my favourite fossil collecting areas of the UK.) However, this is one ‘Special Memoir’ that I am quite willing to make an exception for.
John P Green (UK) The Early Cretaceous succession in Lincolnshire consists of a series of shallow water marine sandstones, ironstones, clays and limestones, not unlike those deposited elsewhere in the UK during early Jurassic times. In the north of the county, at Nettleton Hill, near the village of Nettleton, minor … Read More
Dr Trevor Watts (UK) In the first part of this article, I discussed the Middle Jurassic environment in the region of Whitby, on the northeast coast of England at the time when dinosaurs roamed there. In Part 2 (see The dinosaur footprints of Whitby (Part 2): Problems matching footprints to … Read More
Dr Trevor Watts (UK) In my previous articles in the series, I looked at the environments that allowed dinosaurs to flourish in the Whitby area during the Middle Jurassic and to leave their footprints. Then I considered the factors and problems in trying to match the footprints to particular species … Read More
Dr Trevor Watts (UK) In the first part of this article (The dinosaur footprints of Whitby (Part 1): Introduction), I considered the immediate surroundings of Whitby as a seemingly unlikely place to find many dinosaur footprints; and I looked at the environments that existed here in mid-Jurassic times; and finally … Read More
Dr Trevor Watts (UK) Introduction I recall reading a sentence in a book some time ago that went something like, ‘Occasionally a dinosaur footprint may be found along the coast.’ In fact, dinosaur footprints are superabundant along the Yorkshire Coast. On a day’s visit to any of 15 or 20 … Read More
The Jurassic Coast Trust is certainly producing some good books these days. I have alraedy reviewed one (The Jurassic Coast: An Aerial Journey through time by Peter Sills) and I think these two might even be better. As is well known, in recognition of its wonderful geology, the coast between Orcombe Rocks in southeast Devon and Old Harry Rocks in south Dorset was granted World Heritage status in December 2001.
Mark Wilkinson (UK) Scotland has a number of sites of historical interest to geologists. I described one of these, Hutton’s Unconformity at Siccar Point near Edinburgh (see Hutton’s unconformity and the birth of ‘Deep Time’). James Hutton described several Scottish unconformities in his book of 1795 and, while the one … Read More
This is an odd little book. Produced by the Craven & Pendle Geological Society and edited by Paul Kabrna, it sets out to cover the geology of Craven Lowlands through a series of chapters written by different contributors.
Jens Lehmann (Germany) Plagiostoma – a record of about 200 million years Are there any boring fossils out there in the ground? I do not think so and to demonstrate this, an “ordinary” fossil find is focussed on here. We are talking about “just” a mussel, but one that belongs … Read More
Jon Trevelyan (UK) 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 … Read More
The long awaited PalAss guide to Wealden fossil flora and fauna has finally arrived and what a magnificent tome it is. At 769 pages and 35 chapters, it is by far the most ambitious and complete of their guides, covering various vertebrate groups, together with invertebrates, plants and stratigraphical descriptions of what can be found on the coast and in the quarries of southern England and the Isle of Wight.
Martin Simpson (UK) Newly unearthed documentary evidence substantiates the classic story that Mary Ann Mantell found some worn down Iguanodon teeth in Cuckfield, Sussex, before 1822 in some rocks by the roadside, while her husband Gideon was elsewhere. She was accompanied by a friend and purchased the specimens from a … Read More
Rory Mortimore (UK) Flint in the Late Cretaceous Chalk: links across the European platform In a recent issue of this journal Paul Taylor wrote “We are very fortunate in Britain to host one of the most remarkable deposits in the entire geological record, the Chalk” (Deposits Issue 55, 2018, p.35, … Read More
I have stood several times in front of an (apparently) plain white, chalk cliff-face along with others, while Prof Mortimore discussed the implications of what we were seeing. And, every time, I left not just thinking but knowing this was the most fascinating piece of geology I had ever seen.
Jan Willem van der Drift (The Netherlands) Historic finds In 1900, nobody knew what kind of tools man used before the handaxe. Some scholars assumed that early-man used ‘eoliths’ – handy natural forms. That theory turned out to be false. The earliest tools were manmade flakes and cores, and this … Read More
Dr Neale Monks (UK) The Gault Clay is an Albian (Lower Cretaceous) deposit of blue-grey clay exposed primarily in Southeast England. At the classic exposure at Copt Point, Folkestone, the Gault Clay is sandwiched between the Lower Greensand underneath and the Upper Greensand on top. It is a stiff clay … Read More
Neale Monks (UK) Alongside trilobites, ammonites are by far the most popular invertebrate fossils. Whether you’re an enthusiastic fieldworker or more of an armchair geologist, chances are that your collection includes a fair number of ammonites of one sort or another. These may well have names and localities, but details … Read More
There are many good guides the geology of the Lake District and this is no exception. However, this is first and foremost an illustrated guide to the region’s rocks and an introduction to the common rock types to be found, largely through the use of colour photographs.
Paul Cox (UK) The year was 1991, we were on holiday in Dorset and we had gone to the beach for the day. The children were engrossed in a game of make believe, my wife was reading a book and I, as I often do, had started to walk down … Read More
Bob Williams (UK) These days, there is little doubt that amateurs can influence science. This is commonly encountered in astronomy, with the regular discovery of comets and asteroids by amateurs. On the other hand, with some noteworthy exceptions, it is not such a frequent occurrence in the science of palaeontology. … Read More
Biddy Jarzembowski, Neil Watson and Ed Jarzembowski (UK) This is the third part of the mini-series in which selected Early Cretaceous insects from the Wealden of Southern England are restored in colour for the first time. The aim is to give a visual idea of the variety of British insect … Read More
Biddy Jarzembowski, Neil Watson and Ed Jarzembowski (UK) This collection of illustrations, the second in the series, continues with seven more watercolour insects from the Wealden. Further reading English Wealden fossils, Palaeontological Association Field Guide to Fossils No 14, edited by David J Batten, The Palaeontological Association, London (2011), 769 … Read More
Biddy Jarzembowski, Neil Watson and Ed Jarzembowski (UK) Fossil arthropods carry their skeletons on the outsides of their bodies. These exoskeletons may not only be preserved in the fossil record, but also the colour patterns that once adorned them. Therefore, the reconstruction and restoration of the appearance of fossil insects … Read More
Stephen K Donovan (The Netherlands) The Mississippian (Lower Carboniferous) is often referred to as the ‘Age of Crinoids’. Historically, the best collecting area for fossil crinoids in the Carboniferous Limestone of the British Isles has been Clitheroe, in Lancashire. The late Stanley Westhead, who lived in Clitheroe, rightly claimed that: … Read More
Alan R Lord (Germany) Palaeontological Association Field Guide to Fossils: Number 15 As the editor of this new publication by the Palaeontological Association (see Palaeontological Association Field Guide to Fossils Number 15: Fossils from the Lias of the Yorkshire Coast), I think that it may be time to explain why … Read More
Matt Salusbury and Tim-Holt Wilson (UK) “The Wonder of Our Times: Being the True and Exactly Relation of the Body of a Mighty giant dig’d up at Brockford Bridge neer Ipswich in the county of Suffolk.” That’s the title of a printed pamphlet from 1651, now in the Thomason Collection … Read More
