Construction of the Brihadeeswarar Temple (also spelt Brihadisvara or Brihadeshwara), which is in Thanjavur in the state of Tamil Nadu, India, began in 1003 AD by Rajaraja I and was completed in 1010 AD. It […]
Deposits Magazine
Fossils, Geology & Minerals. Deposits is a highly acclaimed international printed and digital magazine with regular online content
Wealden insects: an artist’s update (Part IV)
An ‘artist’s impression’ of Wealden insects, inspired by the original work of Neil Watson, appeared in a three-part mini-series in Deposits issues 47 to 49. Since then, the discovery of a number of species new […]
Urban geology: the Boxtel wall game
The Netherlands is a land of museums, approximately 1,200 of them in a country the size of southeast England. Although the major cities have an ample supply – about 30 in Amsterdam, for example – […]
Gravel sheets in the suburbs of Washington, DC
If you live in western Prince George’s County, Maryland in the USA, in the towns of Oxon Hill and Suitland and you want to dig to place a water line, plant a garden or excavate […]
Geomodels in Engineering – an introduction
This article is based on the introduction to the newly published book Geomodels in Engineering Geology – An Introduction, which is reviewed [on the page opposite]. What, why and when? The Earth is an active […]
Fossil spiders in Baltic amber
Introduction Spiders represent the most diverse group of obligate predators (that is, predators that feed solely on other animals) in terrestrial ecosystems today, with almost 48,000 extant species in 118 families described to date. The […]
Duria Antiquior: a nineteenth-century forerunner of palaeoart
In a breath of inspiration in 1830, English geologist, Henry De la Beche (1796–1855), while exploring new intellectual territories in the emerging fields of palaeontology, painted Duria Antiquior (meaning “a more ancient Dorset”), a representation […]
Concretions in sandstones of the Inner Hebrides, Scotland
Concretions are a common feature in many sedimentary rocks, yet they seem sometimes to be misunderstood. So, how do concretions form? As well-studied examples, let’s look at the ones found in some of the sandstones […]
Important Green River Formation fossils come to New York
In the early Eocene Epoch, drainage from the newly uplifted Rocky Mountains filled an inter-mountain basin to form what geologists call Fossil Lake. The climate of Fossil Lake was subtropical, similar to the climate of […]
An introduction to aetosaurs
The Triassic Period was one of the key episodes in the evolutionary history of life. It marks the transition from the Palaeozoic to the Mesozoic Era, preceded by the Permian/Triassic mass extinction – the greatest […]
Jade: the Imperial green Gem of the East
In this, the first of a five-part series exploring the mineral Jade, I will explore the various locations around the world in which Jade is found and mined. The world geography of jade mining Imperial […]
Urban geology: a failed example of gabions as false urban geology from the Netherlands
The provinces of Noord and Zuid Holland, including much of the Dutch North Sea coast and adjacent inland areas, are devoid of rocky exposures. In a region of flat-lying Pleistocene siliciclastic successions (Burck et al, […]
The prominent figures of the 1800s who gave rise to vertebrate palaeontology
For centuries, the creatures of the past, from the terrifying theropod dinosaurs to the tiny early mammals, have captured the imaginations of millions. However, the people who put those beasts into the limelight are rarely […]
The mystery of time: a quest to solve the age of the Earth
The question of the age of the Earth and its former inhabitants is one of great interest to us all. Most are aware that the Earth is understood today to be approximately 4.6 billion years […]
The mysterious blue orbs of K2 granite
K2 granite is found near the base of K2, the mountain it is named after, in the Himalayas from a rarely visited site. K2, also called “Mount Goodwin Austen” is the second highest mountain in […]
The Clarkia Flora: 16-million-year-old plants offer a window into the past.
Near the small town of Clarkia in Shoshone County, Idaho in the USA, exists a rich and unique fossil deposit. The Clarkia fossils, or Clarkia Flora, as the deposit is mostly called due to the […]
Stop the press: the Jurassic Coast starts in the Permian. A Geologists’ Association field meeting report of a two-day excursion to the South Devon Coast with Prof John CW Cope
This Geologists’ Association field meeting followed the publication of Professor John Cope’s Geologists’ Association (GA) Guide No 73, Geology of the South Devon Coast (https://geologistsassociation.org.uk/guidesales.html; £9 for members and £12 for non-members), which was reviewed […]
Rocks in Roslin Glen: a record of a swampy past
Midlothian is an area of central Scotland that lies to the west of Edinburgh and is an area with strong geological connections due to a history of mining for both coal and oil shale. As […]
Introduction to the Messel Pit
The Messel Pit represents a Konservat-Lagersttätte dating to the Eocene Epoch 47 million years ago. The site is in Hessen State in Germany, close to the city of Darmstadt. It is a disused oil shale […]
Colourful bluffs in Long Island recall the most recent ice age
Imagine a tremendous piece of land moving equipment that scraped up the soil and some of the surface bedrock from four states within the United States’ Eastern Seaboard, carrying and dragging it all the way, […]
Bryozoans in the English Chalk
We are very fortunate in Britain to host one of the most remarkable deposits in the entire geological record, the Chalk. The Late Cretaceous Chalk (with a capital ‘C’) is an extremely pure limestone, famous […]
Volcanism in the ancient world
In the ancient Greek and Roman world, volcanism was recognised as a divine phenomenon standing in close connection with the fire god, Hephaestus or Vulcan. Although there did not exist any term corresponding to the […]
Urban geology: the strange tale of a windowsill
Leiden, in the Dutch province of Zuid-Holland, is a city with a fine selection of fossiliferous building stones, mainly Mississippian (Visean, Lower Carboniferous) limestones. which preserve an array of fossils, such as rugose and tabulate […]
Triassic beasts and where to find them
Located amid the scenic Southern Alps, on the Swiss-Italian border, is Monte San Giorgio, a mountain that rose up like many across Central Europe as a result of continental collision between Africa and Europe during […]
La Gomera: a short geological guide
Introduction The island of La Gomera has an area of 370km2, it is 25km in diameter, has a maximum altitude of 1,487m (Alto Garajonay) and is situated approximately 40km west of Tenerife. Unlike the other […]
Whitby Jet and the Toarcian Oceanic Anoxic Event
One hundred and eighty million years ago in the Toarcian Stage of the Lower Jurassic Period, the Earth was very different from the world we know today. The continents were all clumped together in a […]
The geological transformation of Sharjah, United Arab Emirates
In this article, I will briefly deal with the fascinating and relatively recent geological transformation of the Sharjah region of the United Arab Emirates (UAE). Sharjah needs no introduction in terms of it being a […]
The daily lives of fossil reptiles
The Mesozoic and Cenozoic deposits of Southern England have long been a rich source of fossil reptiles. Past finds of great historical importance include some of the earliest known examples of dinosaurs, ichthyosaurs and pterosaurs. […]
Terrestrial Conservation Lagerstätten
Ever since Charles Darwin pointed out the problem, evolutionary biologists have been worried by the incompleteness of the fossil record. Whilst our knowledge of the diversity of life in deep time has greatly improved in […]
Coal Mining in the East Neuk
As the author, John McManus, writes: “The East Neuk of Fife was blessed with a mineral resource that was relatively easy to access”. This resource was coal – the driver of the industrial revolution and, […]