Geological History of Britain (2015)

William Smith’s 1815 geological map of England and Wales.

The PowerPoint slides for my 2015 one-day course on the Geological History of Britain can be downloaded here:

1. Introduction: 2015_GHB_Part1

2. Cainozoic: 2015_GHB_Part2

3. Mesozoic: 2015_GHB_Part3

4. Palaeozoic: 2015_GHB_Part4

5. Proterozoic & Archaean: 2015_GHB_Part5

To view the files I produced for my 2012 evening class on the Geological History of Britain, which provide more detail on many of the topics introduced here, click the ‘GHB’ tab below this post, or follow this link: http://fossilhub.org/?tag=ghb.

To obtain a copy of the British Geological Survey’s ‘Climate Through Time’ poster, follow this link: http://www.bgs.ac.uk/discoveringGeology/climateChange/climateThroughTime.html.

To view the figures from the Geological History of Britain and Ireland book (Woodcock and Strachan 2012), follow this link: http://bcs.wiley.com/he-bcs/Books?action=index&bcsId=7187&itemId=1405193824.

To view the photos and figures from the Geological Conservation Review series of books on British geology, follow this link: http://www.thegcr.org.uk/ImageBank.cfm.

Intro To Gcl Maps 8

Time, and other geological maps

Geological time spiral (from Wikimedia Commons)

Week 8 lecture notes (pdf): 2014_IntroGclMaps_8

An aeromagnetic anomaly map of the Humber-Trent region (from the BGS).

The World digital magnetic anomaly map, or WDMAM project.

A gravity anomaly map of the Humber-Trent region (from the BGS).

Overview of gravity anomaly maps and the shape of the Earth (from NASA).

Gravity map traces ocean circulation (BBC News story). For more information on the GOCE research, visit the project website. There is even an online brochure giving ‘New Views Of Dynamic Earth’.

The G-BASE project, providing geochemical maps of Great Britain (from the BGS).

Geochemical maps of the Irish borders (from the Tellus project).

A hydrogeological map of southern Yorkshire, including York (from the BGS).

A geological map of the asteroid Vesta (from the Wired Map Lab).

An Introduction to Geology: 2014

Week 9. Fossils.

How to tell bone from stone: Smithsonian magazine article by Brian Switek.

The Fossil Record of Cricket (an article I wrote for ESPN Cricinfo). I later wrote another on the evolution of fast throwing.

 

Weeks 6. & 7. TECTONICS

The day the Earth moved – very interesting article in Cosmos magazine describing the revolutionary times of 1963, when tectonic theory came to the fore.

The Moho (or, more properly, the Mohorovičić Discontinuity) is the boundary between the crust and the mantle. It is not the same as the boundary between the lithosphere and aesthenosphere, because the lithosphere includes the solid upper mantle.

Much of the lower mantle is thought to be composed of a (newly named) mineral called bridgmanite.

There is also new evidence, including a recently discovered terrestrial sample of a mineral called ringwoodite, that the lower mantle (410 to 660 km below the surface) has considerable volumes of water trapped in it.

Both bridgmanite and ringwoodite are varieties of olivine, as explained in this helpful article.

 

Week 5. A BIT MORE TIME

Faunal correlation (from Wikimedia Commons)

Here are a few 2014 additions to all the existing ‘IntroGeol’ files already on the site, as follows:

Lecture notes for Class 5 “A Bit More Time”

2014_IntroGeol_Lect5 (PowerPoint)

The Rock Cycle

An excellent, rather more detailed version of the rock cycle, illustrating the subdivisions of the different sections, can be seen on the Geology Cafe website here.

Stratigraphy

The 2014 edition of the geological time scale, produced by the International Commission on Stratigraphy (ICS) can be downloaded here.

If you want details of where in the world any of the Global Boundary Stratotype Sections and Points (GSSPs) are, Wikipedia provides a pretty comprehensive list here. It is based on the International Commission on Stratigraphy’s list, which can be found here.

For more information on clay minerals, also known as sheet silicates, also known as phyllosilicates (literally ‘leaf silicates’, deriving from the same Greek origin as ‘filo’ pastry), these course notes by Prof. Stephen Nelson of Tulane University are very helpful.

An excellent Conversation article on why the discovery of clay minerals on Mars is rather important.

A Very Short History of the Earth

Time Spiral (from Wikimedia Commons)

ChronoZoom – an interactive time scale showing the age of life, the universe and everything (if your computer has the right browser!).

Stratigraphy

ICS – The International Commission on Stratigraphy (the latest geological timescale can be found here).

William Smith and biostratigraphy (part of a University of California Berkeley series on the history of evolutionary thought).

John Phillips – the Time Lord of York (my article for York Mix).

Absolute dating

A quick introduction to radiometric dating (University of California Berkeley).

How to calculate the age of meteorites (or anything else for that matter).

Rock Around The Clock (Daily Telegraph article on the 4.4 billion year-old zircon crystal from Australia). The scientific paper can be found here.

Fossils & Extinction

From soup to cells (Berkeley introduction to the origins of life on Earth).

Solving Darwin’s Dilemma – Precambrian rocks really do contain abundant fossils (report of 2009 study by scientists at Oxford University).

First Life – David Attenborough tackles the origins of life, including the Precambrian fossils found near his childhood home in Leicester.

Mass extinctions (NHM guide to the “Big Five”). If you fancy a “Big Five” walking tour of London, you can follow my not entirely serious guide.

Prehistoric fossil collectors (article from the Geological Society).

How will humans go extinct? (article on BBC News, 24 April 2013).

Hidden Horizons website (Scarborough-based company run by Will Watts, offering Geology & Natural History Education and Events. Look out for information on the upcoming Yorkshire Fossil Festival).