Energy resources: Coal
Energy resources: Coal

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Free course

Energy resources: Coal

4.2 Coal distribution in the UK and Europe

The UK and Europe were fortunate in having extensive coalfields that powered the Industrial Revolution. Figure 33 shows the distribution of the major Carboniferous mires which became coal-bearing rocks across Europe, either outcropping at the surface or buried beneath younger rocks. The first thing that is evident from this map is that not all countries shared the same good fortune; either such rocks were deposited, but were subsequently eroded away, or they were never deposited in the first place.

In deciding which of these two possibilities is correct you need to look more closely at Figure 33. It shows the geography of Europe as it might have appeared in Late Carboniferous times, about 300 Ma ago, when the entire region lay close to the Equator. It is clear that the Carboniferous landmass bears little resemblance to the present-day coastlines, which are superimposed on the map for reference.

Figure 33
Figure 33 A map of the present-day North Atlantic region showing the palaeogeographical distribution of mires in Late Carboniferous times. Most of central Europe was mountainous, bounded to the north by low-lying plains and coal-forming mires. Areas where the major Carboniferous coal bearing rocks are preserved (both at the surface and at depth) are superimposed in black.
  • Why are the outlines of Greenland and Norway so close together in Figure 33?

  • The North Atlantic Ocean did not exist in Carboniferous times.

Carboniferous Britain and north Europe formed a low-lying plain backed by newly formed mountains to the south and a shallow sea to the north, beyond present-day Scandinavia. Tropical waterlogged mires developed across Britain and Ireland, through the southern North Sea into Belgium, the Netherlands and northern Germany and east into Poland, as well as between Greenland and Scandinavia. It is likely that coal formed across the whole of this area.

So, why aren't Carboniferous coal measures found over all the area that was land during that period? Consider the following.

  • Is it likely that coal-bearing rocks would have formed in the mountainous areas?

  • Coals form from mires found mostly (though not exclusively) in low-lying areas (see Section 1.3). Therefore, it is unlikely that Carboniferous coal would have formed in the mountainous areas marked on Figure 33.

  • Why are no Carboniferous coals found over the plains area marked in light green on Figure 33?

  • Although relatively low-lying, these areas (including Scandinavia, the Baltic States, south-eastern England and west Wales) were hilly enough to prevent the development of mires.

  • Why aren't Carboniferous coals preserved over all the area once covered by mires?

  • In many areas that have undergone uplift due to tectonic activity, erosion may have removed the coal-bearing sequence. (This happened in the Pennine area of the UK.)

Erosion also helps to expose Carboniferous coals by removing overlying, younger rocks. As a result, surface mining is common in the Ruhr area of Germany, in Poland, in the Midland Valley of Scotland, and in parts of Lancashire and Yorkshire.

Skip Your course resources

Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to University-level study, we offer two introductory routes to our qualifications. You could either choose to start with an Access module, or a module which allows you to count your previous learning towards an Open University qualification. Read our guide on Where to take your learning next for more information.

Not ready for formal University study? Then browse over 1000 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus371