How much do we know about Stonehenge? Less than we think. And what has Stonehenge got to do with the Ice Age? More than we might think. This blog is mostly devoted to the problems of where the Stonehenge bluestones came from, and how they got from their source areas to the monument. Now and then I will muse on related Stonehenge topics which have an Ice Age dimension...
THE BOOK
Some of the ideas discussed in this blog are published in my new book called "The Stonehenge Bluestones" -- available by post and through good bookshops everywhere. Bad bookshops might not have it....
To order, click HERE
Some of the ideas discussed in this blog are published in my new book called "The Stonehenge Bluestones" -- available by post and through good bookshops everywhere. Bad bookshops might not have it....
To order, click HERE
Friday, 21 March 2014
Glacial trough, Sermilik Fjord, East Greenland
There are some splendid glacial features here -- this is a photo of a subsidiary trough or glaciated valley coming out from the mountains into a broader tough (foreground) which is now largely ice-free. The location -- near Sermilik Fjord in East Greenland.
The black lines show:
1. The break between the jagged peaks on the skyline, which are fashioned above all else by periglacial processes (marked A) and the ice-moulded rock surfaces below (marked C), which have been dramatically fashioned by glacial erosion at a time when the glacier was thicker and more powerful.
2. The crest of a splendid ridge of terminal moraine, which runs out into the valley in the foreground, marking the position of a stillstand or protracted position of the glacier front.
The glacier itself (marked B) has now shrunk considerably in size.
In the foreground (marked E) there are much older morainic deposits, now for the most part covered with vegetation, and with a litter of erratic boulders on the ground surface.
If you click on the photos you can enlarge them to inspect all the features in greater detail...... you should be able to click back and forth between the clean photo and the annotated one.
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