One of my favourite photos of a glacial lake margin. This is from South Georgia -- photo by Chalmers Clapperton. Note that this lake has a wildly oscillating surface -- it's quite probable that these shorelines are not in a tidy time sequence at all. Also, note that the strandlines are well marked where the rocky slopes are relatively gentle, but less well marked at the far end of the lake where there are quite active scree slopes.
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
3 comments:
Brian,
Scree destroys strandlines! As the same action creates the scree. And scree is what we have at Rhosyfelin. When strandlines are destroyed does the lake cease from having been?
Kostas
Kostas -- strandlines are created by wave action. Scree is created by frost action and the work of gravity. What's your point?
Frost action affects all sides of a glacial lake. As wave action also does. When the terrain, however, is steep, these actions will create scree. That's my point.
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