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| Twelve Apostles (Dumfries) |
[752 x 564 jpg]
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|Description ||Some good examples of double cupmarks on this stone.|
|Martin L |
| Is this anthropogenic? |
| I rather think so....perhaps it starts with bivalve organisms, which then deepen with normal erosion? MartinL's suggestion does of course remind me of similarity with surface depressions which may have been started off by snails and then deepened...like the holes at Avebury being started off by molluscs: http://en.wikipedia.org/wiki/Bivalvia|
|Martin L |
| Thanks Pab. I simply was irritated by the term "cupmarks" as I thought this is limited to rock-art and not used for kinds of natural erosion depicted here. |
| I've done a little research, some terms to bear in mind for natural depressions in rock caused by weathering are gnammas or tafones but I can't find any images of either which are small enough to compare to these.|
There's some discussion here on natural cupmarks http://rockartuk.fotopic.net/c1936912.html
| whatever the real cause I think they look like children's footprints in the snow! perhaps it's the little folk and I rather fancy there might be one staring back at us from that pair of deep footprints in the centre front?|
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