Cup Marks — Help please!

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tiompan T
tiompan Feb 21, 2010 21:09:54
Replying to faerygirl

faerygirl wrote:
tiompan wrote:
faerygirl wrote:
tiompan wrote:
faerygirl wrote:
The line of three in the foreground on one picture suggests that they are lying along faults/ clevage/ bedding in the rock which probably means they are caused by natural erosion. But you never know!
If you get a conglomerate with pebbles on a bedding line and they fall out you get a common misapprehension of "cups " .
That was a conglomerate??!!
No , it's sandstone with pebbles although it is in an area of Dunnottar conglomerate .
I know, sorry, my sense of humour getting me in trouble again :)

Thats what I was getting at with the "bedding in the rocks" bit, obviously a change in the sediment type or size which can erode out. But its a shame really, it all looks so convincing, seems sad to just explain it all away with science!!

But the real thing is even better .

H Hob
Hob Feb 22, 2010 02:23:02
Replying to tiompan

Half the fun for me is the guessing and wondering what the cup makers would have thought about the natural ones. Like those crazy vesicle inclusion things that caused arguments about the Langdale Boulders.