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Flute Casts in the underlying Greywacke near Panorama crag.
© Dave Warburton, Mar 2011
Camera used: Canon IXUS 130

User Comments

Are these fossils?
Phippsy - 11/Mar/11
Sort of, they are sedimentary structures caused by scouring and then infilling of sediment, often during submarine sediment flows.
Dave Warburton - 11/Mar/11
Will Hunt - 12/Mar/11
Would they have been formed in the streamway of a cave or on the surface?
deepstar - 12/Mar/11
Most probably a submarine debris flow, almost like an avalanche of sediment flowing down an offshore slope into deeper water. In doing so, it scours the underlying sediment and those scours are infilled and retained here - This is the base of one of those flows.
Dave Warburton - 13/Mar/11
If you're not interested in something it doesn't make you clever, Will.
Rog Wilko - 13/Mar/11
A bit of context, Rog. I'm studying Physical Geography at Leeds Uni where Dave is doing Geology. Bit of inter-course rivalry. I do find this stuff interesting but unfortunately its not my field so I don't know enough to fully understand the process which Dave is describing.
Maybe I'll ask you at the Packhorse on Wednesday Dave? Maybe I'll fall asleep in my pint?
Will Hunt - 13/Mar/11
You'll be hard pushed to find me at the Packhorse these days Will...
Dave Warburton - 13/Mar/11
Even I understand this Will and I was crap at geology 3 years ago. I thought you knew all about castes anyway?
Franco Cookson - 06/Aug/11
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This picture is copyright. If you want to reproduce or otherwise re-use it, please email the photographer direct via their user profile. Photo added March 11 2011.