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flint

Cambrian Rockhound
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Posts: 125
Reply with quote  #1 
SAM_3486.jpg  found this yesterday!
hopefully somebody here (rolo?) can give me the green light and explain.
I would have not noticed or picked up this rock, if I would not have been inspired by this site and haistings. I believe it could be the footprints/armprints of some jurrasic animal.
the what looks clawmarks are clearly visible, and the paws obviously dragged.
I think it's sandstone and the cross section clearly shows bands of lighter and darker material, just like this days blacksand layers on a beach or river.




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estwing

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Cambrian Rockhound
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Reply with quote  #2 
Hi flint
It looks sedimentary to me, something like fossil ripple marks
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flint

Cambrian Rockhound
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Posts: 125
Reply with quote  #3 
it's not ripple marks. as explained, most of the grooves have got a very deep and narrow intentation at the starting point, which ripple marks don't have. as well ripple marks don't start all at the same spot...
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