pls, help to identify the features. is it bioturbation or just iron oxide?

[aliny]

 

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[ANTIQUARIAN]

Welcome to Tnet from Toronto aliny!

You might want to re-post your thread here as well... Geological Forums

Dave

 

[aliny]

Welcome to Tnet from Toronto aliny!

You might want to re-post your thread here as well... Geological Forums

Dave

Thanks!

 

[Gambrinus]

I don't see Iron oxide not saying it is not there, I just don't see it. Your third picture looks like it was caused by wave action.

 

[gold tramp]

Ripple marks..
Gt..

 

[Moesia]

Interesting...

 

[DDancer]

I see concretions in the first two images, not unusual for sandstones, and the rippled one may be the ossification of a shore or underwater bed. Only iron staining I see are the concretions in the second image.