boulder anomalies

[1foolishcaribou]

Hi. I know these are poor pictures so I understand if nothing comes from them. This 3' by 3' boulder looks like a big dirt clog up close but is solid. It is in central Washington County, northeastern Oklahoma, Pennsylvanian I think, on the Caney River. 99% of the ground you see it sitting on going down the river and around the bend is coral, but I see no coral in this boulder or the only other boulder (out of view). In this post, the lower middle spot in all three pics is what I am curious about. It's about a foot wide.

 

 

 

 

 

Edited January 31, 2021 by 1foolishcaribou
remove extra pictures

[1foolishcaribou]

This is on the other side of the boulder. They are each about 9"-12" long and 5 " or 6 " wide. I can't load the rest until I delete the one's I have right now. 

[Norki]

My guess would be that these inclusions are rip-up clasts. Basically, these occur when chunks of marine sediment (usually mud) were transported by wave action and redeposited in another sediment base nearby before diagenesis.

[1foolishcaribou]

Interesting. Thank you for that information. It is something I had not heard of.