I spotted this large striped rock found on Delaware River. Note the fossil in the first picture. What kind of rock is this?
closed as off-topic by Jan Doggen, user12525, Fred, Erik, arkaia Aug 29 at 11:54
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions about rock identification requests are off-topic. For more information, see the announcement on meta." – Jan Doggen, Community, Fred, Erik, arkaia
The boulder appears to be dark grey fossiliferous limestone or dolostone with softer tan layers which might be: limestone or calcareous claystone/siltstone/sandstone. From the photo, the tan layers do not appear to be shale.