Day one of my strat trip found us mapping fluvial and volcanoclastic deposits in the Cove Palisades State Park. It was nearly four hours of hiking up the road, examining the road cut, and taking measurements. What did we find? Lots of fluvial deposits such as rounded cobbles and sand stone towards the lake and volcanic teffra towards the top. Here’s a few pictures to show the sequence. I included scale where it was safe to do so. I can’t get into too much detail because I’m posting this from my phone.
Our work area seen from the top
Layer of cross-bedded sandstone on the bottom with rounded cobble on the top. All indicative of fluvial deposition.
Welded ash with pumice
An example of beautiful cross-bedding in sandstone
The meeting of fire and water. The rounded cobbles at the bottom were deposited in a fluvial environment. The thick layer in the middle is from an ash flow, while the layer directly above it is ash fall. The later directly above that is more rounded cobble.
Another example of beautiful cross-bedded sandstone and gravel.
And to end it all, nice columnar basalts.
Spectacular! Thanks, I really need to make it to this location.
I thought you would like those! I’ll post the rest when I can. Lots of cool depositional features like lahars, ash fall, and hydroclastic basalts.