Showing posts with label favreinid. Show all posts
Showing posts with label favreinid. Show all posts

Friday, March 21, 2014

Pine Beach, Alabama, 2002



An unusual storm windrow mostly made out of favreinid fecal pellets. Only time I've ever seen this on the beach, though I have seen one in a rock core more than 100 million years old.*

The windrow was quite extensive. It consisted almost entirely of fecal pellets of callianassid burrowing shrimp. This green-gray blanket was deposited by Tropical Storm Isidore. How did the stormsort out just these soft & fragile cylindrical pellets?




*West Appleton oil field, Jurassic Smackover Formation, samples from a couple of miles underground.