Abstract
A unique occurrence of lithified, fluvial armored mud balls has been found in the Lower Jurassic Turners Falls Sandstone of north-central Massachusetts. The long axes of the 55 examples range from 2.5 to 30 cm, which agrees with previous studies of modern armored mud balls. Their triaxial ellipsoidal shapes differ from the usual spheroid shapes of modern examples. It is inferred that they formed quickly, after only a few hundred meters of transport in a distal fan environment.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
