Abstract
ABSTRACT An excavation in northeast New Orleans has exposed the top of the Recent Pine Island barrier spit and overlying progradational deposits related to a formerly active distributary complex (St. Bernard delta) of the Mississippi River. The Pine Island sands contain locally abundant callianassid burrows which, at the subject exposure, constitute the strongest field evidence that their enclosing lithosome is in fact paleoenvironmentally distinct from the succeeding deltaic sediments. These lebensspuren are thus of great potential value in discernment of barrier sands within post-Triassic deltaic/marginal marine successions.
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