Abstract
A 7–9m thick prism of fine-grained sediment occurs below the floor of barrier lagoons of the southern Delmarva Peninsula. These fine-grained sediments provide a platform for retreating barriers to migrate across. Initially, the complete fine-grained sedimentary column was believed to represent the infilling of the barrier lagoon during the Holocene transgression. Marine microfauna confirm that deposition of mud occurred in a coastal/estuarine environment. However, X-ray radiographic and palynological analyses suggest shallow-water deposition associated with a cool-climate boreal forest. Much of the lagoonal mud behind the barriers is apparently pre-Holocene, and primordial Holocene lagoons were apparently very shallow. Hence, along the southern Delmarva Peninsula, landward-migrating barrier islands retreated across topographic highs composed of silt and clay.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
