Deltaic and associated alluvial areas located at the mouths of rivers that flow into the bay-estuary-lagoon system along the Texas coast serve as habitats for extensive salt, brackish, and fresh-water marshes, which are crucial components of biologically productive estuarine ecosystems. These bay-head depositional systems are predominantly formed by fluvial sediments transported and deposited by the major rivers that discharge into the estuarine waters. The loss of over 10,000 acres of wetlands in the alluvial and deltaic areas of the Neches and San Jacinto Rivers underscores the necessity to closely examine the processes that establish, sustain, and degrade these vital natural resources along the Texas coast.Bureau of Economic Geolog
