Note
A conceptual model for the maintenance of equilibrium shoreface textures is tested on the shoreface of Long Island, New York, by using empirical eigenfunction analysis on sediment grain-size data. A bluff, composed of morainal material in the headland section, is a possible external sediment source for the study area. Within the shoreface system, a remnant terminal moraine lobe complex, sediments associated with old tidal inlet outer channels, and drowned outwash plain deposits are permanent (irreversible) internal sediment sources.