Foraminiferal Distribution and Sediment Characteristics of Palar Estuary Tamil Nadu, India

Foraminiferal assemblage in the Palar estuary comprises more than 85 % of calcareous perforated benthic fauna with higher abundance of rotalids followed by miliolids and agglutinated forms. The study area exhibits alkaline environment and the fauna is abundant in fine to very fine sand. Textural analysis reveals that the sediments are chiefly composed of sand with less mud in the study area, and are deposited mostly in fluvial condition with less marine impact.