The present study was carried out during the month of November 2012 from Manora, Palk Strait near Pattukkottai, Thanjavur district in Tamil Nadu, One core sample up to 95 cm depth were collected and further, the core was sub sampled into 5cm interval, totally 19 samples were studied. Sediment samples were collected from PVC pipes. All the sediment samples were subjected to standard micropaleontological techniques. The foraminiferans were separated, counted, identified up to species levels using standard references. The calcium carbonate was determined by titration method (Piper, 1947),...

The present study area extends between Pondicherry and Parangipettai. Heavy mineral by weight percentage of the all the three fractions namely, coarse, medium and fine are grouped. In the study area the heavies are dominant in Parangipettai (21.83 %), and followed by Narambai (10.89 %), Veerampattinam (9.48 %), Cuddalore (6.91 %), Nanjalingapettai (6.18 %), Samiyarpettai (8.14 %).The present study highlights that the placers is found to be more in the surface as well as core sample in the northern Coastal of Tamil Nadu . This could be due to the winnowing action of waves and currents and...