Coastal and nearshore sediment samples of the eastern coastal zone of Bangladesh

This dataset is composed of nearshore and coastal sediment from 42 samples. Samples are collected from three coastal areas in the eastern coastal zone of Bangladesh, which includes the part of the northern Bay of Bengal. 17 samples were collected from the Cox’s Bazar coast, numbered as C1 to C17; 10 samples are from the Teknaf coast, numbered T16 to T25; and 15 samples are from Saint Martin’s Island coast, numbered here as T1 to T15. Samples were retrieved from the seafloor using a Van Veen grab sampler from February 2018 to March 2019. After retrieving the samples, they were transported to the laboratory using geological sample bags. Samples were dried in the open air and taken at approximately 100g for sieving. All the samples fall below the 2 mm size of the sieve. So, six sieve meshes (1mm, 0.5mm, 0.25mm, 0.125mm, 0.063mm, and pan) were used for the determination of grain size. Sediment grain sizes were calculated using Folk and Ward (1957) formulae.