Although they represent less than ~10% of the world ocean area, continental shelves are sedimentologically and biogeochemically important. To understand dynamics of the present western continental shelf of India, Kurian et al. describe an extensive geochemical and isotopic data set from a range of settings. The results reveal spatial patterns in major elements and rare earth elements, Corg/N molar ratios, δ13C and δ15N values, trends interpreted in terms of sediment provenance. These patterns reflect the variable physical and biochemical processes in the source regions and in the depositional setting, and may be reflected in ancient successions as well.
Geochemical and isotopic signatures of surficial sediments from the western continental shelf of India: inferring provenance, weathering, and the nature of organic matter by Siby Kurian, B. Nagender Nath, N. Chandramohana Kumar, and K.K.C. Nair