River water, seawater, and groundwater interaction in Hooghly River

Abstract: The rivers of the Himalayas (Ganges-Brahmaputra) bring a significant amount of radiogenic Sr to the oceans. As a result, it is believed that the increase in the ratio of 87Sr to 86Sr in seawater over the past 40 million years is mainly caused by the erosion of the Himalayan region and the subsequent transport of this material by these rivers. Estuaries, which are areas where rivers meet the ocean, play a major role in carrying dissolved and solid materials from the land to the sea. In this study, we present findings on the changes in Sr concentrations and the 87Sr/86Sr ratio in water samples with different levels of saltiness collected from the Hooghly (Ganga) estuary in India, which is dominated by tidal movements.
 

Date/Time
Date(s) - 23/02/2023
5:00 pm - 6:00 pm