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26 April 2024 |
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Large groundwater strontium flux to the oceans from the Bengal Basin and the marine strontium isotope record | | A R Basu
; S B Jacobsen
; R J Poreda
; C B Dowling
; P K Aggarwal
; | | Date: |
24 Aug 2001 | | Journal: | Science, 293 (5534), 1470-3 | | Abstract: | Strontium concentration and isotopic data for subsurface flowing groundwaters of the Ganges-Brahmaputra (G-B) delta in the Bengal Basin demonstrate that this is a potentially significant source of strontium to the oceans, equal in magnitude to the dissolved strontium concentration carried to the oceans by the G-B river waters. The strontium concentrations of groundwaters are higher by a factor of about 10 than typical G-B river waters and they have similar 87Sr/86Sr ratio to the river waters. These new data suggest that the present contribution of the G-B system to the rise in 87Sr/86Sr ratio in seawater is higher by at least a factor of 2 to 5 than the average over the past 40 million years. | | Source: | PubMed, pmid11520982 doi: 10.1126/science.1060524 | | Services: | Forum | Review | Favorites | |
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