Strontium and neodymium isotopic compositions in sediments from Godavari, Krishna and Pennar rivers

Current Science

Volumn 97, Issue 12, 2009, Pages 1766-1769

  Ahmad, S Masood ^a   Padmakumari, V M ^a   Babu, G Anil ^a  

^a NATIONAL CHEMICAL LABORATORY   (India)

Author keywords

Bay of Bengal; Deccan traps; River sediments; Sr and Nd isotopic compositions

Indexed keywords

EID: 76749108575     PISSN: 00113891     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (28)

1. 86Sr. Earth Planet. Sci. Lett., 1992, 109, 243-253.
2. 86Sr: impact on the marine Sr record. Earth Planet. Sci. Lett., 1996, 142, 59-74.
3. Goldstein, S.J. and Jacobson, S.B., The Nd and Sr isotopic systematics of river-water dissolved material: Implications for sources of Nd and Sr in seawater. Chem. Geol., 1987, 66, 245-272.
4. Singh, S.K. and France-Lanord, C., Tracing the distribution of erosion in the Brahmaputra watershed from isotopic composition of stream sediments. Earth Planet. Sci. Lett., 2002, 202, 645-662.
5. Gupta, A.K., Ahmad, S.M., Dayal, A.M. and Gopalan, K., Is strontium isotope record a strict proxy for chemical weathering rates during the late Miocene (Ocean Drilling Program Site 758A)? Curr. Sci., 2000, 79, 899-902.
6. Kessarkar, P.M., Purnachandra Rao, V., Ahmad, S.M. and Anil Babu, G., Clay minerals and Sr-Nd isotopes of the sediments along the western margin of India and their implication for sediment provenance. Mar. Geol., 2003, 202, 55-69.
7. Goldstein, S.L., O'Nions, R.K. and Hamilton, P.J., A Sm-Nd isotopic study of atmospheric dusts and particulates from major river systems. Earth Planet. Sci. Lett., 1984, 70, 221-236.
8. Dia, A., Dupre, B. and Allegre, C.J., Nd isotopes in Indian Ocean sediments used as a tracer of supply to the ocean and circulation paths. Mar. Geol., 1992, 103, 349-359.
9. Revel, M., Cremer, M., Grousset, F.E. and Labeyrie, L., Grainsize and Sr-Nd isotopes as tracer of paleo-bottom current strength, Northeast Atlantic Ocean. Mar. Geol., 1996, 131, 233-249.
10. Innocent, C., Fagel, N. and Hillaire-Marcel, C., Sm-Nd isotope systematics in deep-sea sediments: clay-size versus course fractions. Mar. Geol., 2000, 168, 79-87.
11. Dasch, E.J., Strontium isotopes in weathering profiles, deep-sea sediments, and sedimentary rocks. Geochim. Cosmochim. Acta, 1969, 33, 1521-1522.
12. Biscaye, P.E. and Dasch, E.J., The rubidium and strontium isotope system in deep-sea sediments: Argentine Basin. J. Geophys. Res., 1971, 76, 5087-5096.
13. Pierson-Wickmann, A.C., Reisberg, L., France-Lanord, C. and Kudrass, H., Os-Sr-Nd results from sediments in the Bay of Bengal: Implication for sediment transport and the marine Os record. Palaeoceanography, 2001, 16, 435-444.
14. Colin, C., Turpin, L., Bertaux, J., Desprairies, A. and Kissel, C., Erosional history of the Himalayan and Burman ranges during the last two glacial-interglacial cycles. Earth Planet. Sci. Lett., 1999, 171, 647-660.
15. Ahmad, S.M., Anil Babu, G., Padmakumari, V.M., Dayal, A.M., Sukhija, B.S. and Nagabhushanan, P., Sr, Nd isotopic evidence of terrigenous flux variations in the Bay of Bengal: implications of monsoons during the last ~34,000 years. Geophys. Res. Lett., 2005, 32, 122711.
16. Goodbred Jr, S.L. and Kuehi, S.A., Enormous Ganges-Brahmaputra sediment discharge during strengthened early Holocene monsoon. Geology, 2000, 28, 1083-1086.
17. Subbarao, M., Some aspects of continental shelf sediments of the east coast of India. Mar. Geol., 1964, 1, 44-58.
18. Krishnan, M.S., Geology of India and Burma, CBS Publishers and Distributors, 1982, 6th edn.
19. Sarin, M.M., Rao, K.S., Bhattacharya, S.K., Ramesh, R. and Somayajulu, B.L.K., Geochemical studies of the river-estuarine systems of Krishna and Godavari. Mahasagar, 1985, 18, 129-143.
20. Somayajulu, B.L.K., Martin, J.M., Eisma, D., Thomas, A.J., Barole, D.V. and Rao, K.S., Geochemical studies in the Godavari estuary. Mar. Chem., 1993, 43, 83-93.
21. Sharma, M., Balakrishna, K., Hofmann, A.W. and Shankar, R., The transport of osmium and strontium isotopes through a tropical estuary. Geochim. Cosmochim. Acta, 2007, 71, 4856-4867.
22. Pascoe, E.H., A Manual of the Geology of India, Calcutta, Govt. of India Press, 1964, p. 2130.
23. Bakshi, A.K., The Rajahmundry Traps, Andhra Pradesh: Evaluation of their petrogenesis relative to the Deccan Traps. Proc. Indian Acad. Sci. (Earth Planet. Sci.), 2001, 110, 397-407.
24. Subba Rao, K.V., Walsh, J.N., Dayal, A.M., Zachariah, J. and Gopalan, K., Enriched mantle at Rajahmundry, east coast of India. Proceedings of the Conference on Isotopes in Solar System, PRL, Ahmedabad, India, 1997, p. 23.
25. Singh, S.K., Rai, S.K. and Krishnaswami, S., Sr and Nd isotopes in river sediments from the Ganga Basin: sediment provenance and spatial variability in physical erosion. J. Geophys. Res., 2008, 113; doi:10.1029/2007JF000909.
26. Chakrapani, G.J., Gaillardet, J., Dupre, B. and Allegre, C.J., Osmium isotopic compositions in Ganga river sediments. Curr. Sci., 2002, 83, 1253-1255.
27. Lightfoot, P.C., Hawkesworth, C.J., Devey, C.W., Rogers, N.W. and van Calsteren, P.W.C., Source and differentiation of Deccan Trap lavas: implications of geochemical and mineral chemical variations. J. Petrol., 1990, 31, 1165-1200.
28. Rao, V.P., Clay mineral distribution in the continental shelf sediments from Krishna to Ganges river mouth, East coast of India. Indian J. Mar. Sci., 1991, 20, 7-12.