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Franois Chabaux Mathieu Granet Eric Pelt Christian France-Lanord Valier Galy 《Journal of Geochemical Exploration》2006,88(1-3):373
This study uses 238U–234U–230Th disequilibria in river sediments in order to constrain the transfer times of sediments in alluvial plains of rivers from Himalaya and the Gangetic plain. From the observed distributions we infer sediment transfer times of about 100 ka in the Gangetic plain for rivers taking their source in the Himalayan chain, and longer transfer of about 160–250 ka for foothill-fed rivers. This difference is probably related to the difference in the sediment transport dynamics of these two types of rivers. 相似文献