238U–234U–230Th disequilibria and timescale of sedimentary transfers in rivers: Clues from the Gangetic plain rivers Academic Article uri icon

abstract

  • This study Uses U-238-U-234-Th-230 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. (c) 2005 Elsevier B.V. All rights reserved.

publication date

  • January 2006