Evidence for Holocene megafloods down the Tsangpo River gorge, southeastern Tibet

Auteurs :
MONTGOMERY, D.R.
HALLET, B.
LIU YUPING,
FINNEGAN, N.
ANDERS, A.
GILLEPSIE, A.
GREENBERG, H.M.

Description :
Lacustrine and alluvial terraces and sediments record the extent of at least 2 Holocene glacially dammed lakes immediately upstream of the Tsangpo River gorge at the eastern syntaxis of the Himalaya. Catastrophic failure of the glacial dams that impounded the lakes would have released outburst floods down the gorge of the Tsangpo River with big peak discharges. The erosive potential represented by the unit stream power calculated for the head of the gorge during such a catastrophic lake breakout indicates that post-glacial megafloods down the Tsangpo River were likely among the most erosive events in recent Earth history.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 2004, vol. 62, n°. 2, p. 201-207, nombre de pages : 7, Collation : Illustration, Références bibliographiques : 17 ref.

Date :
2004

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier