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Floods Of The Mekong At Chiang Saen, Northern Thailand: Archaeological And Osl Dating Of Large Floods, Spencer H. Wood, Alan D. Ziegler, Tammy M. Rittenour

Spencer H. Wood

One meter and a half of floodplain sediment buries AD 14‐15th C brick temple ruins and cultural layers on the Laos floodplain of the Mekong, across from Chiang Saen Noi. Dark soil layers separating three flood‐sediment layers suggest the soils developed on sediment layers deposited by large floods. Little or no deposition occurs between such events. The upper flood layer was probably deposited by the September, 1966 flood that inundated Chiang Saen city to a depth of three meters, with maximum gage height reaching 13.82 m, and peak flow of 23,500 m3/s. In comparison, the depth of the August 2008 …