Articles | Volume 7, issue 3
https://doi.org/10.5194/esurf-7-723-2019
https://doi.org/10.5194/esurf-7-723-2019
Research article
 | 
09 Aug 2019
Research article |  | 09 Aug 2019

Seeking enlightenment of fluvial sediment pathways by optically stimulated luminescence signal bleaching of river sediments and deltaic deposits

Elizabeth L. Chamberlain and Jakob Wallinga

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Short summary
Sand and mud may take many different pathways within a river as they travel from inland to the coast. During the trip, grains may be exposed to daylight, resetting a signal trapped within certain minerals. The signal can be measured in a laboratory to estimate the time since last light exposure. Here, we measure the trapped signal of sand and mud grains from the Mississippi River and its banks. We use this information to infer sediment pathways. Such knowledge is useful for delta management.