Hi Dear researcher
Could you please offer me any reliable reference regarding estimating the age of a lake considering the entrance of constant salt rate in a certain year and existing the amount of salt equivalent to amount of salt solved within lake as precipitated on its bed?
Thanks.
When you say "the age of a lake" I believe you mean the residence time of the lake water. A simple way to determine this is the following:
T=V / v
where T is the residence time, V is the total volume of the lake and v is the amount of water entring and leaving the lake in a year.
In order to quantify the salt, one needs to know the flow (v), if one knows the flow, T is already known.
It seems unneccessary to estimate the salt.
I believe water residence time only tells the age of the water inside the lake - how long has the water been inside that particular lake. This apply exclusively to the water itself and not necessarily to the dissolved substances - 'salt' in your question since solutes are subject to bio-geochemical processes along their pathway and may not reflect the age of the lake water itself.
Remember, incoming water might also flows from subsurface of that lake depending on morphometry of your lake and this could complicate your later conclusion.
Therefore, to estimate the age of a lake, you may want to do carbon dating of core sediment of the lake.
Dear Hassan,
To estimate the age of the lake, the reflection seismic-radiocarbon method (RSRM),gives a very good result.
With my best regards
Prof. Bachir ACHOUR
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