Very interesting Meli,
I'd like to know more about this study.  Did the authors measure the  
differential effect of this upon various artifacts, by size or  
specific gravity for example?
Cheers,
Tim

Timothy Scarlett
Assistant Professor of Archaeology
Department of Social Sciences
Michigan Technological University
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(906)487-2359 (office)
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------------------------


On Apr 25, 2007, at 10:04 AM, Meli Diamanti wrote:

> Last weekend I was at the Society for Pennsylvania Archaeology  
> meetings, and there was a paper in which they mentioned the effect  
> of seasonal draw-downs (in which a lake level is lowered in  
> anticipation of flood season).  Sites would normally have been  
> found in the old plow zone, but the draw-down effect was describved  
> as being like pulling the plug in a bath tub.  The topsoil had been  
> drained away from the shallower areas of the lake, leaving only  
> subsoil, and had accumulated in the lower part of the lake, leaving  
> thicker sediments overlying the original surface there.  Interesting.
> Meli Diamanti
>
> Graham wrote:
>> A short note to thank all those who responded to my query about  
>> dam/lake verge survey. I'm looking forward to having the time to  
>> dig into this topic. Thanks.
>>
>> Sincerely
>> GrahamK
>> .....................................
>> Graham Knuckey PhD
>> ARCHAEO Cultural Heritage Services,
>> 369 Waterworks Road, Ashgrove, 4060. Qld.
>> P.O. Box 333, The Gap, 4061. Qld.
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>> "This world is a great sculptor's shop. We are the statues and  
>> there is a rumour going around the shop that some of us are some  
>> day going to come to life.   C.S. Lewis.
>>
>>