Frank Schnell, since retired from Columbus Museum in Columbus Georgia did a study of the effects of lake operations on I believe Lake Blackshear in southern Georgia. I do not know where to find a copy fo his study at this point, but you might try the NPS office in Tallahassee.

Pat Garrow

-----Original Message-----
>From: Timothy Scarlett <[log in to unmask]>
>Sent: Apr 25, 2007 9:14 AM
>To: [log in to unmask]
>Subject: Re: lake levels
>
>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
>[log in to unmask]
>(906)487-2359 (office)
>(906)487-2468 (fax)
>------------------------
>
>
>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.
>>>
>>> Office - (07) 3366 8488 • Mobile - 0427 007 278
>>> Fax - (07) 3366 0255 • E-mail - [log in to unmask]
>>>
>>> www.archaeo.com.au
>>> ___________________
>>>
>>> "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.
>>>
>>>