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Jeff Poling wrote:
>    Are these definitions correct?
>    lacustrine, adjective, describes a sedimintary deposit laid down by a
> lake.  Lacustrine deposits are often comprised of limestone, such as the
> Solnhofen and Liaoning lacustrine deposits
        Having just returned from Laioning, I can say that these are 
almost certainly lacustrine deposits.  However, there is not a bit of 
limestone anywhere in them.  The deposits do not resemble Solnhofen 
(except in color) in the least, especially as Solnhofen is currently 
intepreted more as a tidally influenced, lagoonal environment rather than 
a lacustrine environment.  The site near Beipaio in Laioning is much 
comprized of sediments that are much closer to typical lacustrine facies, 
which generally rarely include extensive carbonates.


Josh Smith
Department of Geology
University of Pennsylvania
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240 South 33rd Street
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