Bret's Seismic Section from May 1995. The data for
the Seismic Section below was collected using 24 channel "Bison Galileo
20 bit Seismograph", with a software roll box and the Windows NT GUI.
You can see the fractures in the Limestone & Dolomite layers in the
Resistivity Pseudo Section and also in the Shallow Reflection Seismic Section
below. The very shallow reflection from approximately 4 ms
to 10 ms that is most clearly seen on the left side of the seismic
section is this shallow clay layer. This reflection is
probably the shallowest reflection ever profiled with 2D seismic reflection.
To me better detail can clearly be seen although from the above Resistivity
Pseudo Section. But valuable data can also be derived from seismic
sections like the one below. 
The 2D view below is a little different than the veiw
above. But it show the same thing. The Bedrock Valley is of
Ordovician times, and not the result of Glacier alluvial runoff as
some geo-scientists thought. The St. Peters SandStone into
which the valley was erroded is Ordovican. Meaning this is
a very old valley!
