Any Geologists, amatuer or pro, out there?

[OBJ]

Re: Any Geologists, amatuer or pro, out there?

JB....The National Geological Survey may be able to help.

 

[jsfinn]

Re: Any Geologists, amatuer or pro, out there?

Could www.usgs.gov help? Their headquarters is right down the street from my office. If you find something of interest, let me know. I'd be happy to pick whatever it is up and send it to you.

 

[JB]

Re: Any Geologists, amatuer or pro, out there?

Thanks, OBJ and jsfinn.<br /><br />I haven't contacted USGS before because both sites are in Canada.<br /><br />I think I ought to try them. Thanks

 

[rogerwa]

Re: Any Geologists, amatuer or pro, out there?

I'm no geologist, but one other potential cause is glacial potholes. There are other sites in Minnesota where the swirling runoff of the glaciers caused circular cutouts in the rock. Often these were very deep. The ones I have seen are much smaller and within the St croix river valley.

 

[jsfinn]

Re: Any Geologists, amatuer or pro, out there?

JB - didn't you say part of it was in Minnesota?

 

[JB]

Re: Any Geologists, amatuer or pro, out there?

Yes, jsfinn. <br /><br />Part of the lake is in MN, but the features I have noticed are both completely in Canada.

 

[jsfinn]

Re: Any Geologists, amatuer or pro, out there?

Gotch'ya. Maybe I should have looked at a map.