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Joined: Dec 2005
Posts: 7
Junior Member
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Junior Member
Joined: Dec 2005
Posts: 7 |
I have a small pond on my property and recently I had access to a backhoe so I decided that I would do some cleanup in it while it was dry. I came across some layers of soil that were white and when dug up it would break into chunks. Any idea what this might have been. It is not limestone to my knowledge. It was almost like a mold of some kind.
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Joined: Mar 2005
Posts: 22,033 Likes: 483
Moderator Hall of Fame 2014  Lunker
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Moderator Hall of Fame 2014 Lunker
Joined: Mar 2005
Posts: 22,033 Likes: 483 |
It could be chalk which is a type of limestone and is often found around other limestone deposits. See these links. Most states have geologic maps of surface soils and deposits by location. http://en.wikipedia.org/wiki/Chalk http://en.wikipedia.org/wiki/Chalk_Formation
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Joined: Apr 2002
Posts: 1,892
Lunker
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Lunker
Joined: Apr 2002
Posts: 1,892 |
Might be an old layer of bentonite.
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Joined: Mar 2004
Posts: 3,075
Lunker
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Lunker
Joined: Mar 2004
Posts: 3,075 |
Mercury,
We have the same thing, I think. I found some of it when renovating an old pond. I believe it is limestone in a "cake" form. There is a vein of this stuff nearby which the County digs and uses for our road surface. It's good stuff if that is what you have.
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