A couple of articles sent to me by Don:
Salt deposits, July, 2012, article:
https://www.dmr.nd.gov/ndgs/newsletter/2012%20JULY/Impact%20of%20the%20Dissolution.pdf
Sand and gravel, July, 2012, article:
https://www.dmr.nd.gov/ndgs/newsletter/2012%20JULY/Sand%20and%20Gravel%20Resources.pdf
These articles and articles like these are archived under the "Geology" tab at the top of the blog.