soil

This may be silly but I have no idea what causes this and it is just so odd. Some will have weird looking pieces in it or round holes where pieces are gone. It's all wavy and there is a lot of this red in most. I assume from the clay. I'm just curious. If anyone can offer ideas, I would love...

I need some help/advice in metal detecting the low country soil around Charleston, South Carolina. I spent the last couple of days searching my parents’ property with poor results. The soil characteristics are: • Sandy with some organic matter, • The moisture content is low (not dry) (0 =...