maxxkatt
Forum Supporter
I read with interests Carol's sticky post on this sub-forum about coin sink rate. Over the years I have read many posts on this subject. So I recently googled "sink rate of coins metal detecting" and got quite a few posts/articles on the subject.
What did I learn from this further research?
Depends more on the soil conditions of where you hunt.
The amount of earth worms in your hunt area.
Number of earthquakes that may or may not liquify the soil in your area.
The amount of tree leaves and grass clippings deposited every year.
It seems that density of the metal has the least amount to do with how deep a metal object goes over time.
So my conclusion is you just have to hunt your own area and decide for yourself.
For instance in my favorite park along the river it has a sandy soil and we get heavy rains in the winter and summer.
So I have found tin cans over 15" deep.
pop tops and pull tabs in the 3-4" range with the ring pull tabs being slightly deeper.
Wheat pennies 3 - 7" deep. and a silver Washington quarter at 3" deep.
So there seems to be not hard and fast general rule.
I have seen in the many posts on this subject from four of the largest metal detecting forums and that many of the post contradict many of the other post concerning coin and jewelry sink rates.
But I still like to believe that in my hunting areas older coins are deeper than clad and all coins are typically deeper than pop tops and ring pull tabs. There are always many reported exceptions, but I base my hunting strategy with my CTX3030 on this general rule for my hunting areas.
Probably the most fascinating post/article is here if you wish to wade through what Charles Darwin had to say on the subject.
https://www.detectorprospector.com/...shell, coins and,materials build up over time!
scroll down to BigGuySky's post for the article.
What did I learn from this further research?
Depends more on the soil conditions of where you hunt.
The amount of earth worms in your hunt area.
Number of earthquakes that may or may not liquify the soil in your area.
The amount of tree leaves and grass clippings deposited every year.
It seems that density of the metal has the least amount to do with how deep a metal object goes over time.
So my conclusion is you just have to hunt your own area and decide for yourself.
For instance in my favorite park along the river it has a sandy soil and we get heavy rains in the winter and summer.
So I have found tin cans over 15" deep.
pop tops and pull tabs in the 3-4" range with the ring pull tabs being slightly deeper.
Wheat pennies 3 - 7" deep. and a silver Washington quarter at 3" deep.
So there seems to be not hard and fast general rule.
I have seen in the many posts on this subject from four of the largest metal detecting forums and that many of the post contradict many of the other post concerning coin and jewelry sink rates.
But I still like to believe that in my hunting areas older coins are deeper than clad and all coins are typically deeper than pop tops and ring pull tabs. There are always many reported exceptions, but I base my hunting strategy with my CTX3030 on this general rule for my hunting areas.
Probably the most fascinating post/article is here if you wish to wade through what Charles Darwin had to say on the subject.
https://www.detectorprospector.com/...shell, coins and,materials build up over time!
scroll down to BigGuySky's post for the article.
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