Fissure detecting at the Delaware Mine

The Copperland team locates underground copper-bearing fissures at the old Delaware mine in Michigan's Keweenaw peninsula using methods both old & new: magnetic compass & Fisher Gemini-3 metal detector. - "Three fissures were developed to a considerable extent - the Stoutenberg, Delaware, and (Kelly) Hogan. The Stoutenberg was opened to the eighth level, the Delaware to the ninth level, and the Hogan to the fourth level... " - USGS Professional Paper 144 Butler & Burbank

[creativemetalworker]

Thanks so much for sharing such a wealth of knowledge and experience! I am a budding gold prospector and have gotten access to some properties in S. Oregon that are historically great gold producers, but now have a lot of overburden in the way. Does the Gemini-3 detect gold deep like it does copper and ferrous metals or is there another detector more suitable? Thanks so much:)

[Hotbeefsamich]

Thank you for sharing such an interesting piece of info. I recently have been fascinated with the history and geology of the copper country. Been going up every year finding some of the more obscure places to collect and always love seeing new things!

[DiggingCanuck]

Must say I have never seen anyone detecting with that sort of detector before !

[julie-ann]

I hope someday, to borrow your new gadget

[tristandelrosario]

thank you for sharing.. how to know the depth of the metal?

[noepaulolaurentino]

Quando tu passa por cima de pedra ferro enterrada. Tu consegue saber se e ferroso ou nao ferroso?

[lorenzboulevarder]

Hello, can this detector detect cavities?