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geowizard
21:11:29 Fri
Dec 20 2013

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Exploring with Shawn Ryan

One thing that we can all do when the chips are down is learn more about how to do it right.

http://www.youtube.com/watch?v=jqywKbPaGK0

- Geowizard
[1 edits; Last edit by geowizard at 21:16:46 Fri Dec 20 2013]

  
geowizard
21:18:22 Fri
Dec 20 2013

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Re: Exploring with Shawn Ryan


  
baub
21:46:00 Sun
Dec 22 2013

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Re: Exploring with Shawn Ryan

Interesting. Sample, sample, sample. Eh?

  
JOE_S_INDY
22:32:40 Sun
Dec 22 2013

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Re: Exploring with Shawn Ryan

Yes, Bob,

Either spend big bucks or do it your self sampling.

My scale mining means that I do it myself.

Really big scale (or owner under-able to do it) means to just outsource it.

Joe




---
Wiser Mining Through Endless Personal Mistakes
 
 
geowizard
01:27:10 Mon
Dec 23 2013

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Re: Exploring with Shawn Ryan


I agree with Joe. :confused:

Drill... Drill... Drill... or Sample... Sample... Sample...

Although Ryan is proving in a "system" or large gold deposit, his example should be taken as good advice to us all.

Ryan ran samples along grids but also ran samples along ridges and creeks. The result of thousands of samples was a view of a larger deposit that was the source of the placer gold. He just received 2.5 Million as his final payment on the buy-out of his claims. I would also add, he was dropped by a couple of Juniors (lessees) because of the recent downturn.

He used GPS to document the locations. The samples cost $30 for rock samples and $25 for soils to get a 32 element ICP assay per their technical report.

- Geowizard

  
baub
20:47:07 Tue
Dec 24 2013

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Re: Exploring with Shawn Ryan

I've followed the idea that if I can't see the gold in a careful collection and sampling regime, I can't recover it with the standard gravity methods I use.
If I suspect that these methods are missing gold or if I have a hunch about something, I send it off, usually to Chris Christofferson in Smelterville, Idaho for a fire assay or multielement scan.
There is an area that I want to explore at greater intensity next year with this style of sampling. Perhaps modifying it with a higher percentage of fire assays if I can afford it.
I brought 30 some samples back with me from this years efforts and will be pulverizing and more carefully panning some of the sample and saving the rest of the sample for potential fire assay. The main difference is more careful panning.
Geo had mentioned in an earlier post about using large samples and concentrating them, then use a leach, followed by a drying of the pregnant leach which would reveal any goodies.

b

  
geowizard
21:55:30 Tue
Dec 24 2013

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Re: Exploring with Shawn Ryan

Baub,

Free gold - i.e. most placers that as you say, you can see the gold is straight forward. You run a measured amount of gravel, recover the gold in a sluice, weigh the gold and calculate the amount of gold per cubic yard - if that's your unit of measure.

Leaching is done on low grade - high volume gold and silver operations that "qualify". Leaching is not always appropriate. There are conditions that must be considered.

The third type of gold or silver is refractory that can be smelted into a marketable product. This type of deposit warrants fire assay. (not always free gold)

Multi-element ICP assay is more complete. The question is a matter of what you need to know. Are you looking for everything or are you only looking for gold?

The scale of your ambition is a factor. If you intend to remain small scale and the gold is ever-present to the degree you want. Then there isn't much point in doing a lot of sampling.

The only point to take away from all of this is; you can get organized and do large scale mapping and sampling of a deposit. The results may define a deposit that can be marketed to a major mining company.

- Geowizard
[1 edits; Last edit by geowizard at 21:56:47 Tue Dec 24 2013]

  

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