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Geowizard

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  1. Like
    Geowizard got a reaction from Akauhog in Ophir Placer Gold Mine - An Example   
    Additional images from late 2013:
     
    - Geowizard
  2. Like
    Geowizard got a reaction from Jennifer B in True Cost To Mine Gold - Companies Under Pressure   
    Mining News;
     
    "Barrick Gold Goes Lean and Mean"
     
    - Geowizard
  3. Like
    Geowizard got a reaction from Jennifer B in California Summer Gold - Digging In The Right Places   
    Would be nice to know where to find nuggets like those.
     
    - Geowizard
  4. Like
    Geowizard reacted to Eric N in Low Level Heating Ideas For Mine Buildings   
    If you are gonna be there every day, then consider using some thermal mass for heat storage and use a waste oil burner running hot to bring it up to heat.
    For thermal mass, use lots of rock and sand in a bin surrounding the stove.
    Make the bin out of salvaged sheet metal ducting.
     
    A buddy of mine worked in Valdez and they ran a waste oil burner at the shop.
    Running it hot resulted in cleaning the chimney every three, four weeks.
    Throttling it down forced a cleaning every few days.
     
    In one of my greenhouse I have a small vent-less propane heater needing no electricity.
    Locally propane is $21 for 4.5 gallons.
    Even though temps are just below freezing, I have to refill the 5 gallon bottle every couple three days.
    I would say not practical cost wise.
     
    Several years ago I got a small bunch of Healy sub-bituminous B and it held a fire overnight in my barrel stove.
    Only hassle was the amount of sand left over.
    Just don't let it get wet as it falls apart.
    Still, it's cheap and if it wasn't for the costs of transporting it, I would use it for everything.
     
    eric
  5. Like
    Geowizard reacted to chickenminer in Ditches   
    Miners working a bench along the Fortymile river, just below the mouth of Smith creek, had to  
    use a ditch and then a flume to carry the water from one side of the river to the other.
     Quite an engineering feat with shovels, axes and whipsaws !
     
     
  6. Like
    Geowizard reacted to Robert Thomasson in Don't Do This!   
    Chris, detectorists like you that have been detecting for many years were taught in the beginning to fill their holes. Now, there are so many people with detectors who haven't been taught and just don't care. Not sure what can be done about it, other than all of us taking a more vocal approach when we see people not filling their holes.
  7. Like
    Geowizard reacted to carter in Sampling Methods For New Placer Mine   
    thanx Steve and Geo,
     
    I am very familiar with the finger bits but on a very large drill, 100K lb.+ machine at a coal mine, ive drilled and been a welder rebuilding the bits. Can drill a 12 1/4" hole 140' in 12-15 minutes, and not have to change bit for a few days, thats drilling sandstone, but one 2ft layer of gravel with ruin the teeth on the bit which are cone shaped carbide. Typical bit has 9 teeth.
     My auger has the spiral center bit carbide, and the cutters are bolted on flat pieces, I may have to modify and use carbide tips, I just hope what works in gravel will do ok up out of the creek in the tundra because I bet it will be frozen clay just under the surface
  8. Like
    Geowizard got a reaction from Ronald C in Ophir Placer Gold Mine - An Example   
    Volume of tailings mined;
     
    I have mined several thousand cubic yards of tailings at Ophir.
     
    - Geowizard
  9. Like
    Geowizard got a reaction from Ronald C in Ophir Placer Gold Mine - An Example   
    Ophir 2015;
     
    I arrived early -  April 20th.
     
    The mining season usually runs June, July, August.
     
    So...
     
    Late August, things were cooling down to frosty in the morning - that's my signal to wrap it up. A few other placer operations try to work until "freeze-up"
     
    - Geowizard
  10. Like
    Geowizard got a reaction from Ronald C in Canals   
    Early miners used canals;
     
    - Geowizard 
  11. Like
    Geowizard reacted to Ronald C in Sampling Methods For New Placer Mine   
    How deep can one reasonably expect to drill with an auger?
  12. Like
    Geowizard got a reaction from Ronald C in True Cost To Mine Gold - Companies Under Pressure   
    The true cost depends on the amount of overhead that is used in the calculation.
     
    -Geowizard
  13. Like
    Geowizard got a reaction from Ronald C in What If   
    RotGrub,
     
    When I meet and speak with others in the outdoors, their agenda is as you point out - an obvious socialist agenda.
     
    - Geowizard
  14. Like
    Geowizard got a reaction from Ronald C in Sampling Methods For New Placer Mine   
    Augers are a low cost, efficient method of testing placer deposits.
     
    - Geowizard 
  15. Like
    Geowizard got a reaction from Ronald C in Sampling Methods For New Placer Mine   
    It really doesn't take much experience with an auger to learn the capabilities and limitations.
     
    - Geowizard
  16. Like
    Geowizard reacted to polardds in Ophir Placer Gold Mine - An Example   
    Geo,
     
    Since you already have the Bobcats, why not an auger for one of them?  I have found the auger attachment very useful and allot more powerful to get deeper than a hand auger, as long as access is appropriate for a skid steer loader.
  17. Like
    Geowizard got a reaction from Sampson Resouces in Gold Mirror Test For Gold   
    Basement Chemistry for the Prospector;
     
    Dr. A. K. Williams created a website devoted to understanding chemistry for prospectors. The website is/was called "Prospectors Paradise". www.prospectorsparadise.com
     
    The website contains many useful and informative pages including a page on "Halides". Although it doesn't address this topic directly, it will help in understanding the chemical process involved in using Iodine to extract gold.
     
    My understanding is that Doc Williams suffered a fatal concussion as the result of a fall in his home. He should long be remembered as a great writer that brought chemistry to a level of understanding for the average prospector.
     
    - Geowizard
  18. Like
    Geowizard got a reaction from Sampson Resouces in Large Gold Sand Deposit That Pays $8 A Yard - Worth Presuing?   
    $8.00 Deposit model;
     
    The large scale production required for $8.00 placer gold demands a large deposit.
     
    Considering the volume at 200 yards per hour and 2000 yards per day, to recover $1,000,000 profit on a $500,000 investment, at $10,000 per day net, makes the deposit size 100 x 2000 = 200,000 cubic yards.
     
    Note: Investment in capital equipment for mining leaves the equipment paid for and $1,000,000 in the bank.
     
    $8,00 x 200,000 = 1,6 million Gross revenue. $100,000 is paid out over the 100 day production campaign.
     
    - Geowizard
  19. Like
    Geowizard got a reaction from Ronald C in Extremely Fine Gold Recovery   
    You can float gold in a plastic water bottle.
     
    - Geowizard
  20. Like
    Geowizard got a reaction from JR BOI in Ophir Placer Gold Mine - An Example   
    When I got home last year, my dog didn't even recognize me!
     
    - Geowizard
  21. Like
    Geowizard got a reaction from Ronald C in World May Run Out Of Minable Gold In 20 Years   
    The definition of mineable will change over time.
     
    - Geowizard
  22. Like
    Geowizard got a reaction from Peter Freedman in "currently Mineable Grade"   
    "Qualified Person";
     
     
    Prospecting eventually leads to mining. Prospecting by its very nature represents exploration. Exploration seldom has a profit motive.
     
    - Geowizard
  23. Like
    Geowizard reacted to John I in Prospecting 101   
    Your probably a prospector if:
     
    All your outdoor photography consist of pictures of the ground and interesting geologic features.
     
    The only pictures you take of people are when their holding, or standing next to something mineral in nature.
     
    You ask your partner to drive so that you can study the road cuts that you pass by.
     
    When watching a movie, and they pan the camera to a stream or river, your first thought is "I wonder if there's gold there".
     
    You find yourself panning down the concentrates....... of your cereal bowl.
     
    You day dream about new and interesting ways to move and clean rocks.
  24. Like
    Geowizard reacted to johnedoe in Ground Penetrating Radar   
    Well gee if it was on Gold Rush it must be useful..... about as useful as the useful idiots on that program......
     
    I have to agree with Geowizard.... get and learn how to use a good metal detector. VLF or PI.... both have their place in prospecting.
  25. Like
    Geowizard reacted to johnedoe in Hand Held Gps   
    Remember the fancier it is the more battery hungry it is... color screens take a lot of juice. I have an older Magellan with a monochrome screen, it's accurate and pretty conservative with the batteries.
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