Neat tool for finding lode gold deposits
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  1. #1

    Jan 2008
    246
    268 times

    Neat tool for finding lode gold deposits

    Here's a handy little USB FLIR imaging system for ya for $399 that you plug into your Android or Apple cell phone:

    http://www.newark.com/MarketingProductList?orderCode=18AC1044,18AC1045,1 8AC1046&CMP=e-email-Buyer-220518-NA-FLIR-HERO&et_cid=30021452&et_rid=1237137972&cmp=

    I used to have a USB Thermal Camera like this that one of my son's friends felt he needed it more than I did )<:

    Oh well at least next time I have the money I can move up to a FLIR thermal imager-mo betta! Ok, so you're wondering how in the Sam Hill (that was the original expression FYI) can you use a thermal imager to find a lode deposit? Easy (compared to the alternative), you wait till a time in either spring or fall where the daytime temps are say in the 80's but then it cools off quickly as the sun goes down. Then you drive around an area that the geological reports show has promise for a lode deposit or where other lode deposits have been found. The surrounding country rock will cool off much quicker than the host rock with the metallic deposit and you will see the temperature difference on the screen.

    I never got around to using mine unfortunately so I depended on my Gamma Spectrometer which I located a mine in Little Tujunga Canyon. Was kinda hoping to take the Thermal Imager up to Texas Canyon as there's one spot where gold flakes and nuggets drop into from the hill above. Someday.....
    Beav, Hoser John, russau and 1 others like this.

  2. #2
    us
    Hardrock prospector

    May 2017
    Middle Oregon
    Whites, Fisher, Garrett, and Falcon.
    1,372
    444 times
    Prospecting
    The corporate office is in Oregon. The police use this camera also to find persons trying to hide.

  3. #3
    us
    Retired

    Mar 2015
    Texas
    471
    641 times
    Won't work. Not enough temp difference as the two rock types are in intimate contact and the diffusion of heat will prevent significant differences from being noticeable.
    This ain't Michigan, its GOLD COUNTRY!

  4. #4
    us
    Jul 2012
    Albuqerque, NM / Durango, CO
    Garrett Infinium & Gold Bug II, Bazooka Super Prospector Sluice
    2,377
    2474 times
    All Types Of Treasure Hunting
    You can't use thermal imaging to find lode gold

  5. #5
    zw
    Jan 2015
    144
    156 times
    All Types Of Treasure Hunting
    Have tried thermal and has only worked for me with large metal objects very close to the surface after a hot summers day and no cloud cover. It was however not a great camera

  6. #6

    Jan 2008
    246
    268 times

    Thermal Imaging Technique

    PCZIM,that would be about right. I'm trying to remember where I saw the article that mentions this as a new method. I want to say that it was one of Action Mining's publications on Prospecting Methods. Yes it would work only specific conditions such as a solid vein of gold in the type of host rock that is more of an insulator than a conductor of heat. Definately not for Lode gold that is disseminated through the rock as particles. I'd like to hear SaltwaterServ's experience from which he speaks. That counts in my book otherwise it's all conjecture from start to finish and academic. I just wish I could remember who wrote about this theory as I would like to write them and hear their experiences with this technique (show me the gold!). Hey if nothing else, thermal imaging is the hot ticket for us "Midnight Miners" to see who's watching us out there!
    Last edited by Seden; May 28, 2018 at 02:11 PM. Reason: incorrect spelling
    Hoser John likes this.

  7. #7
    us
    Nov 2011
    XP Deus
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    All Types Of Treasure Hunting
    Hi Randy, yeah dry sandy soil is best.

    I have a thermal camera in the yard just before dark. I found a rectangle-shaped hot spot and I thought it must be a piece of sheet metal, maybe copper. So I put my hand down to see if i could feel anything---dog urine! LOL
    Last edited by signal_line; May 28, 2018 at 02:31 PM.
    arizau and Clay Diggins like this.
    Love transcends this world we live in to Heaven.
    I'll leave it to you to figure out where the opposite goes.

    If your heart is in it you will find a thousand ways to achieve your goal.
    If your heart is not in it you will find a thousand excuses.

    Ouija Board and map dowsing , one and the same. Just tape a map onto the Ouija Board and you have map dowsing.
    Works great if you like wild goose chases and snipe hunts!

    L-rods are obsolete.

    May you never take one single breath for granted.

  8. #8
    Charter Member
    us
    Nov 2010
    The Great Southwest
    3,530
    10249 times
    Prospecting
    Gold transfers heat better than just about anything else found in the earth but silver and copper. 6 times more heat conductive than steel. What that means in a practical sense is that gold will always be very close to the same temperature as the surrounding rock no matter how thick the vein might be.

    There are some new helpful technologies in prospecting for gold but heat differences aren't one of them.

    Heavy Pans
    Last edited by Clay Diggins; May 28, 2018 at 08:19 PM.

  9. #9
    Charter Member
    us
    Period Six Mining and Exploration, LLC

    Aug 2010
    Southeast Arizona
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    Quote Originally Posted by Clay Diggins View Post
    Gold transfers heat better than just about anything else found in the earth but silver and copper. 6 times more heat conductive than steel. What that means in a practical sense is that gold will always be very close to the same temperature as the surrounding rock no matter how thick the vein might be.

    There are some new helpful technologies in prospecting for gold but heat differences aren't one of them.

    Heavy Pans
    Someone's ALWAYS trying to mine the miners.
    UncleMatt, Clay Diggins and RTR like this.
    Mining is how I make my living. I turn mountains into dust on a daily basis.

  10. #10
    Charter Member
    us
    Period Six Mining and Exploration, LLC

    Aug 2010
    Southeast Arizona
    2,966
    4345 times
    Prospecting
    Quote Originally Posted by Seden View Post
    PCZIM,that would be about right. I'm trying to remember where I saw the article that mentions this as a new method. I want to say that it was one of Action Mining's publications on Prospecting Methods. Yes it would work only specific conditions such as a solid vein of gold in the type of host rock that is more of an insulator than a conductor of heat. Definately not for Lode gold that is disseminated through the rock as particles. I'd like to hear SaltwaterServ's experience from which he speaks. That counts in my book otherwise it's all conjecture from start to finish and academic. I just wish I could remember who wrote about this theory as I would like to write them and hear their experiences with this technique (show me the gold!). Hey if nothing else, thermal imaging is the hot ticket for us "Midnight Miners" to see who's watching us out there!
    We've explored just about every method out there on finding gold. I can tell you from personal experience (I owned and operated a core rig) that if you want to find gold you either go where gold has been found before or you drill likely looking spots. There is no other way.

    There was a gentlemen here before that was trying to predict where gold was based off of topo maps before. He told me that gold was supposed to be in an area I drilled before. Nothing there but 700 feet of Gila Conglomerate that held nothing. Lost 200+ feet of drill string there too. Try explaining that to the wife.

    Someone will always try to mine the miners. Been that way for a long time and I suspect it will be that way for a lot longer.
    Clay Diggins likes this.
    Mining is how I make my living. I turn mountains into dust on a daily basis.

  11. #11

    Apr 2015
    201
    558 times
    All Types Of Treasure Hunting
    You mentioned Texas Canyon, Cochise County?

  12. #12
    us
    Nov 2011
    XP Deus
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    All Types Of Treasure Hunting
    Gold has a low emmissivity so it catches heat and holds it better. But the problem of damp/wet ground is conductivity. Sand (dry) is somewhat of an insulator. Sunlight IR waves can only penetrate the ground so far. Don't have a number but only a few feet. All in all, not too good a way to find treasure, but better than the digital camera by a long shot. LOL
    Love transcends this world we live in to Heaven.
    I'll leave it to you to figure out where the opposite goes.

    If your heart is in it you will find a thousand ways to achieve your goal.
    If your heart is not in it you will find a thousand excuses.

    Ouija Board and map dowsing , one and the same. Just tape a map onto the Ouija Board and you have map dowsing.
    Works great if you like wild goose chases and snipe hunts!

    L-rods are obsolete.

    May you never take one single breath for granted.

  13. #13
    Charter Member
    us
    Nov 2010
    The Great Southwest
    3,530
    10249 times
    Prospecting
    Quote Originally Posted by signal_line View Post
    Gold has a low emmissivity so it catches heat and holds it better. But the problem of damp/wet ground is conductivity. Sand (dry) is somewhat of an insulator. Sunlight IR waves can only penetrate the ground so far. Don't have a number but only a few feet. All in all, not too good a way to find treasure, but better than the digital camera by a long shot. LOL
    Unpolished raw gold has virtually the same emissivity coefficient as granite, sandstone and most other country rock. In contact with country rock, as lode deposits are, it will exhibit the same temperatures as the rock it's found in within a very tight range.

    A low emissivity coefficient is only exhibited by gold when it's pure and highly polished, not conditions you will find in natural gold deposits.

    Gold is hydrophobic so the water content isn't a consideration in heat transfer. Essentially gold will reach and maintain the temperature of any material it's in contact with very rapidly no matter what the moisture content.

    Gold is nearly 100% reflective in the infrared range. There is effectively no penetration of gold by infrared. Even a 1 micron coating on thin plastic reflects nearly 100% of infrared wavelengths even though the coating is translucent to visible wavelengths. As the IR frequencies go up gold reflectivity of those IR waves goes up too and comes even closer to being 100% opaque to IR. That's why all those satellites, space rocket parts and astronauts are wrapped in thin gold plated plastic sheets. Gold is one of the best insulators for virtually all types of high energy radiation.

    Any way you look at it heat differentials in infrared or any other form of optical investigation will not distinguish gold from it's associated minerals while still in the ground on the basis of temperature. Additionally not all digital cameras optical receptors are sensitive to infrared. Usually the manufacturer puts an inline infrared filter into the camera optics to block unwanted imaging from the invisible wavelengths. Users tend to get upset when infrared emissions unexpectedly lighten or put a halo around ordinary objects in the picture.

    There are methods of finding lode gold that have been very successfully proven over thousands of years. Nothing wrong with investigating new ideas or methods but if those methods go against the laws of physics they are doomed to fail. Work harder, work smarter but in the end run there is no magic method to find gold with remote sensing. You still need to get down into the rock and dirt to find gold.

    Gold is rare, valuable and hard work to recover when you do find some. That's why it is still out there for you to find. Go get u sum!

    Heavy Pans

  14. #14
    us
    Retired

    Mar 2015
    Texas
    471
    641 times
    Quote Originally Posted by Seden View Post
    PCZIM,that would be about right. I'm trying to remember where I saw the article that mentions this as a new method. I want to say that it was one of Action Mining's publications on Prospecting Methods. Yes it would work only specific conditions such as a solid vein of gold in the type of host rock that is more of an insulator than a conductor of heat. Definately not for Lode gold that is disseminated through the rock as particles. I'd like to hear SaltwaterServ's experience from which he speaks. That counts in my book otherwise it's all conjecture from start to finish and academic. I just wish I could remember who wrote about this theory as I would like to write them and hear their experiences with this technique (show me the gold!). Hey if nothing else, thermal imaging is the hot ticket for us "Midnight Miners" to see who's watching us out there!
    Knowledge of physics and basic metallurgy is my experience. I can also tell you that despite having an atmosphere, you can't survive on Venus. What's my experience to show that particular piece of knowledge is correct?

    Either way, Clay did a perfect explanation of the physical properties of why a FLIR camera or any other IR magnification device is like trying to empty an Olympic pool with a thimble when it comes to finding gold. Same funds invested in a proper detector or geology classes will lend you better results.
    Clay Diggins and Goldwasher like this.
    This ain't Michigan, its GOLD COUNTRY!

  15. #15
    us
    Jul 2004
    Angels Camp,Ca.
    779
    751 times
    Estwing sampling pick,sample bags...sweat and freeze your butt off in a known gold district is the best way to find lode gold.Realistically no one is looking to develop a gold mine..it's fun just to find an occasional pocket or specie.
    Clay Diggins likes this.

 

 
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