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Southern Nevada with GMT?


Idaho Jim

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Hey guys, I'm heading for the Searchlight area Monday...probably get there Tuesday night. I'm going to be doing some rockhounding, but thought I'd take a detector with me. I can take either the GMT, or the TDI-SL. Just wondered if the GMT will work OK down there, or if the mineral background is too high for a VLF?

Many thanks,

Jim

Edited by Idaho Jim
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That sounds good to me. I like using the TDI, but there's no question the GMT is superior as long as the ground minerals aren't too bad. The GMT runs a lot longer on a charge, too. Appreciate the info.

Jim

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7 hours ago, Au Seeker said:

Jim why not take both detectors??

I hate to carry a detector in the bed of the truck, and the cab is going to be full of other gear. Even with just the GMT, I'm still going to look like a traveling flea market...LOL

Jim

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LOL, Been there.   With some Slight Disassembly you can fit one of them under the seat !  A Joke Son, A Joke !

 

 

 

Sheeeeeeeee.   I bet he looks under the Seat !   LOL

Edited by homefire
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Yup...if I see a guy out in the wilds, and he claims he's a prospector, but his outfit is neat, clean, and organized, I know he's more of a poser than a serious prospector...LOL.

Jim

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Thanks, Chris. I'll update on here when I get home, or possibly from Searchlight in a week or so.....I'll probably need a trip to town to wash some clothes, and maybe myself, by then. Should be able to find a wi-fi somewhere in Searchlight. I'm going to camp in the Eldorado Valley, about 50 miles south of LV, somewhere along the powerline rd.

Jim

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I've heard rumors of some nuggets in that area, but I've also heard that it is a load area, without much Placer. But there is a lot of interesting ground out there. Good luck

Chris

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Jim, the GMT will work very well there. Try a gain of 7 and an SAT setting of 7 for most areas. Wet alkaline ground may require lesser gain and/or higher SAT. If you don't mind the "angry bee" threshold then using the audio boost ON will help get those really small pieces. Hope this helps: HH Jim

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Well, I didn't have any success. Ended up taking both detectors, and I needed both as it turned out, and Jim M. your settings are spot on. I left before you posted, but those settings on the GMT are exactly where I ended up.

My main reason for going was running down an old story about diamonds in the McCulloughs. I was mainly looking for kimberlite-indicator minerals. I didn't find any in the areas I looked at. But, i'll go back next winter. I only got in about 6 days of prospecting...the weather kept me in the camper for several days. Lots of rain. My best find was an old leghold #3 Victor trap. I hiked into McCullough Spring, and took a shortcut, and found the trap on the edge of a drywash, about a mile from the road into the spring. A big problem with that country is lack of access. It's illegal to do any offroading, and the base of the mountain range is 1-3 miles from the powerline road that runs down the valley. So, you're going to backpack at least 2 miles just to get to the base of the range. I'm 68 years old, and still pretty fit and tough, but my limit now is about 6 or 7 miles/day, and i can't do that every day...I need to do a short day to rest up between long days. Climbing mountains doesn't get easier with age...LOL. Some of the area south of McCullough Pass probably gets very little human activity because of the poor access......hiking 3 miles, and then 3 miles back makes for a really long day, and then the actual hiking into the range adds to that. It's a shame that the Feds have effectively locked that country up. I know some people get to the base of the mountain by riding ATV's up the dry washes, but it's illegal, unfortunately. I may try that next year, now that I know what I'm facing.

I did see 3 sheep, and saw several sets of cattle tracks....I assume they're wild as I don't think they allow grazing in there anymore. You aren't even allowed to take horses in there. I saw no reptiles of any kind, and few other critters.. a few birds, and a couple of ants...not much fauna at all....probably because it's winter. The snow level got down to about 4,200', and there were icicles hanging from the rocks at McCullough Spring. Highs were mostly in the lower 40's at 4,000' I did bring home some nice mineral specimens. I was surprised how few fluorescent minerals there were.

Jim

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Thanks for taking the time to write a report. I grew up in Boulder City, and remember hearing a story about a prospector finding diamonds in his pan south nearby the Colorado River. I definitely think it is an interesting area.

Chris

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Yup, Chris. It is interesting. Most kimberlite pipes are in the precambrian age, and the whole southern McCulloughs are precambrian rock, so it fits. But, that doesn't mean there are diamonds there, but the story says there could be. I wish I could stay down there longer, but I hate to leave Chris home alone to deal with all the snow issues by herself. it's been especially bad this winter

Jim.

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Best of luck..! There's far more "dry" kimberlite (and lamproite) pipes than "wet"..
Here's hoping the story's 'could be' turns out to be 'are'..

Swamp

Edited by Swampstomper Al
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Jim,

  There use to be an old Diamond mine next to the Hacienda Hotel and Casino, near Hoover Dam. It was right across the road from the Hacienda, in a black hill, you could find small miniature diamonds.

Dave

Edited by DolanDave
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Thanks, Al. You're right about the small chances of finding a "wet" pipe. But the old story was the prospector found diamonds at a pipe. Also, the pipe was kimberlite, or at least blue/gray, which probably means K.

Dave, that's interesting about tiny diamonds near HD. There's lots of very dark precambrian rock in the McCulloughs. In most cases, kimberlite pipes come up in groups...generally in line along a fault. It's possible the diamonds at HD are from the same deep source as the diamonds in the McCulloughs. Also, after I got home, I was perusing that country using Google Earth, and realized I'd walked within a 1/2 mile of an old gold lode mine. I'd seen it before, but forgot while I was down there. I'd have really enjoyed using the GMT around that site. It's going to be a long year imagining what I could have found there, and waiting for another chance...LOL

Jim

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