Histarchers,
I asked my brother about this; he's an earthquake geologist with the USGS
in Menlo Park, CA. This is his reply to this post:
*"Yep, some folks here used to (still do) that kind of exploration...You
use variations in the earth's mag field and or induced currents form
lightning or artificial current though the ground to measure electrical
resistance and magnetic susceptibility of the ground. Obviously a body of
copper/gold/sliver would be highly conductive and you would be able to
discriminate it from non-conductive country rock.*
*If the wires are thin copper and insulated or a very thin (few mm diameter
rubber tubing), I would not mess with them. They might be the kind I
sometimes use in my work..."*
My brother and his team often conduct geophysical operations that generate
acoustic energy using low-impact explosives placed in shot-holes which have
been drilled by truck-mounted drills. What he's saying is that you should
be careful around them.
Linda Hylkema, RPA
*Director, Cultural Resource Management, Santa Clara University*
W: *408-554-4513* | C: *408-219-5748* | Ricard Observatory | 500 El Camino
Real, Santa Clara, CA 95053
[log in to unmask]
On Thu, Nov 17, 2016 at 5:20 AM, Richard Lundin <[log in to unmask]>
wrote:
> Hanna:
>
> The wire MAY be either CSMAT or AMT ground conducting wires for geophysical
> surveys. If the wires and the aggregate-filled pit is in southern UTAH or
> the Arizona Strip, I would think it is from the 1980's through 2008 when
> there was a lot of Controlled Source Audio-Magneto Tellurics (CSAMAT) or
> Audio-Magneto Tellurics (AMT) surveys being done for Cu-U Breccia Pipe
> exploration. Wondjina Research Institute (WRI) was involved with CSM
> archaeological\pXRF geochemical surveys in those areas to support these
> types of geophysical studies during that period and is VERY FAMILIAR with
> their operations.
>
> The pit and the buried wires would be used to detect OR generate Very Low
> Frequency (VLF) signals generated by, respectively, CSAMAT generators OR
> natural electrical currents from thunder storms.
>
> You should check on who had mineral claims in the area and what they filed
> with the Counties and the Land Agencies for Assessment Work. That
> information will give you the name of the geophysical contractor(s) that
> did the work.
>
> I hope that this helps!
>
> Feel free to call me at the Confidence House office number below, if you
> have any further questions.
>
> Sincerely,
>
> Richard J. Lundin, BA, MA, RPA, ISAP, AIPG
> Mineral Exploration Consultant, Professional Geologist (AIPG) & Permitting
> Specialist
> Registered Professional Archaeologist (RPA) & Remote Sensing Specialist
> (ISAP)(Airbourne & Archaeogeophysics)
> Director, Wondjina Research Institute
> President & CEO, RICH ORE Mining, Inc.
> President, Wombat Mining & Exploration Co,
> Geologist & Agent, Oro Grande Mining Co.
>
> Confidence House
> 22510 Confidence Rd.
> Twain Harte CA 95383
> (209) 586-5632
> [log in to unmask]
>
>
>
> On Wed, Nov 16, 2016 at 9:19 PM, Hannah Russell <[log in to unmask]>
> wrote:
>
> > Hello,
> > I'm trying to ID some mining related features. Please see
> > https://goo.gl/photos/fvaNxV2vSmRVBW1e6
> >
> > The first two pictures are of the same type of feature. There were four
> of
> > these on one site. The features consist of two non-ferrous metal wires
> > coming out of the ground. The wires are surrounded by hundreds of small
> > gravels. Around some of the wires, in addition to the gravels, the soil
> is
> > discolored. There were no associated historical artifacts so I can't
> give
> > a date range unfortunately.
> >
> > The third and fourth pictures are of the same feature. One picture is
> the
> > best eye level picture I could take, the other is satellite imagery of
> the
> > feature. It is eroding down slope, but as you can see it's a fairly
> large
> > area (aprox. 2 meters by 5 meters). The soil is discolored and void of
> any
> > vegetation. There are some larger sandstone slabs around the edge of the
> > discolored area. The artifacts around the feature suggest a date range
> > between the 1910's to 1930's.
> >
> > These mining features are in southeast Utah, and this project area and
> its
> > surrounds have been mined for uranium and to a much lesser extent (only
> > because this is Charlie Stein country) gold and silver.
> >
> > Can anyone give me an idea of what's going on here? It seems to be some
> > sort of prospecting activity, but I can't say much beyond that.
> >
> > Thanks so much!
> >
> > -Hannah Russell
> >
> > On Mon, Apr 25, 2016 at 12:36 PM, LISTS.ASU.EDU LISTSERV Server (16.0) <
> > [log in to unmask]> wrote:
> >
> > > > OK
> > > Message successfully approved.
> > >
> > >
> >
> >
> > --
> > Hannah Russell, RPA
> > Cottonwood Archaeology, LLC
> > [log in to unmask]
> > (435) 210-0414
> >
> >
> >
> > --
> > Hannah Russell, RPA
> > Cottonwood Archaeology, LLC
> > [log in to unmask]
> > (435) 210-0414
> >
>
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