Remote Prospecting?

[Geowizard]

Jim,

A few important points that you make, every prospector should keep in mind. One is prospecting based on intuition and reading the lay of the land. The other is not giving too much weight on people like professors that make a statement without full knowledge of the facts. The statement that there's no GOLD between one point and another needs supporting evidence i.e. augering a close pattern of holes down to bedrock. The evidence we have today shows numerous discrete anomalies and many broad anomalies that certainly warrant further investigation. I will show some examples.

I have about half of the lines plotted and the anomalies light up real well!

- Geowizard

[Jim_Alaska]

Now that is really interesting Chuck. The survey lines must have been done since I was there, of course it has been almost thirty years. When I was trapping in the later years, I didn't go beyond Blackshell because another trapper had trap lines from there on up the valley. So the survey lines may have been there in my later years, but I had no way to know because I didn't go up there any more.

[Geowizard]

Jim,

Here's the survey:

(removed by request)

Here's a link to a mapper topo with hits.

(removed by request)

- Geowizard

[Jim_Alaska]

Well then, given that date I can say that at that time I was no longer going up there. A short three years later I left Alaska.

Middle Fork @ Ottertail Creek:

[Geowizard]

Jim,

Nice photo!

I haven't had my coffee yet, and I may be confused about your earlier point about the survey lines "being there" before or after you were there. The survey lines aren't physical lines - only lines on a map that show the path the helicopter flew.

The data was published the next year in 2000. I don't know why the State of Alaska hasn't been more proactive in getting this information out to prospectors and providing a level of understanding so prospectors can use this information. I realize also, this is "technical" and for many prospectors it may be hard to understand. Prospectors use metal detectors. This method of prospecting is the same thing but done using a helicopter. The purpose of doing the surveys is to give prospectors information on where to look.

The heads up for prospectors that have not been to this area is that apart from being remote, it takes a lot of stamina and fortitude to get through the trees and brush. As you have mentioned before, often the best way to go up into the hills is to follow the stream beds. That process can be difficult when the terrain turns every inch of progress into navigating an obstacle course.

- Geowizard

[Jim_Alaska]

Well, I have had my first cuppa and am on my second, but you are not confused, I am. Remember, I'm old school; when I talk about survey lines I am talking physical lines defined by brushing out claim lines on the ground. These are what I saw way back when I first mentioned survey, or claim lines when I was trapping and looking over into the Salcha from the ridgetops. They must have been done by the actual mining companies to comply with claim requirements.

So, when you mentioned survey lines from Blackshell to Teuchet, my mind immediately saw claim boundaries brushed out, which anyone on the ground would be able to physically see....my mistake and confusion.

[Jim_Alaska]

OK, now I am awake. In being awake and wanting to have something to do, I began reading this thread from its beginning. It is amazing that this thread has been going on since 2018. There is a LOT of information in this thread. But one little tidbit jumped out at me.

To clarify, in recent posts I have been talking about a creek I flew over many years ago that clearly had been dredged with a bucket line dredge and the actual dredge was still there where they left off in the head waters. I even mentioned that I had tried to find it on Google Earth to identify the creek. I didn't find it until this morning, but not on Google Earth, instead it was on this thread. I am getting old and forgetful and it looks like Chuck is also.

Way back on page 35 of this thread he made mention of an anomaly he found on Caribou Creek with bucket line dredge still in place. This is the creek I was looking for. Not that it matters in any present day endeavors, but I was just interested to know what creek it was on for my own information. Now I know, and this backs up the idea that forums and information that is posted on them are very useful tools for people doing research.

I should have remembered this information, it would have saved me the time of looking for it. But I am finding that my rememberer doesn't work like it used to.

[Slatco]

Jim/Chuck- I want to thank you for the wisdom on this thread and I regret that I am not based out of Alaska to put this to use. As it is, I am trying to take the info presented and see how I can apply the "remote prospecting" techniques to my own areas. Thanks again!

[Jim_Alaska]

Right on Slatco, a lot of the info on this thread can benefit miners and prospectors in many other places that are not so remote. Maybe not the geographically specific info, but certainly info about Ariel surveys, as well as a general idea about how to go about prospecting without having to walk over the ground to begin with. That is invaluable and saves a lot of time, money and effort.

[Geowizard]

Canada has led the way;

From the earliest days of prospecting, enterprising, innovative Canadians and the Canadian Government paved the way through invention and science to create the instruments that make modern Geophysics possible. Most of the companies that currently design and manufacture the equipment and offer the services are found in Canada.

Early-on Companies like Barringer and McPhar pioneered new technology to explore the Canadian Shield - a vast expanse covered by alluvial sediments.

Note also, Fugro, now CGG, a Canadian company performed the State of Alaska Airborne Geophysical surveys.

Canadian Patents provide a rich resource for learning about the methods and technology

http://www.cipo.ic.gc.ca/

Patent Search: https://www.ic.gc.ca/opic-cipo/cpd/eng/ ... atent-main


Provincial Governments have Publications and Open File Reports;

Examples:

Alberta:

https://www.ags.aer.ca

https://www.ags.aer.ca/document/OFR/OFR_2012_09.pdf

Saskatchewan:

https://www.nrcan.gc.ca/nrcan/geophysic ... 2020/22964

Ontario:

http://www.geologyontario.mndm.gov.on.c ... report.pdf


Canadian Society of Exploration Geophysics (CSEG);

BC:

https://csegrecorder.com/articles/view/ ... bia-canada

Companies:

Dun & Bradstreet listing: (BC)

https://www.dnb.com/business-directory/ ... umbia.html

Geotech: http://geotech.ca/

Abitibi: https://www.ageophysics.com/

MPX: https://www.mpxgeo.com/site/home

Phoenix Geophysics: http://www.phoenix-geophysics.com/home/about_phoenix/

Clearview: https://www.geophysics.ca/

That's just a few.

- Geowizard