|
geowizard 23:36:55 Sun Sep 16 2012 |
Anyone interested in Geophysical Anomalies at Moore Creek? Why didn't Full Metals find the source of all those big gold nuggets? Anyone interested in mining at Moore Creek? - Geowizard |
|
geowizard 00:52:06 Mon Sep 17 2012 |
 Image courtesy Alaska DNR DGGS GPR 2011-2 This zone runs parallel with Moore Creek along the north west bank. The map shows resistivity of the rock formations. Low resistivity is associated with highly conductive mineralization. The lower the numbers, the more mineralization. |
|
growler 01:05:50 Mon Sep 17 2012 |
|
|
geowizard 02:27:03 Mon Sep 17 2012 |
In 2009, a friend of mine (KP) detected a 32.2 ounce nugget at Moore Creek. You can see it at www.moorecreekcamp.com . Gold mining is expensive business. The rewards for discovery can outweigh the cost. A flight from Anchorage to McGrath is $230. and a charter out to Moore Creek would probably run $400 to $450. The charter can be split with several others and run $100 to $125 a piece. BTW, I happen to own the claims on this stretch too. |
|
overtheedge 05:30:10 Mon Sep 17 2012 |
eric |
|
geowizard 14:09:58 Mon Sep 17 2012 |
The short answer is; electromagnetic induction. It's the same concept used in metal detectors. There are many companies that perform this service. How it works: A transmitter coil is energized with an AC current. The transmitter coil radiates an electromagnetic field. In the case where conductive minerals are present, a secondary eddy current is generated. The eddy current creates a "secondary electromagnetic field". The secondary electromagnetic field combines with the primary electromagnetic field. The result is a "measurable change" in the resulting electromagnetic field when compared to the primary electromagnetic field. The measurable change is directly related to the conductivity of the earth. So, the measurable change is measured in a receiver and that data is stored in a computer along with GPS position. This equipment uses several different frequencies. The lower frequencies can measure deeper. The higher frequencies measure surface (surficial) conductive mineralization. So, the equipment can differentiate between surficial and bedrock measurements and provide important information about the source of the conductivity. The map shown above was produced from low frequency (900 Hz) and therefore shows deep bedrock mineralization at Moore Creek. The other frequencies as shown on other maps also show the mineralization near the surface. It was postulated by Buntzen and others that the source of the gold at Moore Creek was "in the benches to the southwest" along Moore Creek. This proves that was true. :smile: link: http://www.fugroairborne.com/services/geophysicalservices/bysurvey/electromagnetics/helicopter-electromagnetic/resolve |
|
geowizard 19:16:45 Sun Oct 21 2012 |
As mentioned above, in this thread, I have been working on determination of the source of gold mineralization at Moore Creek. First, it is important to realize that the Iditarod - Nixon Fork (INF) fault zone is 113 miles long and runs through Moore Creek. The INF is responsible for most of the gold mineralization along the fault trend. The MOST conductive mineralization along the surveyed portion of the INF is within 1.2 miles of the camp at Moore Creek. From the data, the mineralization extends from 6 ft to a depth of as much as 200-300 feet. Measurement of the width of the mineralization is 1700 to 2000 feet and it runs along strike 20,000 ft. A report is being prepared by a Registered, Certified Geophysicist (Qualified Person) for NI 43-101 purposes. - Geowizard |