Buried Gold at Moore Creek!

[Geowizard]

Fissure veins;

Geological Models for Gold deposits always include a "conduit" for Gold to rise to the surface. Gold originates at various depths in the crust of the earth. There are exceptions where gold is found at the surface. Those cases are usually known to have originated at depth and the Gold was transported or exposed through erosion.

Fissures are literally cracks in the crust of the earth. Fissures provide a conduit for hydrothermal fluids to escape under high temperature and pressure to the surface. Fissures deserve their own thread! Suffice it ti say, these cracks form a conduit and in certain areas they produce Gold via hydrothermal (think geysers) activity during certain periods in Geologic time. As the fluids carrying Gold in solution rise to the surface, the solutions precipitate Gold similar to formation of snow creating all forms of flakes, nuggets and fine Gold! In extreme hydrothermal events, Gold is blown out into the surrounding area!

Stick around, there's more!

- Geowizard

[Geowizard]

Iditarod Nixon Fork Fault Zone:

Alaska has fault zones of every size ans description. Fault zones are created by movement in the earth that under extreme force, create fractures that move open and close along their length as well as move vertically and longitudinally. Faults are on form of "structure" known to Geologists. Fault zones are sought after by prospectors looking for Gold! You got it!

Fault zones are known conduits for hydrothermal vents that transport solutions containing Gold to the surface. Gold is rare! So, faults containing gold are also rare. Many fault zones contain quartz. Quartz is the result of hydrothermal solutions containing silica with or without Gold filling fractures, faults and fissures and solidifying.

The Iditarod Nixon Fork (INF) fault zone is a major fault zone extending from Iditarod to Nixon Fork. That is over sixty miles and with geophysics, it can be traced further. It is buried with occasional exposures that allow it to be mapped by Geologists.

Stick around. There's more!

- Geowizard

[Geowizard]

One mag line:


This is an example:




Stick around! You know why?

- Geowizard

[Geowizard]

There's more!

The magnetic data comes from an airborne magnetometer that flies along with the DIGHEM survey system as it acquires data. The data is stored with GPS location so the location is known.

As with other magnetometers used in mag surveys, a second mag is used to measure diurnal variation in the magnetic field. The fixed station reference mag is subtracted from the airborne mag to remove diurnal variation.

Diurnal variation is the natural - ever changing intensity of the Earths magnetic field. If you set a magnetometer at a fixed location, the reading changes as the diurnal variation changes!

Don't go away, There's more!

- Geowizard

[Geowizard]

Gold is not magnetic;

Why is magnetic data important?

Magnetic data shows "structure". Faults, fault zones and other anomalies are possible conduits!

Conduits may produce GOLD!

- Geowizard

[Slatco]

Tons of great info there Geo.

How accurate do you think the fault potting is on gov maps? +/- a quarter mile?

[Geowizard]

Slatco,

The accuracy varies depending on observed faults versus inferred (buried) faults. The INF Fault zone is 4000 feet across!

- Geowizard

[Geowizard]

Slatco,

Note also, erosion of Gold from the Fault zone depending on slope could exceed one half to one mile.

-Geowizard