Gold Bench Deposits

Gold Bench Deposits

A gold bearing bench deposit can accumulate over thousands and even hundreds of thousands of years, as a result, they can contain large quantities of gold, usually large gold.

A bench deposit forms when a river cuts a channel through the earth over a long period of time, eventually the river ends up a lot lower than it started out and will leave high banks either side of it. An exaggerated example of this would be the Colorado River & The Grand Canyon –

gold bench deposit

gold bench deposit

As you can see the Colorado river has cut through the limestone over the course of millions of years. Now imagine if the Colorado River was depositing gold throughout this long period of time. There would be gold distributed through each layer that the river has cut through the limestone. Obviously this is not a real life situation but is just to show the process involved inĀ  gold bearing bench deposit formation.

A real world gold bearing bench deposit is harder to see and less obvious. It would look more like this –

gold bench deposit 2

gold bench deposit 2

As you can see it would be harder to spot than the Grand Canyon :). However, there are some things that you can looking for if you think you may be in the vicinity of a bench deposit.

First off, be sure you are on a gold bearing river. If the river has cut a shallow valley through the surrounding hillsides there is a very good chance that there is plenty of untapped gold waiting to be dug out. Imagine if a river had been depositing gold there for thousands upon thousands of years and had remained untouched, that’s what i call a payday.

Next, dig into the hillside at a 45 degree angle towards the ground, be sure to go in several feet, the tops layers will be worthless overburden and sediment. If you begin to see rounded stones you are doing well, this means that a river once flowed here and over time ground the rough jagged stones into spherical-like shapes – just like the types you find in a river running today.

rounded river stones

rounded river stones

Take test pans as you start to go deeper, hopefully you will see some of the yellow magic ;).

Another thing to look out for are green patches high up on the hillside, this could be the location of two types of bedrock meeting each other at a V. This would trap water and allow these green plants to row more vigorously than the surrounding vegetation. Dig here. If you find large rocks eventually giving way to smaller rocks you are looking good, keep digging all the way down to the bedrock and extract the large amounts of gold that have been waiting for you to bring them home for thousands of years.

 

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