Detecting Alluvial Bench Deposits
February 2017 by Reese TownesThe same questions you ask yourself about gold trapping features in the present stream can be applied to the benches above the stream. Just imagine the stream at a much earlier time, before it cut its way down to the present level…
Rivers are not just random and accidental; streams and other drainages are what they are because of the forces of erosion acting on the bedrock.
The names attached to these areas came about from many sources. Many are easy to see why the name was given while others had a more contrasting note to them.
Every time we prospected here we found gold, sometimes some really coarse flakes, but no large nuggets (yet).
While sitting there, I wondered if I should go over the hole again. I did and got a louder signal that turned out being about another twelve inches deep.
My intention was to end this discussion with waypoints and routes, then I found USGS maps of the Plainfield Quadrangle.
Because these crevices catch and hold gold so well, it's worthwhile to learn how they form, which ones are good for catching gold and which ones are not.
Has your experience ever led you to wonder why some gold is deposited on bedrock and in crevices, while other gold is not? We’re going take a deeper look at this and see what we can figure it out.
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