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Gold Prospecting
Gold Maps & Resources
Deciphering Doug Stone maps and trying to correlate that with GeoVIC
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<blockquote data-quote="MJB" data-source="post: 117689" data-attributes="member: 1222"><p>Mate...you ask many and varied questions and unfortunately I cannot answer all of them.</p><p></p><p>I hear what your saying and it may come down to different terminaology being used by Doug stone and Geovic.</p><p></p><p>From my understanding on the Stone maps all the red shaded areas are shallow gold diggings/leads. These can be up to 60ft deep but also maybe just below the surface in detectable range. The Red lines/ deep leads are generally much deeper than that and possibly speculative. These are shown in green on Geovic.</p><p></p><p>If the maps indicated every shaft in an area an army of people would have to walk every inch of land and plot each shatf they come across which is never going to happen. Many smaller, shallow shafts are long forgotten and filled in. Maybe only the bigger deeper shafts are noted for reference.</p><p></p><p>As for the pic, you have a ridge line and the gullies off the sides all have gold diggings. This does not indicate that there is/was a reef on top of the hill shedding gold into them gullies. What may have occured millions of years ago was that there was an ancient river bed in the location that had auriferous gravels. Over the ages land masses rise and fall and erode. Where a river bed once was is not the top of a hill and the alluvial gravels have now eroded down into the gullies. Sure, there will still be gold on top but the higher concentration of gold will be in the gullies, thats why the old timers dug there. No point moving the top of the hill for little reward.</p><p></p><p>If you look on google maps and follow where the leads are on your doug stone map you can see what looks like 'Acne' in the fields where the shallow leads/diggings are. This indicates the shafts that the old timers dug to get to the old river beds. These areas are good for a detect around the mullock heaps and yes there is still virgin ground there but it may be meters undergorund still.</p><p></p><p>Hope that helps,</p><p></p><p>Cheers</p></blockquote><p></p>
[QUOTE="MJB, post: 117689, member: 1222"] Mate...you ask many and varied questions and unfortunately I cannot answer all of them. I hear what your saying and it may come down to different terminaology being used by Doug stone and Geovic. From my understanding on the Stone maps all the red shaded areas are shallow gold diggings/leads. These can be up to 60ft deep but also maybe just below the surface in detectable range. The Red lines/ deep leads are generally much deeper than that and possibly speculative. These are shown in green on Geovic. If the maps indicated every shaft in an area an army of people would have to walk every inch of land and plot each shatf they come across which is never going to happen. Many smaller, shallow shafts are long forgotten and filled in. Maybe only the bigger deeper shafts are noted for reference. As for the pic, you have a ridge line and the gullies off the sides all have gold diggings. This does not indicate that there is/was a reef on top of the hill shedding gold into them gullies. What may have occured millions of years ago was that there was an ancient river bed in the location that had auriferous gravels. Over the ages land masses rise and fall and erode. Where a river bed once was is not the top of a hill and the alluvial gravels have now eroded down into the gullies. Sure, there will still be gold on top but the higher concentration of gold will be in the gullies, thats why the old timers dug there. No point moving the top of the hill for little reward. If you look on google maps and follow where the leads are on your doug stone map you can see what looks like 'Acne' in the fields where the shallow leads/diggings are. This indicates the shafts that the old timers dug to get to the old river beds. These areas are good for a detect around the mullock heaps and yes there is still virgin ground there but it may be meters undergorund still. Hope that helps, Cheers [/QUOTE]
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Gold Prospecting
Gold Maps & Resources
Deciphering Doug Stone maps and trying to correlate that with GeoVIC
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