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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="Metamorphic" data-source="post: 118210" data-attributes="member: 3682"><p>1. A line of shafts on a rise would indicate to me that they were chasing the reef on an anticline (older rock flow). Large mullock heaps (waste) would suggest they went deep with the the reef dipping almost vertically from the strike, and they would not have done this without sufficient gold in their samples on the way down. </p><p>The hill being way out of detector range on the reef with mostly fine gold shedding, however depending on the friable state of that reef, many sheds of coarse gold may appear directly downslope in the drainage gullies below....this is were I would be concentrating any detector efforts including the sides of that main slope on the way down.</p><p></p><p>2. No I wouldn't, if a gold bearing 'worked' reef was running upslope it is without doubt that it has shed some gold either side of the upward rise in the past before it was worked. The amount shed is again dependant on the friable nature of the existing reef. the trick here would be to loam sample either side to establish where the shed was most prevalent, and then focus any detecting energies to that area.</p><p></p><p>3.Quite possibly so if your following 'line of reef'......the best way to tell would be measurements of strike and dip from the original reef line in order to give you an indication of the reefs continuance along the suspected bearing.</p><p>After determining that this is so, test pan loams to ascertain possible gold content if any, and establish a numerical quantitative assay of grams per tonne!</p><p></p><p> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="Metamorphic, post: 118210, member: 3682"] 1. A line of shafts on a rise would indicate to me that they were chasing the reef on an anticline (older rock flow). Large mullock heaps (waste) would suggest they went deep with the the reef dipping almost vertically from the strike, and they would not have done this without sufficient gold in their samples on the way down. The hill being way out of detector range on the reef with mostly fine gold shedding, however depending on the friable state of that reef, many sheds of coarse gold may appear directly downslope in the drainage gullies below....this is were I would be concentrating any detector efforts including the sides of that main slope on the way down. 2. No I wouldn't, if a gold bearing 'worked' reef was running upslope it is without doubt that it has shed some gold either side of the upward rise in the past before it was worked. The amount shed is again dependant on the friable nature of the existing reef. the trick here would be to loam sample either side to establish where the shed was most prevalent, and then focus any detecting energies to that area. 3.Quite possibly so if your following 'line of reef'......the best way to tell would be measurements of strike and dip from the original reef line in order to give you an indication of the reefs continuance along the suspected bearing. After determining that this is so, test pan loams to ascertain possible gold content if any, and establish a numerical quantitative assay of grams per tonne! ;) [/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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