500 gt silver plus visible gold., page-2

So is Rim on to something worthwhile or not?

Just quickly from some gathered notes;

Width of the intercept is a critical factor. Intercepts of less than 3m of ore, especially at depth, this is usually minable by underground methods. Widths up to 15m are minable underground in most conditions, but may be mined by open pit if near enough to the surface. Greater than 15m widths on an ore body would normally be surface mined if within 60m of the surface, but may be mined underground using specialised techniques.

Surface mining methods are usually cheaper on a cost per ton basis so where the ore could be mined by either method, surface mining is preferred as it is more profitable.

e.g. 1. A 3 metre intercept of 3 g/t Au at a depth of 60 m is really too small for surface mining, and too low in grade to be mined underground. By itself it’s an uneconomic intercept even though mineralization is present.

e.g. 2. An intercept of 60m of 3 gram per ton ore from 50 to 110m of depth along the drill hole is a much more positive indicator and if further good intercepts like that one are found, it may indicate a substantial body of surface minable ore.


A RIM e.g.

Diamond Drilling Assay Highlights at Sorpresa Project + silver.

Fi 329 DDH – 1m @ 114g/t Au from 159m + (1m @ 33g/t Ag from 159m)

Fi 328 DDH – 7m @ 4.24g/t Au from 87m, including 1m @ 22.7g/t Au + (20m @ 97.6g/t Ag from 80m, including 1m @ 631g/t Ag)

Fi 327 DDH – 1m @ 24.9g/t Au from 143m + (10m @ 35.9g/t Ag from 121m, AND 3m @
78.2g/t Ag from 135m)


The next assay results will be interesting but will it be enough for it to "go off"?