Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Gold/Mining/Energy : Major General--MGJ -- Ignore unavailable to you. Want to Upgrade?

To: UPTICK who wrote (358)	3/18/1998 9:53:00 AM
From: 1king	Read Replies (1) \| Respond to of 1707

Claude, I hope you don't mind Ed but I thought I could add my two cents here! The picture that Ed posted (thanks ed) is the axial component of the secondary electrical field as measured down the hole. The left and right "ness" is displayed in two other plots that look very similar but they are not released. When Crone does a borehole survey the data is plotted as: 1)Axial Component = Z = electrical field up the hole 2)Line Component = X = electrical field in the direction of the azimuth of hole or grid north etc. 3)Cross Component = y = electrical field 90 degrees to the left of +X So this is a picture of the Z component which is typically used to give the proximity, depth, and dip of a conductive body. The left and right side of the profile reflect the negative and positive measured response of the electrical field generated by inductive coupling with the conductive unit. In a normally coupled situation (PP line is positive all the way down the hole in picture)a positive response is "very roughly" proportional to the amount of sulfides (conductive material) intersected by the hole. The negative response is indicative of sulfides (conductive material) "off-hole" or not intersected. Again the response is "very roughly proportional" to the amount of sulfides (if the conductive material is indeed sulfides) THIS IS NO INDICATION OF GRADE. Each line in the profile represents a channel or measurement window. These windows are time-defined "places on a time line" where the instrument takes a reading (measured in milliseconds) and their relative responses are used to interpret the quality and distribution of conductive material, in this case sulfides. This is where you will hear stuff like "a 20 channel conductor" (this is not) or "early time response" versus "late time response". HOWEVER there are two things to remember: 1)the interpretation of direction and distance is much more likely to give you the "center" of the conductive unit that you have intersected than the leading edge of a discrete body. 2)In-hole and off-hole responses combine to give much more complex responses where interpretation can be very difficult. Such is the case here. I apologize in advance for the verbosity but this info is about 1% of the interpretation procedure. It should however enable you to get a bit more info out of these pictures or the interpretations. I won't bore you with a complete interpretation of this hole partially because there are a few "neat" features that have been excluded from the present interp. If ed could post the geological section associated with this hole we could see that the em-response is actually presenting information confirmed by drilling! Just look at the depth of the big left-side bump and measure down on the geo-section. It has been my experience that the market does not response to borehole info because they don't understand it. If one takes this info, puts it on surface, and gives it a strike length and four "red-balls" people are falling all over themselves. Hopefully, this lull is just the calm before the storm. 1King