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Gold/Mining/Energy : NAR FORUM -- Ignore unavailable to you. Want to Upgrade?

To: Earlie who wrote (14)	7/22/1998 12:32:00 AM
From: Andreas Lichtblau	Respond to of 34

Earlie: 1) recently released results have a number of ore grade (but not width) intersections (ie. 7.42%Cu-2.62%Zn/1.73m in hole 98-12 on Section 8100) spaced quite a distance apart (section 10,400 has hole 98-11 assaying 4.77%Cu-0.89%Zn/0.55m). This is 2.3km! on the same "active" horizon. Unlike Gold deposits, when an ore grade intersection is hit in VMS, but is thin (ie. metre-scale), then it's a pretty sure indication you're on the fringe of the MOTHER. Drill deeper, drill off to the sides (~100m) and you'll get thicker ore grade intersections. 2) VMS indicators they're probably using to vector-in to the Deposit(s) are: - thickness of "active" horizon: the thicker the better - Cu\Zn ratio of intersection: more Cu, closer to source - size of volcanic fragmentals: the bigger the frags, the closer to the original volcanic vent area, the hotter/copper-rich the mineralizing fluids - geophysical response: don't forget "lone" conductors stacked above/below an active horizon - alteration mineralogy and chemistry: more chlorite (or Magnesium-rich equivalents), the better 3) there's just so much one can read in the latest press release, but the fact of so many good intersections over such a large area, argues strongly for the presence of a VMS Camp, such as Noranda or Timmins: the physical scale is the same here too (~10-20km). Falconbridge/NAR has it ALL!

To: Earlie who wrote (14)	7/23/1998 9:51:00 AM
From: Andreas Lichtblau	Respond to of 34

Earlie: I've posted a drawing from an article by Allan Galley on the nar-resources Website nar-resources.com. This shows you the scale of an active VMS system. Things to note: -5km-30km scale is a Mining Camp, exactly what they've got on Zveya -Falconbridge's 'atcive horizon' is the mineralized layer at the top of the stippled unit labelled 'shallow footwall semiconformable alteration': this vectors-in to the VMS deposits which are above thickened areas of alteration; hence they look for local thickenings of the 'active horizon' -there can be more than two deposits: it all depends on how many faults are bringing up the mineralizing fluids; an individual conduit can be kilometres long Hope this stimulates the old grey matter!