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Gold/Mining/Energy : Darnley Bay Resources - DBL. VSE
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To: bully who wrote (9)11/21/1997 10:37:00 AM
From: VAUGHN  Read Replies (2) of 221
 
Hello Bully

I attended a NAPEG technical lunch yesterday where Mike Plumer (I think) a geophysacist contracted to DBRL, presented background and the latest geophysical findings from the Sept-Oct airial gravity, magnetic, EM and GPR surveys.

A very interesting presentation without promotion.

- The geological setting is primarily Devonian sendiments, Dolomites, Shales, and Limstones overlying precambrian crystaline rocks exposed to the east and cut by the Lockhart River,
- No physical or geochemical evidence of igneous intrusive rocks exist on the site except in the precambrian basement to the east where ultramafic sills are exposed by the Lockhart River and which contain anomolous Ni and PGE values.
- Oil well cores were drilled twenty years ago tothe west and south the closest of which was 100km.
- No geochemical evidence of the suggested intrusion exists in these cores.
- The oil wells struck the precambrian basement at I believe he said 3,000m.
- Extrapolating the dip of the basement back through the anomoly site and to the exposed basement to the east, it is roughly anticipated that it is approximately 1,000m below ground where the anomoly is the highest.
- The only geological and geophysical explaination for the coincident gravity and magnetic high readings is a large mafic or ultramafic intrusion.
- The surveys identified what are interpreted as dykes running through and adjacent to the anomoly and five or six higher readings estimated to be as close as 200m under ground.
- All data is consistent with what would be expected from a Noril'sk type ultramafic Ni:Cu Intrusion/Flood Basalt type deposit.
-Drilling next spring/summer and we will know then.

Regards
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