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Gold/Mining/Energy : Flag Resources (FGR.A A) -- Ignore unavailable to you. Want to Upgrade?


To: Stephen Mooney who wrote (2859)3/20/2000 9:20:00 AM
From: ali  Read Replies (1) | Respond to of 4269
 
Good morning Stephen and all,
that was my impression too and that might be the reason Murdo is still there, to see the end of the drilling on that hole.



To: Stephen Mooney who wrote (2859)3/20/2000 5:44:00 PM
From: Gord Bolton  Read Replies (2) | Respond to of 4269
 
Hi Stephen,

'...After Sudbury was initially excavated, magmas from deep in the crust invaded the breccia...' Does anybody know what this means, 'After Sudbury was initially excavated...'?

If you can visualize the earth as a ball filled with liquid with a hard crust--kind of like ice on the lake--
The impact of the asteroid would shatter the ice--crust and initially create a depression as well as shock waves and probably a lot of dust and debri would be thrown up on impact. As the impact was absorbed by the earth the pressure from the liquids deep below the surface would push magma (rich in iron and nickel) up to fill in the hole from the bottom, just as water would come up to close to the top of the ice in your ice fishing hole.

The hole of course would not be a hole like an ice fishing hole but would have a mixture of the asteroid, the former crust material and now in addition it would have intruded magma from deep below mixed in.

You would have a sort of rebound or squirt back effect just like when you drop a ball in the water and after the ball breaks through the surface, the water splooshes back in and it kind of squirts up in the center.

Best I can do.