Tut tut. Now I'll only give you 25% correct for your statement

"Massive iron deposis in Canada have nothing at all
to do with compass dip. It's only that the earths
surface is not parallel to the lines of the Earths
magnetic force."

Cheers MC

DSK wrote:

What is the phenomenon you have in mind?


Jeff Morris wrote:
Ah, how about The Earth's Magnetic Field? Or is there something else?


Hey Jeff! Quit poaching my bait!

Actually, I don't particularly want to reel in the Navvie©-fish this time. Too hard
to clean and they look unsavory in the pan.

DSK