Cherle, any new land that generates will have ores. There is currently no way to prevent new ores from generating. The only ores that have been removed are those in areas that were generated before Max removed them.
[quote author=imaxorz ] Well this was a fail. It didn't finish... I opened up the server because for some reason it's taking already 3 times as long to do half the map I did last time... I am giving up until I find a more efficient way to do this. I don't want to keep the server closed for more than a night. [/quote]
Omgwtfbbq. 4 hours after reading this, and at 1:30 am, I wake up and think 'That ravine was mine!' Turns out it is. Bad cherle. Stealing mah ores. :'( I should be more careful about my home invites...